HomeMy WebLinkAboutSEPA EPIC-27-89 - TUKWILA JUNCTION - SUBDIVISIONTUKWILA JUNCTION
NEW SUBDIVISION
FOR SINGLE FAMILY
RESIDENTIAL
14915 57T" AVE. S0.
EPIC -27 -89
March 5, 1990
7:00 p.m.
CALL TO ORDER
ROLL CALL
OFFICIALS
APPOINTMENTS:
Reappointment of Elanor
McLestor to Position #3
on the Civil Service
Commission
Reappointment of Becky
Reid to Position #3
on the Park Commission
Appointment of Hubert
Crawley to Position #4
on the Park Commission
Appointment of Nancy
Lamb to Position #4 on
the Arts Commission
Swearing In of New
Police Officers
CONSENT
AGENDA
TUKWILA CITY COUNCIL
Tukwila City Hall
Council Chambers
Regular Meeting
MINUTES
Mayor VanDusen called the Regular Meeting of the
Tukwila City Council to order and led the audience in
the Pledge of Allegiance.
DENNIS ROBERTSON; JOAN HERNANDEZ, Council President;
CLARENCE MORIWAKI; ALLAN EKBERG; STEVE
LAWRENCE; JOHN RANTS.
MOVED BY HERNANDEZ, SECONDED BY MORIWAKI,
THAT COUNCILMEMBER DUFFIE BE EXCUSED FROM THE
MEETING. MOTION CARRIED.
JOHN COLGROVE, City Attorney; MAX1NE ANDERSON, City
Clerk; RICK BEELER, Director, Department of Community
Development; ROSS EARNST, Public Works Director; JACK PACE,
Senior Planner; RON WALDNER, Chief of Police; DON
WILLIAMS, Parks and Recreation Director.
MOVED BY MORIWAKI, SECONDED BY HERNANDEZ,
THAT ELANOR McLESTOR BE REAPPOINTED TO POSITION
#3 ON THE CIVIL SERVICE COMMISSION.
MOTION CARRIED.
MOVED BY MORIWAKI, SECONDED BY HERNANDEZ,
THAT BECKY REID BE REAPPOINTED TO POSITION #3 ON
THE PARK COMMISSION. MOTION CARRIED.
MOVED BY RANTS, SECONDED BY ROBERTSON, THAT
HUBERT CRAWLEY BE APPOINTED TO POSITION #4 ON
THE PARK COMMISSION. MOTION CARRIED.
MOVED BY MORIWAKI, SECONDED BY EKBERG, THAT
NANCY LAMB BE APPOINTED TO POSITION #4 ON THE
ARTS COMMISSION.*
Councilmember Robertson asked Mrs Lamb to explain her reasons
for wanting to serve on the Arts Commission. Mrs. Reid responded
that she would like to give her volunteer time to the City. She has
spent a lot of time working on the Art Docent Program with South
Central School and feels she can bring a different perspective to the
Arts Commission. She is especially interested in bringing a more
balanced arts program in terms of the ethnic diversity we have in our
area at this time.
*MOTION CARRIED.
Chief of Police Ron Waldner introduced the newest members of the
Tukwila Police Department, Greg Victor and Mark Hayden. Mayor
VanDusen administered the Oath of Office and welcomed Greg and
Mark to the City.
a. Approval of Minutes: 2/20 /90-- Regular Meeting
b.
Approval of Vouchers
General Fund
City Street
Arterial Street
Land Acq., Building, Dev.
Water Fund
Sewer Fund
Water /Sewer Construction
Foster Golf Course
$57,291.74
17,644.94
57,127.04
5,257.12
42,250.96
1,061.14
29,841.87
10,101.84
•
Regular Council Minutes
March 5, 1990
Page 2
Consent Agenda (con't)
Approval of Vouchers
PUBLIC HEARINGS
Approval of Preliminary
Plat - Brigadoon Ridge/
Tukwila Junction,
Requested by EMS, Inc.
Citizen Comments
Surface Water (412) 58,433.57
Equipment Rental 53,206.71
Firemen's Pension 972.60
TOTAL $333,189.53
MOVED BY HERNANDEZ, SECONDED BY RANTS,
THAT THE CONSENT AGENDA BE APPROVED AS
SUBMITTED. MOTION CARRIED.
Jack Pace, Senior Planner, outlined the process followed for the
approval of the preliminary plat for the 17 lot subdivision located at
14915 - 57th Ave. So., as requested by EMS, Inc. (Brigadoon
Ridge/Tukwila Junction). Mr. Pace stated that the preliminary plat is
a process of laying out a parcel of raw land into lots, street and public
areas in order to transform the raw land into building sites. The
Planning Commission has recommended approval with conditions.
This site is next to the City reservoir. Most slopes on the site are
between 10 and 20 percent. There are a few areas that are over 40
percent. With this subdivision is proposed a looped water system that
would provide better water service to the area. Because of the
extension of the sewer for this project, there will not be a need for an
LID for this project. Another issue is the design of roads. There are
three items that are being looked at: reducing the road right -of -way
width from 50 feet to 43 feet; increasing the length of the cul -de -sac to
810 feet. This design of the cul -de -sac will allow for options for future
connections to the north if the City and the property owners to the
north should decide to do so. Cut and fill is another issue to be
considered. Minimizing the cut and fill will help to reduce the impact
on the slopes. The last item to be considered is trees. The Planning
Commission has recommended that trees that must be removed be
replaced with 2.5 inch caliper trees on a two for one basis.
Council President Hernandez inquired who will maintain the open
space buffers along the road and along Lots 8 and 9. Mr. Pace
responded that the open space buffers along the road will be treated
as a common area and be the responsibility of the homeowners. The
other area is an open space easement and will be the responsibility of
the individual property owner.
Council President Hernandez questioned whether the end of the
cul -de -sac would be wide enough for a fire truck to turn around.
Mr. Pace commented that the cul -de -sac design is standard to the City
and would allow for turn around of a fire truck; however, the area
would be tight for a hook and ladder truck.
Mayor VanDusen opened the Public Hearing at 7:39 p.m. and
solicited comments from the public.
Mike Bergstrom, P.O. Box 4393, Seattle 98104, represented his
parents, Carl and Kathleen Bergstrom, who own the property
immediately north of Brigadoon Ridge. He stated he and his parents
are in favor of the proposal with one exception. He requests that
options be left open to allow for So. 150th to be connected to the
cul -de -sac in the future rather than to keep it a condition of the
request for exception of the 600 foot length limitation on cul -de -sacs as
recommended by staff. Mr. Bergstrom commented that he has no
strong feeling one way or the other about having the connection
as they already have access to 57th and 150th.
Warren Chaney, 14937 - 57th Ave So., lives to the north of the
property adjacent to the proposed 18 foot wide greenbelt. He is
concerned about who will maintain the greenbelt area. Although he
now has access to his backyard via an easement that runs alongside his
property, he will lose that access once the street is put in unless the
•
Regular Council Minutes
March 5, 1990
Page 3
Citizen Comments (con't)
applicant is willing to put a driveway across the greenbelt. Mr. Chaney
would like to see parking on the street restricted to one side only or
not at all. As his house is only six feet back from the property line, he
would not like to see parking allowed on his side of the street.
Gary Sherer commented that he is concerned about the heavy traffic
that may appear with the development and the issue of water runoff as
houses are built.
Citizen comments concluded, Mayor VanDusen closed the Public
Hearing at 7:51 p.m.
Councilman Rants noted that due to the narrow width of the street,
limiting parking to one side of the street would be very important
especially in light of comments by the Fire Chief and Police Chief that
they are not able to access the area as quickly as needed. Councilman
Lawrence commented that his concern is about the street ever going
through. If it does, with a curve, a slope, and a narrow street, it would
be asking for trouble for an emergency vehicle to try to access the
area. Also, if residents eventually start using it as a semi - arterial, more
hazards will be created with pedestrians, bicycles, etc. The street is not
suitable for an arterial but it may end up being used as one.
Councilman Moriwaki noted that the letters from the Police and Fire
Chiefs should be looked at very carefully. He feels that in an
emergency fire call, they will take whatever fire apparatus is available.
If property and life are threatened, they wouldn't wait for the short
wheel based pumper, they would use whatever they had available at
the time. Assistant Chief Olivas' recommendations require future
connection to the two streets as soon as possible. Councilman
Moriwaki noted that the Police Department had investigated the area
extensively. They encourage the development of through street
capability. Councilman Moriwaki commented that 144th is being used
as access as well as other residential streets. Except for unusual
situations, traffic in this area is not usually heavy. Councilman
Robertson stated that most of the traffic in the area of the
development will be generated by residents of the development and
whatever comes to the property to the north.
Councilman Moriwaki stated that in his opinion the issue of open
space easements is still unclear in terms of how it will work.
Councilman Robertson voiced his concurrence and made the following
recommendations: 1) Clarify open space easements; 2) Investigate a
complete street plan, including the Bergstrom property, for through
access to 150th; 3) Develop an agreement to follow the house siding,
painting,and shrubbery plans for all houses. Councilman Rants
suggested including the use of landscape architects in the shrubbery
plans.
Brad Decker, developer, commented that there have been studies
done, including extensive traffic studies, on this project since it began
two years ago. There have been no exceptions to the code requested.
They put together a plat according to the Tukwila Municipal Code. It
has been changed since then according to City staff. They are
following the recommendations of the staff-to get to this point. Mr.
Decker feels they have done every study that has been requested and
have redesigned the plat completely. The City staff has requested the
variances, not Mr. Decker's organization.
Councilman Lawrence asked Attorney Hard what the City's liability
would be if we forced the developer to leave the greenspace area in
the southwest corner and a tree should happen to blow down on a
$200,000 house. Attorney Hard responded that there would probably
not be any City liability if the easement were worded clearly and the
person who buys the property takes it with full notice of the
requirements of what's on the property.
Regular Council Minutes
March 5, 1990
Page 4
Request for Approval of
Preliminary Plat -
Brigadoon Ridge/Tukwila
Junction (con't)
• • �vyy
Councilman Moriwaki asked Mr. Decker what plans he had for
excavating the hillside. Mr. Decker responded that he does not plan to
use explosives. They will only go along the grade. He plans to go on
top of rather than into the hill. The road will be cut down to the
proper location and size.
Regarding the plot plan, Councilman Ekberg proposed that the lines -
for open space be drawn as proposed by the administration and to
expand the open space and allow more buffer between the residents
and open space. A second proposal would include approving the
extension of the cul -de -sac to the 800 foot level with the turnaround.
Also, with a street width of 30 feet, restrict parking to only one side of
the street.
In response to a question by Mayor VanDusen regarding the Draft
Sensitive Area Ordinance requirements, Jack Pace noted that the
Brigadoon development meets or exceeds the ordinance. The only
area that does not meet the draft SAO requirements is the one knoll
next to the reservoir which is over 40 percent; however, we are looking
at changing the grade in that area so that it will match with the grades
of the City reservoir. The reason for the waiver is to minimize the
amount of cut and fill needed for the individual building sites in the
sub - division. If the roads are built to City standards, the houses will
need to be taller because you will be putting them on the steeper
portion of the property. Also, the draft ordinance requires the
replacement of one tree for each one removed. We are requiring that
two trees be replaced for each one removed. We are also requiring
larger stature trees; instead of one and one -half inch caliper, we are
requiring two and one -half inch trees. In most cases you will find that
this development meets or exceeds the draft SAO requirements except
for the one small area, and the reason for that is so it matches the final
contours of the City reservoir.
MOVED BY HERNANDEZ, SECONDED BY MORIWAKI, TO
APPROVE THE PRELIMINARY PLAT FOR BRIGADOON
RIDGE /TUKWILA JUNCTION WITH THE UNDERSTANDING
THAT FINAL APPROVAL WILL COME BACK TO COUNCIL
FOR APPROVAL*
MOVED BY MORIWAKI, SECONDED BY EKBERG, THAT
THE MOTION BE AMENDED TO ADD ITEM 3b OF THE
STAFF REPORT TO THE PLANNING COMMISSION, DATED
JANUARY 18, 1990 , WHICH READS, "EXPAND THE OPEN
SPACE EASEMENT AREA AS SHOWN ON ATTACHMENT G ".
MOTION CARRIED.
MOVED BY MORIWAKI, SECONDED BY EKBERG, THAT
THE MOTION BE AMENDED TO ADD A FULL DOCUMENT
WITH A DEFINITION OF OPEN SPACE EASEMENT TO
INCLUDE LEGAL LIABILITY OF BOTH PARTIES TO BE
DRAWN UP BY THE CITY ATTORNEY. **
Attorney Hard commented that Council will have the easement
defined and all those rights and responsibilities defined at the time of
approval of the final plat.
* *MOTION CARRIED.
MOVED BY ROBERTSON, SECONDED BY EKBERG THAT
THE MOTION BE AMENDED TO LIMIT ON STREET
PARKING TO ONE SIDE OF THE STREET FROM 57TH
AVENUE SOUTH TO THE END OF WHAT IS NOW A
CUL-DE- SAC. **
1'
Regular Council Minutes
March 5, 1990
Page 5
Request for Preliminary
Plat Approval - Brigadoon
Ridge /Tukwila Junction
(con't)
Recess
9:28 p.m. - 9:41 p.m.
Amend Agenda
NEW BUSINESS
Acceptance of Easements -
and Right -of -Way from
Speiker Partners for
Utilities/Sidewalks at
Tukwila Pond Development
Authorize Administration to
Enter into Interlocal Agree-
ment for Library Services
Study and Expend
Appropriate Funding
• 050
Councilman Ekberg requested the amendment be modified to read,
"parking will be restricted on the north side of 150th Place ".
Councilman Robertson agreed.
* *MOTION CARRIED.
MOVED BY ROBERTSON, SECONDED BY LAWRENCE, TO
RESCIND THE AMENDMENT WHICH ADDS ITEM 3b OF THE
STAFF REPORT TO THE PLANNING COMMISSION, DATED
JANUARY 18, 1990, AND READS, "EXPAND THE OPEN SPACE
EASEMENT AREA AS SHOWN ON ATTACHMENT G ".
MOTION CARRIED WITH MORIWAKI VOTING NO.
*ORIGINAL MOTION CARRIED AS AMENDED. THE
PRELIMINARY PLAT FOR THE 17 LOT SUBDIVISION
LOCATED AT 14915 - 57TH AVENUE SOUTH, BRIGADOON
RIDGE/ TUKWILA JUNCTION IS APPROVED WITH
CONDITIONS.
The meeting was resumed with Councilmembers in
attendance as listed above.
MOVED BY HERNANDEZ, SECONDED BY ROBERTSON,
THAT ITEM 8a BE DELETED FROM THE AGENDA.*
Council President Hernandez reported that the
Embassy Suites Developer's Agreement was
withdrawn from the Utilities Committee;
therefore, Council is not prepared to discuss it
at this .time.
*MOTION CARRIED.
MOVED BY EKBERG, SECONDED BY LAWRENCE THAT
COUNCIL ACCEPT THE EASEMENTS AND RIGHT -OF -WAY
FROM SPEIKER PARTNERS FOR THE TUKWILA POND
DEVELOPMENT FOR UTILITIES/SIDEWALKS *
Councilman Rants asked for clarification of the developer's
agreement. Ross Eamst explained that there are two developers
involved, Southcenter and Speiker Partners. Southcenter was the first
agreement; they agreed to 50 percent, up to $50,000. The other
agreement was with Speiker Partners who paid $50,000 also and they
did other improvements at Strander and Andover Park West. When
we awarded the contract, we asked that the City pay $12,000 for
construction inspection. The contract was awarded on that basis.
*MOTION CARRIED
MOVED BY EKBERG, SECONDED BY HERNANDEZ, TO
AUTHORIZE ADMINISTRATION TO ENTER INTO AN
INTERLOCAL AGREEMENT FOR A LIBRARY SERVICES
STUDY AND APPROPRIATE FUNDING OF $6,000.
Councilman Moriwaki expressed his concerns in using the Georgette
Group to do the study. He feels the data collection phase could be
done by the City, and the fact that there are communities so far away
from Tukwila, he wonders how much emphasis we will get in terms of
our needs. He would rather have done something with communities
within our region to discuss regional needs.
Regular Council Minutes
March 5, 1990
Page 6
Interlocal Agreement to
Authorize Interlocal
Agreement for Library
Services (con't)
Sensitive Areas
Ordinance Discussion
REPORTS
John McFarland responded that our concerns have been expressed to
the City of Mercer Island who is acting as Lead Agency on this project.
The project will be done is phases with reviews done at the end of each
stage to insure that our expectations are met. If they are not met in
terms of the quality and volume of the data and the conclusions drawn
at the end of Phase I, we would terminate our participation in the
project. This could be written into the interlocal agreement. The
commonality that exists between the cities in this project is that none
of us are annexed into the King County Library System.
Councilman Ekberg agreed with Councilman Moriwaki's statement.
He commented that according to the Mayor's letter of 2/28/90, if the
phasing capacity is done and completed, it provides us the opportunity
to discontinue study any time we determine. He would like to have the
phased in capacity added to the agreement. Mayor VanDusen assured
him that it had been added. Councilman Ekberg suggested a
second survey to determine what type of library service the residents
would like to see.
Councilman Lawrence suggested using the consultants through
Phase II, but developing the conclusions in- house.
John McFarland noted there are still areas needing to be worked out
as part of the interlocal contract between the jurisdictions and the
consultant. We will be able to get some of our specific needs tailored
into the agreement. We will be able to get a sharper definition of the
tasks we want emphasized in each phase.
*MOTION CARRIED.
Councilman Robertson suggested Council read and become familiar
with the original draft Sensitive Areas Ordinance date 10/89 prior to
reviewing the new draft in order to be able to identify the
modifications.
Council discussed holding joint hearings with the Planning
Commission. This would be possible, but each body would have to
make separate decisions as established by ordinance. Discussion
ensued on the timeline for public hearings.
Bill Arthur, Citizens Advisory Committee member, commented that
the committee is aware of the complexity of the issues they are dealing
with. He and other members of the committee would be willing to
participate in public workshops to explain how they arrived at their
final recommendations . Councilman Lawrence suggested a joint
meeting with the Planning Commission.
Rick Beeler suggested holding a citizens workshop as an informational
session to provide an opportunity for citizens to ask questions
regarding the ordinance.
Councilman Moriwaki commented that if more time is needed to
complete the Sensitive Areas Ordinance, the moratorium be extended
as well.
Alternative timelines will be prepared for Council by Rick Beeler.
Mayor VanDusen stated he will have to authorize a
Change Order for Station #54 for $25,000 to
repair a roof problem.
Council President Hernandez has been appointed to the Jail Advisory
Committee by the Suburban Cities Association.
•
Regular Council Minutes
March 5, 1990
Page 7
EXECUTIVE SESSION
10:36 - 11:OOp.m.
Resolution No. 1134 -
Adopting a Schedule of
Expenditures of Bond
Proceeds Received from
King County for the
Acquisition of Open Space
Projects.
ADJOURNMENT
11:05 p.m.
Council moved into Executive Session to discuss a property
purchase.
Council meeting resumed with Councilmembers in attendance as
listed above.
MOVED BY MORIWAKI, SECONDED BY HERNANDEZ,
THAT THE PROPOSED RESOLUTION BE READ BY TITLE
ONLY. MOTION CARRIED.
Mayor VanDusen read a Resolution of the City Council of the City of
Tukwila, Washington, adopting a schedule of expenditure of bond
proceeds received from King County for the acquisition of Open
Space projects.
MOVED BY MORIWAKI, SECONDED BY HERNANDEZ,
THAT RESOLUTION NO. 1134 BE ADOPTED AS READ.
MOTION CARRIED.
MOVED BY HERNANDEZ, SECONDED BY ROBERTSON,
THAT THE MEETING BE ADJOURNED. MOTION CARRIED.
Gary L. Van Dusen, Mayor
t �,r
e Cantu, Deputy City Clerk
WAC 197 -11 -970
Description of Proposal
• •
MITIGATED
DETERMINATION OF NONSIGNIFICANCE
PRELIMINARY PLAT APPROVAL OF 17 -LOT SUBDIVIDION FOR A
3.93 ACRE PACEL ZONED R -1, 7.2 (SINGLE FAMILY RESIDENTIAL)
Proponent
EMS. INC.
Location of Proposal, including street address, if any 14915 - 57TH AVENUE S.
Lead Agency: City of Tukwila File No. EPIC -27-89 TUKWILA JUNCTION
The lead agency for this proposal has determined that it does not have a probable
significant adverse impact on the environment. An environmental impact statement
(EIS) is not required under RCW 43.21C.030(2)(c). This decision was made after
review of a completed environmental checklist and other information on file with the
lead agency. This information is available to the public on request.
Q There is no comment period for this DNS
X[ This DNS is issued under 197 -11- 340(2). Comments must be submitted by
JANUARY 22, 1990 . The lead agency will not act on this
proposal for 15 days from the date below.
Responsible Official Rick Beeler
Position /Title
Planning Director Phone 433 -1846
Address , 6200 Southcenter Boulevard, T_kw% _.
.d•4 %1
Date �,��,.� ��•
8188
Signature
Yo may appea this determination to the City Clerk at City Hall, 6200 Southcenter
Boulevard, Tukwila, WA 98188 no later than 10 days from the above date by written
appeal stating the basis of the appeal for specific factual objections. You may be
required to bear some of the expenses for an appeal.
Copies of the procedures for SEPA appeals are available with the City Clerk and
Planning Department.
FM.DNS
(SEE ATTACHED CONDITIONS)
•
January 5, 1990
Tukwila Junction 88 -1 -Sub/ EPIC -29 -89
SEPA final mitigation
1. A temporary easement for the cul -de -sac, including pavement as
prescribed in the subdivision code shall be provided as part of
this development, its removal conditioned on the connection
becoming available to South 150th Street. This temporary cul -de-
sac shall be in the sole turnaround at the end of this street.
2. Item #5- per soils report we have provided the following
comments:
A. Per p.2 of soils report- "groundwater " - a temporary erosion
control plan shall be part of the submittal to mitigate all
potential erosion problems associated with the construction of
this project including both public utility /roadways and private
unit constructions.
B. Per p.3 of soils report, the construction of this development
needs to be restricted to dry season construction only. A
schedule shall be provided outlining dry season construction.
C. Per p.5 of soils report, site drainage /all footing drains
shall be tapped into public storm for all structures and footings
in the subdivision to mitigate more intense runoff and less
impervious surfaces.
D. If the City is to reply on the recommendations of this soils
engineer's report, then the recommendation on page 9 of the soils
report to retain this engineer throughout the construction phase
is necessary. Also, the soils engineer of record shall be
required to review all individual lot site plans to assure
conformance to the requirements of the soils report as part of
any individual site plan approval process.
E. The revegetation plan shall be identified on all site plans,
and all approval plans for the plat, including identification of
non - buildable easements to assure proper mitigation of steep
slopes.
F. The applicant will provide a non - buildable easement for lots
8,9,10,11 and 12. These areas have slopes greater than 40% by
providing this method will minimize the amount of cut and fill.
Page Two
Tukwila Junction
SEPA mitigation
G. Lot 1 existing and finish grades will match the adjacent
grades of the City's newly constructed resevior.
CITY OF TUKWILA
6200 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON 98188
January 5, 1990
Brad Decker
2366 Eastlake Avenue East
Suite 433
Seattle, Wa. 98102
RE: BRIGADOON RIDGE ROADWAY ISSUES:
Dear Mr. Decker:
PHONE # (206) 433 -1800
Gary L VanDusen, Mayor
The purpose of this letter is inform you of our agreement for the
roadway /utilities easements. The Public Works Staff would
recommend your proposal of a 43 foot wide right -of -way, plus 10
foot utility and roadway easement on both sides of the 43 foot
right -of -way.
The developer shall redesign the turning radius at the most
westerly turn to bring a turning radius as close to a 275 feet
turning radius as possible. Also recommended is a minimum turning
radii equal or greater than the easterly turning radii to allow
safe passage of emergency vehicles per, Tukwila Standard
template.
Should you have any questions, please feel free to contact me at
433 -1845.
Respectfully,
A6Aio-9,)
Darren Wilson
Assistant Planner
cc: J. Pace, Senior Planner
R. Cameron, City Engineer
City of Tukwila
6200 Southcenter Boulevard
Tukwila Washington 98188
(206) 433 -1800
Gary L. VanDusen, Mayor
January 5, 1990
Brigadoon Ridge EPIC-21!-89
(TUKWILA JUNCTION)
Mitigation Determination of Nonsignificance
SEPA Conditions:
1. Based upon the applicant's soils report, dated August 28,
1989, prepared by Geotech Consultants, Inc., the applicant
will do the following:
A. Per p.2 of soils report- "groundwater " - a temporary
erosion control plan shall be part of the submittal to
mitigate all potential erosion problems associated with
the construction of this project including both public
utility /roadways and private unit constructions.
B. Per p.3 of soils report, the construction of this
development needs to be restricted to dry season
construction only. .A schedule shall be provided
outlining dry season construction.
C. The soils engineer of record, should be retained
throughout the construction phase /s as necessary. Also,
shall be required to review all individual lot site
plans to assure conformance to the requirements of the
soils report as part of any individual site plan
approval process.
D. The applicant has agreed on a revegetation plan see
map. This includes identification of 'non - buildable
easements to assure proper mitigation of steep slopes.
E. Lot 1 will match the existing grades of the adjacent
reservoir.
2. The applicant will install a water loop system as required
by the Fire, Public Works and Planning Departments.
• 1
MEMORANDUM
TO: JACK PACE /DARREN WILSON
FROM: PHIL FRASER
DATE: JANUARY 4, 1990
SUBJECT TUKWILA JUNCTION
PER MY MEETING WITH REPRESENTATIVES OF THE MUSTANG DEVELOPMENT
(TUKWILA JUNCTION) ON 1/3/90, THE FOLLOWING WAS DISCUSSED:
1. CONDITIONS OF THE 1/3/90 MEMORANDUM (ATTACHED) SHALL APPLY.
THE FOLLOWING EXCEPTION TO THIS IS AS FOLLOWS:
ITEM #2, I AS PUBLIC WORKS STAFF WOULD RECOMMEND DEVELOPER'S
PROPOSAL OF 43' WIDE R/W PLUS 10' UTILITY AND ROADWAY
EASEMENTS ON BOTH SIDES OF THE 43' R /W.
DEVELOPER SHALL REDESIGN TURNING RADIUS AT MOST WESTERLY
TURN TO BRING TURNING RADIUS AS CLOSE TO 275' TURNING
RADIUS AS POSSIBLE, A MINIMUM TURNING RADII EQUAL OR GREATER
THAN EASTERLY TURNING RADII, AND ALLOW SAFE PASSAGE OF
EMERGENCY VEHICLES PER TUKWILA STANDARD TEMPLATE.
2. A TEMPORARY EASEMENT FOR THE CULTISAC, INCLUDING PAVEMENT
AS PRESCRIBED IN THE SUBDIVISION CODE SHALL BE PROVIDED
AS PART OF THIS DEVELOPMENT, ITS REMOVAL CONDITIONED
ON THE CONNECTION BECOMING AVAILABLE TO S. 150TH STREET.
THIS TEMPORARY CULTISAC SHALL BE IN THE SOLE TURNAROUND
AT THE END OF THIS STREET.
3. ITEM #5 - PER MY REVIEW OF SOILS REPORT I PROVIDE THE
FOLLOWING COMMENTS:
A. PER P. 3 OF SOILS REPORT, THE CONSTRUCTION OF THIS DEVELOP-
MENT NEEDS BE RESTRICTED TO DRY SEASON CONSTRUCTION ONLY.
A SCHEDULE SHALL BE PROVIDED OUTLINING DRY SEASON
CONSTRUCTION.
B. PER P. 2 OF SOILS REPORT - "GROUNDWATER" - A TEMPORARY
EROSION CONTROL PLAN SHALL BE PART OF THE SUBMITTAL
TO MITIGATE ALL POTENTIAL EROSION PROBLEMS ASSOCIATED
WITH THE CONSTRUCTION OF THIS PROJECT INCLUDING
BOTH PUBLIC UTILITY /ROADWAYS AND PRIVATE UNIT
CONSTRUCTIONS.
C. PAGE 5 OF SOILS REPORT - SITE DRAINAGE - ALL FOOTING DRAINS
SHALL BE TAPPED INTO PUBLIC STORM SYSTEM FOR ALL
STRUCTURES AND FOOTINGS IN THE SUBDIVISION TO MITIGATE
MORE INTENSE RUNOFF AND LESS IMPERVIOUS SURFACES.
D. IF THE CITY IS TO RELY ON THE RECOMMENDATIONS OF THIS
SOILS ENGINEER'S REPORT, THEN THE RECOMMENDATION ON
PAGE 9 OF THE SOILS REPORT TO RETAIN THIS ENGINEER
THROUGHOUT THE CONSTRUCTION PHASE IS NECESSARY.
ALSO, THE SOILS ENGINEER OF RECORD SHALL BE REQUIRED
TO REVIEW ALL INDIVIDUAL LOT SITE PLANS TO ASSURE
CONFORMANCE TO THE REQUIREMENTS OF THE SOILS REPORT
AS PART OF ANY INDIVIDUAL SITE PLAN APPROVAL PROCESS.
E. THE REVEGETATION PLAN SHALL BE IDENTIFIED ON ALL SITE
PLANS, AND ALL APPROVAL PLANS FOR PLATS, INCLUDING
IDENTIFICATION OF NON - BUILDABLE EASEMENTS TO ASSURE
PROPER MITIGATION OF STEEP SLOPES.
XC. RON CAMERON
DEVELOPMENT FILE: TUKWILA JUNCTION
ATTACHMENT 1
•
City of Tukwila
PUBLIC WORKS DEPARTMENT
6300 Southcenter Boulevard
Tukwila, Washington 98188
(206) 433 -0179
Ross A. Earnst, P.E. Director
MEMORANDUM
TO: Jack Pace
FROM: Ron Cameron and Phil Fraser
DATE: January 3, 1990
SUBJECT: Tukwila Junction
1. 60 feet cul de sac per subdivision code is O.K.
2. Curve (900) turning at lot 17 - needs radius to provide for 25 mph speed
comparitive to 10 curve at lot 15 - the 900 shown is too tight, not
consistent with upper curves.
3. Sign on development to clearly show the plat and future connection of South
150th Place to South 150th Street providing vehicle and pedestrian access.
Alternative access - especially considering the distance from 144th /57th to
the end of South 150th Place being effectively a 2,910 foot cul de sac.
Any blockage south of 144th on 57th isolates all residences to the end.
Blockage can be caused by repair of a broken water, sewer, gas line or
other similar activity.
Issues:
1. 30 feet width as local access compared to 26 feet cul de sac width.
2. 50 feet right -of -way compared to 40 feet right -of -way.
3. "Through" traffic of between "Hill" and Macadam and the 2,910 foot
"cul de sac ".
4. Parking:
a. both sides on street
b. one side
c. prohibited
Minimum of 50 feet of right -of -way as South 150th Place is to connect to
South 150th Street.
Jack Pace
MEMORANDUM
January 3, 1990
5. Soils report comments - Public Works is awaiting report via the Planning
Department.
6. Contours of reservoir, lot 1 and 2, match, O.K. to remove "Knob ".
RC /kjr
City of Tukwila
FIRE DEPARTMENT
444 Andover Park East
Tukwila, Washington 98188 -7661
(206) 575 -4404
•
Gary L. VanDusen, Mayor
TO: Darren Wilson
FROM: Tom Keefe, Fire Chie -'
SUBJECT: TUKWILA JUNCTION
DATE: December 26, 1989
In response to your questions regarding the looped main system and
the "partial cul -de -sac" or "wide turn area" at the 90 degree turn
in the road, I have formulated these answers.
Due to the fact that no one appears to know when or if the street
will continue and eventually intersect another street the fire
department is requiring the water main to loop and not dead end.
We require this for several reasons, i.e.:
A. The water pressure and gallons per minute are less
in that area than in other areas in the City.
B. To provide an uninterrupted water supply for fire
protection as recommended in the NFPA Fire Protection
Handbook, page 17 -41 "Pipelines" see attached.
C. Dead end mains have a tendency to collect debris
that can clog or damage pumps and fire nozzles.
The fire department is requiring the wide turn or partial cul -de-
sac because as stated above the continuation of the street is
unknown, we have compromised and allowed a hammer -head turnaround
on the short leg of the street. We need the wide area in the bend
to maneuver the large fire apparatus in a timely and safe manner.
The only acceptable alternative to the wide turn is to end con-
struction at the bend and provide a cul -de -sac, there is no
alternative for the looped system if construction is anticipated
in the future.
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•
WATESISTRIBUTION SYSTEMS 17 -41
GRAVITY AND PUMPING SYSTEMS
There are two basic types of water distribution sys-
tems: gravity systems and direct pumping systems. Most
water systems are a combination of the two types.
Gravity Systems
A true gravity system is one which delivers a supply
from the source directly to the distribution system without
the use of pumping equipment. This type of system is
usually ideal for a fire supply providing pressures are
adequate to supply fire demands and normal consumption
rotes. A gravity system is extremely reliable because the
supply is not dependent upon the operation of mechanical
equipment; however, the reliability of a well designed and
safeguarded pumping system can be developed to the
extent that no distinction is made between gravity and
pumping systems.
Pumping Systems
When water cannot be obtained at an elevation suffi-
dent to provide working pressures from the elevation
head, it is necessary to provide pumps on the system.
These pumps are normally located at the source of supply
and are used to develop the pressure needed to overcome
friction loss in the supply system and to provide satisfac-
tory working pressures in the distribution system. Public
systems sometimes have water treatment facilities associ-
ated with the pumping station. It is not the intent of this
HANDBOOK to discuss water treatment; however, water
treatment facilities will affect flow rates and quantities of
water available to the distribution system. Many times
limiting features of supply are due to some element of
water treatment. Therefore it is imperative that the effects
of water treatment on the availability of supply be thor-
oughly understood and considered.
Combination Systems
Often associated with pumping systems are water
distribution storage facilities. These provide for storage of
water during times of least demand and then supply water
during times of peak demand.
Storage can be located so that pumps directly supply
the storage facility, and water flows to the distribution
system from the storage facility. Storage can also be pro-
vided at a remote location within the distribution system,
and water can be pumped directly into the distribution
system with any excess automatically dumping into the
storage facility. The more water which can be maintained
to elevated storage, the more reliable a system can be
considered because water flowing from a storage facility is
the same as a gravity system. Any failure of pumping
equipment will not prevent this water from being available
for fire protection purposes.
Distribution storage may also consist of large water
tanks located at surface elevations equal to or even some-
what lower than the areas of the distribution system they
serve. These tanks are filled during periods of relatively
low consumption in the system. When demand rates are
high pumps deliver water from these storage facilities to
the distribution system. Duplication of pumping equip-
ment and proper design and operation can improve the
reliability of these facilities to approach that provided by
elevated storage.
SUPPLY CONDUITS, AQUEDUCTS,
PIPELINES
Two terms sometimes used to describe the conveyor
of water from the source of supply to the distribution
system are "conduit" and "aqueduct." A conduit is an
enclosed pipe capable of withstanding internal water
pressures while an aqueduct is either a closed tube or an
open trench, canal, or channel in which water flows but
which has no pressure on the side or bottom except that
caused by the weight of the water. Aqueducts are not
usually designed to withstand internal pressure other than
atmospheric.
Pipelines
Pipelines are designed to withstand pressure and to
distribute water to the point of use. Three classes of
pipelines, or distribution mains, in a large system are:
1. Primary feeders consisting of large pipes with rela-
tively wide spacing. They convey Large quantities of
water to various points of the system for Local distri-
bution to the smaller mains.
2. Secondary feeders forming a network of pipes of
intermediate size. They reinforce the distribution grid
within the various panels of the primary feeder system
and aid the concentration of the required fire flow at
any point.
3. Distributors consisting of a gridiron arrangement of
small mains. They serve the individual fire hydrants
and blocks of consumers.
In order to provide for reliability, two or more primary
feeders should extend by separate routes from the source __
of supply to the high value districts of the citySSimirl rly,,,)
secondary feeders ,_should be,arranged,as much as possible}
in loops to give two directions of supply to any point. This
tpractice increases the capacity of the supply at any given
point and assures that a break in a feeder main . will not
completely cut off the supply.
_. )
Secondary-feeders should generally be installed not
over 3,000 ft (914 m) apart in builtup areas.
Where water systems are divided into pressure zones,
water can be transferred from one zone to another by
operating valves or by using fire department pumpers to
pump from the hydrants in one zone to hydrants in the
other. The same sort of thing can be done between the
water systems of adjoining communities or between a
private system and the public system. However, great care
must be taken to prevent damage from occuring by sub-
jecting parts of the system to excessive pressures and
possible contamination. Usually this is not a good practice
and should not be attempted without advance planning,
adequate controls, and specific written approval from
health authorities.
The Size of Pipe
Pipe less than 6 in.* in diameter is not recommended
for fire service, and 6 in. (150 mm) pipes should only be
*Nominal pipe sizes are not directly convertible into metric
sizes. The following metric equivalents for common pipe sizes
(rounded off for convenience in use) may be useful as points of
reference: 4 in. 100 mm; 5 in. 125 mm; 6 in. 150 mm; 8 in. 200
mm; 10 in. 250 mm; 12 in. 300 mm; 16 in. 400 mm; and 20 in. 500
mm.
•
December 22, 1989
Tukwila Junction final sepa concerns
From Fire:
1. The loop system must be inserted since the future of the
adjacent lots to the north are undeveloped and there is no
projected development.
2. The cul -de -sac must remain with the above certainties.
3. The hammer -head area must not have curbs, gutters and
sidewalks inserted.
From Public Works:
water concerns
1. The loop system must be inserted.
2. Identify water main easements off of the roadway
sewer concerns
1. Identify sewer easements off of the roadway
traffic concerns
1. Deadend barrier must be identify at the end of the road.
2. The hammer -head must comply with fire marshal approval.
3. Identify dimensions of R/W on site plan, including radii on
turnarounds and pavements.
other concern/s
1. Rockers can not exceed 4' in height
Planning concerns
I agree with both fire /public works on the following:
1. The requirement of the loop system
2. The cul -de -sac shall remain
3. No curb, gutters and sidewalk necessary for hammer -head area
Page two
other concerns (sepa)
1. Replacement of existing vegetation for every one tree remove
the city will require 2tol ratio.
2. estimate the amount of grading /filling that will occur
a. when will this process begin
3. all issues must be resolved by 1/5/90.
LAND WE PERMIT
ROUT IM FORM
CITY OF TUKWILA
DEPARTMENT OF COMMUNITY DEVELOPMENT
PERMIT NO.:
TO: ..
II
Building 1. Planning [ Pub Wks Fire
PROJECT iea)/ 4 3�yC M
ADDRESS S?- V :. S.
DATE TRANSMITTED 11/8/177
STAFF COORDINATOR D,Qe, A/ O�Lsoid
RESPONSE REQUESTED BY / 211 /fy
DATE RESPONSE RECEIVED
Please review the attached projects plans and respond with appropriate comments in the space' below.'
indicate crucial concerns by checking the box next to the line(s) on which that concern is noted:`
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Plan check ate:
)2l zZls9
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Comments pxepared by:
t►, t IKE s' 1 D p km vs,
09/08/89
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LAND SE ' PERMIT
ROU -' G FOR
CITY OF TUKWILA
DEPARTMENT OF COMMUNITY DEVELOPMENT
PERMIT NO.:
TO E Building
Planning X1 Pub Wks IX Fire f Police 1 1 ParksfRec •
PROJECT76/Z7e%f%4 3 -yC¢7 M
ADDRESS s- ` l/G 5.
DATE TRANSMITTED /1 / 1/er fc
STAFF COORDINATOR 1)144, 6-4/ G) /45,A)
RESPONSE REQUESTED BY / 2/22/9
DATE RESPONSE RECEIVED
Please > review the attached projects plans and respond with appropriate comments in the space below.
Indicate crucial concerns by checking the box next to the line(s) on which that concern is noted.
1
'cos ens Flom / 242/6 ,c am ./
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DRC review requested [ 1 Plan submittal requested
Plan check date:
Li Plan approved
Comments p,repared by:
09/08/89
City of Tukwila
PUBLIC WORKS DEPARTMENT
6300 Southcenter Boulevard
Tukwila, Washington 98188
(206) 433 -0179
1908 Ross A. Earnst, P.E. Director
gad-LJ
TO:
FROM
DATE:
M E M O R A N D U M
Jack Pace /Darren Wilson
Phil Fraser, Senior Engineer, Public Works Department
12/6/89
SUBJECT: Starbow Builders, Inc. (A.K.A. "Mustang ")
The following needs to be addressed by the applicant to
determine if and how development mitigates utilities and access
needs of the proposal:
4 Traffic Analysis Request per attached 11/13/89 Memo
(PHrrEggirrrErrAVirad and include the following:
A. Triangulation Study at 57th Avenue South
to 11/13/89 Memo, item 2A on page 2).
B. Plan Sheet dated 11/20/89 - 2 of 2: is in
to item 2B of 11/13/89 Memo - Comments:
(Reference
response
(1) Provide public intersection with curbs, turning
radius to the north and continuous sidewalk
(continuous sidewalk shown along west side
of 57th Avenue South is not appropriate, this
access shall look like public intersection).
(2) Provide continuous sidewalk on north side of
proposed South 150th Place to 57th Avenue South
to allow for pedestrian access /link.
(3) Handicapped ramps will be required for handicapped
access (per City Standards) at proposed 57th
South /South 150th Place.
(4) Identify slopes of proposed public South 150th
C. QUESTION: Are there any plans to extend the Dead End 7 e44
to South 150th in the future? er
2. Grade and Fill: Provide information related to
• impacts as identified in item No. 3 of page 2 of PRF
• 11/13/8 memo.
3. Water: Per my September 11, 1989 letter and 11/13/89 Memo,
Tukwila Public Works Department has required a looped
water system per rationale provided in these documents.
The 11/20/89 plan does not reflect this looped water
rystem. Therefore requested is the following:
A. Identify looped system tieing in 57th and S. 150th
Iwaterlines.
B. Identify water and sewer easements on the plan.
. Storm Drainage: Identify existing storm drainage easement
and proposed easement for relocated portion of existing
public storm drain on 11/20/89 plan.
5. Identify easement for proposed public sewer beyond public
street improvement.
6. Sewer and Storm: So that Public Works may determine if
each lot can be served by gravity sewer and Storm
Drainage Systems: Identify proposed building footprint
and lowest flood elevation for each lot along with
existing and posted elevations of existing and proposed
public storm and sewer systems.
If the appliant has any questions regarding the above, I will
be, happy to meet with you. (call Arline at 433 -0179 to set an
appointment.
PF /amc
xc: Ron Cameron
Ross Heller
Development File: Starbow Builders (A.K.A. Mustang)
Attachments (3)
M � a of Kai/ fA's 3 "V ll
Z-3 23, Y
•
•
q; 30 Pee 22, J yes
'WA/ ze)&;46-1-:-
as 4144A/6
f 4Af
11 -30 -89
Tukwila Junction Subdivision /Sepa comments
Subdivision concerns
1. road dev.% of slope
2. lot patterns
3.meet all zoning req.
4.concern w /lot 4
5.concern w /lot 8,12,1
steep slopes.
6.comp. /pin /policy
7.pub /private road
sec.17.24.030
8.sec.17.24.020
9.sect.17.24.040
item 5 a/b
10.loop system
4a.property corners Lo* $
@ intersections
r -o -w 25' radius
4b .corner lots req. et,
additional side
yard setbacks.
example:
30' req. for front
15' would be req.
for side yard setbacks.
Sepa concerns
add. info. traffic study
for sight dis. N. /S. of
S.150th st. /57th ave. S.
turning radius /per 17.24
grade /fill per ch. 70 ubc
proposed dev. in 15 % -39%
proposed dev. in 40 %+
tree removal in subdiv.
tree removal in road
sewer /ut.
% of grade /fill per lot
reveg. plan
CITY OF TUKWILA
DEPARTMENT OF COMMUNITY DEVELOPMENT
t�jlding .. Planning
ENVIRON ENTAL REVIEW
ROUG FORM
EPIC: ,29 —87
PROJECT 7i/'4 J'u46 74 O"
ADDRESS 6-y- Pp ,Je. --SO
DATE TRANSMITTED �i /ery
STAFF COORDINATOR �! -e L//J2s ) DATE RESPONSE RECEIVED
RESPONSE REQUESTED BY /./.2/5--//7
The attached environmental checklist was received regarding this project Please review and .
comment below to advise the responsible official regarding the threshold determination. The
. environmental review file is available in the Planning Department through above staff
::coordinator. Comments regarding the project you wish carried to the Planning Commission;..
Board of Adjustment and City Council should be submitted in the comment section below •
ITEM
COMMENT
t- O: z/ 6/8 c 1
Date: ial(c/
Comments prepared by: ,
09/14/89
MEMORANDUM
TO: JACK PACE /DARRENWILSON
FROM: PHIL FRASEI' SENIOR ENGINEER, PUBLIC WORKS DEPARTMENT
DATE: 11/13/89
SUBJECT: REQUEST FOR ADDITIONAL INFORMATION ON 'TUKWILA
JUNCTION' ENVIRONMENTAL REVIEW
PER MY DISCUSSION ON 11/13/89 WITH DARREN WILSON, THERE ARE THREE
AREAS THE DEVELOPER WISHES FURTHER CLARIFICATIONS OR COMMENTS
FROM PUBLIC WORKS:
1. WHY IS THE WATER SYSTEM REQUIRED TO BE A LOOPED SYSTEM?
2. CLARIFY CURRENT REQUIREMENTS RELATED TO TRAFFIC ANALYSIS.
3. WHAT ARE REQUIREMENTS OF GRADE AND FILL RELATES TO PUBLIC
WORKS''
I OFFER THE FOLLOWING RESPONSES TO THESE QUESTIONS:
1: WATER:
PUBLIC WORKS STAFF REQUIRED THE DEVELOPMENT TO PROVIDE A WATER
ANALYSIS PRE /POST RESERVOIR, TO ASSIST US IN MAKING A FINAL
DETERMINATION ON THE LEVEL OF PUBLIC WATER MAIN INFRASTRUCTURE
REQUIRED AS PART OF THIS DEVELOPMENT. THE B/7/89 HORTON DENNIS
WATER ANALYSIS INDICATED THAT FOR A PERMANENT PUBLIC WATER
SYSTEM, A LOOPED SYSTEM FROM 57TH AVENUE S. /S. 150TH STREET TO S.
150TH STREET, EAST OF MACADAM ROAD WATER SYSTEM IS NOT NEEDED TO
MEET DEVELOPMENT FLOW REQUIREMENTS; HOWEVER, A LOOPED SYSTEM IS
PREFERABLE AS IT PROVIDES FOR AN ADDITIONAL WATER SOURCE IN CASE
THE RELIED UPON WATER SOURCE FAILS.
AS I STATED IN MY SEPTEMBER 19, 1989 LETTER TO BRAD DECKER, "A
LOOPED SYSTEM IS ALWAYS MORE DESIRABLE TO PROVIDE ALTERNATIVE
WATER SOURCES IN CASE OF A SHUTDOWN OF A PORTION OF THE SYSTEM."
AFTER REVIEWING THE 8/7/89 HORTON AND DENNIS REPORT, FOR THIS
APPLICATION OF A PUBLIC WATER EXTENSION, PUBLIC WORKS STAFF
CONSIDERED THE APPLICATION OF A LOOPED WATER SYSTEM CRITICAL
ENOUGH TO MAKE IT A REQUIREMENT OF THE DEVELOPMENT.
(THE CITY'S ON FILE COMPREHENSIVE WATER PLAN DID NOT ANTICIPATE
THE PROPOSED ROAD /UTILITY OPENING AND THEREFORE DOES NOT REFLECT
A WATER EXTENSION IN THIS AREA).
• •
1.
ALSO, IN INITIAL REVIEW PROCESSES I HAVE REQUESTED MUSTANG
DEVELOPMENT TO OBTAIN APPROPRIATE SEWER AND WATER EASEMENTS, WITH
WATER EASEMENTS ACCESSING 57TH TO THE EAST AND S. 15OTH STREET
TO THE WEST AND NORTH OF THE PROPOSED DEVELOPMENT, IN THE EVENT
(AS IS NOW THE CASE) THAT A LOOPED WATER SYSTEM IS REQUIRED.
2. TRAFFIC:
REQUESTED TRAFFIC ANALYSIS WAS SUBMITTED TO PUBLIC WORKS AND WAS
REVIEWED THROUGH THE CITY ENGINEER'S OFFICE. PUBLIC WORKS STAFF
IS IN AGREEMENT WITH THE PRIMARY FINDINGS OF THE TRAFFIC
ANALYSIS, BUT REQUESTS FURTHER INFORMATION TO ASSURE THAT
ADEQUATE ACCESS WILL BE AFFORDED:
A. AT THE INTERSECTION OF THE PROPOSED ACCESS (APPROXIMATELY
S. 15OTH STREET) AND 57TH AVE. S. A SIGHT DISTANCE TRIANGU-
LATION STUDY OF BOTH THE NORTH AND SOUTH CORNERS OF THE
NEW ACCESS SHALL BE PROVIDED TO ASSURE ADEQUATE SIGHT
CONTROLS HAVE BEEN PROVIDED.
B. TO ASSURE ADEQUATE RIGHT OF WAY TO ACCOMMODATE TURNING
MOVEMENTS OF THE DESIGNED ROADWAY FOR EMERGENCY (FIRE)
VEHICLES, ETC. REQUESTED IS A PRELIMINARY LAYOUT OF THE
REQUIRED ROADWAY PAD, WITH SIDEWALKS, CURBS AND GUTTERS
SHOWN ON BOTH SIDES OF THE STREET BE PROVIDED. FOR
RIGHT OF WAY WIDTHS FOR THE PROPOSED STREET PAD AND
RIGHT OF WAY, YOUR TRAFFIC ENGINEER IS REFERRED TO
TUKWILA MUNICIPAL CODE. CHAPTER 17.24 AND ALSO THE FIRE
TRUCK TURNING RADII (SEE ATTACHED STREET AND ROADWAY
STANDARDS).
3. GRADE AND FILL REQUIREMENTS BY PUBLIC WORKS:
PUBLIC WORKS REVIEWS GRADE AND FILL PLANS BY DEVELOPMENTS TO
ASSURE TEMPORARY EROSION CONTROLS AND FACILITIES ARE ADEQUATE TO
CONTAIN THE DRAINAGE ON PRIVATE DEVELOPMENTS, AND ALSO TO ASSURE
TEMPORARY EROSION CONTROL DRAINAGE FACILITIES AND OPERATIONS
ALLOW THE DRAINAGE TO CONTINUE OFF -SITE AT ITS ALLOWED RUNOFF,
BUT NOT DISCHARGE ANY SILT OR DEBRIS FROM THE SITE INTO
DOWNSTREAM PROPERTIES OR STORM DRAINAGE SYSTEMS FOR THE LIFE OF
THE GRADE AND FILL OPERATION.
PUBLIC WORKS REQUESTS THAT YOUR GRADE AND FILL PLANS BE SUBMITTED
IN SUCH A MATTER AS TO MEET ALL REQUIREMENTS OF CHAPTER 70 OF THE
UNIFORM BUILDING CODE.
THE BUILDING DIVISION OF D.C.D. ISSUES THE GRADE AND FILL PERMIT.
YOU SHALL SUBMIT YOUR PLANS TO THE BUILDING DEPARTMENT SO THAT
THEY MAY COORDINATE THEIR PLAN REVIEW.
VEGETATION PRESERVATION /REMOVAL AND /OR REPLACEMENT REQUIREMENTS
OF THE PLANNING DEPARTMENT SHALL BE REFLECTED ON THE GRADE AND
• •
FILL PERMIT TO THE DEGREE THAT PLANS WHICH MUST BE PRESERVED OR
ARE ALLOWED" TO BE REMOVED IS CLEARLY OUTLINED ON THE GRADE AND
FILL PLAN.
FOR ALL PROPOSED PUBLIC INFRASTRUCTURE, THE PUBLIC WORKS
DEPARTMENT WILL ISSUE A SERIES OF STREET USE AND UTILITY PERMITS
UNDER WHICH EROSION CONTROL AND OFF -SITE HAULING REQUIREMENTS
SHALL BE REQUIRED.
XC. RON CAMERON
DUANE GRIFFIN
DEVELOPMENT FILE: TUKWILA JUNCTION (A.K.A. MUSTANG
DEVELOPMENT)
--76,191ret
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•
PRINTED IN U.S.A.
CITY OF TUKWILA
DEPARTMENT OF COMMUNITY DEVELOPMENT
... . ............... .
TO B Building
ENVIRONMENTAL REVIEW
FiOUTIOC,; FORM
EPIC:
Planning Pub Wks Fire
Police fl Parks / ea
PROJECT //466)//4 T4nc ",dry
ADDRESS mot'? Awe. S /S i.SD /°L
DATE TRANSMITTED /02,/fr.7
STAFF COORDINATOR
5i /101/4)/s/ell
RESPONSE REQUESTED BY . /Z /477
DATE RESPONSE RECEIVED
The attached environmental checklist was received regarding this project. Please review and
comment below to advise the responsible official regarding the threshold determination. The
environmental review file is available in the Planning Department through the above: staff
coordinator. Comments regarding the project you wish carried to the Planning Commission,
Board of Adjustment and City Council should be submitted in the comment section below.
ITEM COMMENT
Date: Comments prepared by: ,
os/1aea
CITY OF TUKWILA
DEPARTMENT OF COMMUNITY DEVELOPMENT
ENVIRONMENTAL REVIEW
ROUTING FORM
EPIC:
T4;
Buildirt 9
:
Planning
g
Pub Wks
Fire
Ll Police
ri Parks /Rec
PROJECT j (46e)//4 3�nc -4y7 S4lti/6)i_5/601
ADDRESS 5-?- $ eve _59 /�S0 i3-0 /°� •
DATE TRANSMITTED /Z2/17-7
STAFF COORDINATOR�e /' j /Sad DATE RESPONSE RECEIVED
RESPONSE REQUESTED BY 9/Z 47
The attached environmental checklist was received regarding this project. Please review and
comment below to advise the responsible official regarding the threshold determination. The
environmental review file is available in the Planning Department through the above staff
coordinator. Comments regarding the project you wish carried to the Planning Commission,
Board of Adjustment and City Council should be submitted in the comment section below.
ITEM COMMENT
Date: Comments prepared by: ,
09/14/89
CITY OF TUKWILA
6200 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON 98188
September 19, 1989
Bret Cummock
Esm Inc.
941 Powell Avenue S.W.
Suite 100
PHONE # (206) 433 -1800
Cary L. VanDusen, Mayor
RE: TUKWILA JUNCTION PRELIMINARY PLAT 88 -1 -SUB AND SEPA REVIEW
Dear Bret:
This letter is to confirm our telephone conversation on September
19, 1989. The City cannot start project review until all
materials for a complete application have been received. Thebe
materials are identified in the preliminary plat application form
and specifically listed in the City's letter of January 6,1989.
In addition to this, a separate SEPA checklist on the preliminary
plat must . be received.
This project has been tentatively scheduled for Planning
Commission review at its November 16th meeting. All materials
must be received by September 22nd, which is the normal submittal
deadline 45 days prior to the meeting.
All issues must be resolved 30 days prior to the Planning
Commission meeting. If the application package is,not completed
by September 22nd deadline, then the project will be rescheduled
for the next available Planning Commission meeting.
Should you have any questions regarding this project please
contact immediately me at 433 -1845.
Thank You
arren letor
Assistant Planner
cc: V. Umetsu, Associate Planner
Dads.A ►.,fi
1908
September 19, 1989 �+
Brad Decker, Partne
Mustang Investment Croup
2366 Eastlake Avenua East
Suite 433
Seattle, WA 98102
REi Fireflow Analysis for Tukwila Junction
(reference to Horton Dennis letter of August 7, 1989)
I+
Dear Brad:
The Public Works Department is in receipt of the August 7, 1989
letter from Horton Dennis which includes a report on the fireflow
analysis for the Tukwila Junction and the potential to connecting
the water line in South 150th to the 57th Avenue South water
system. The conclusion of this fireflow analysis is that an 8"
dead end line would} provide sufficient water flow for fire and
domestic needs for'dthe development and that the loop is not
necessary. However, the report goes on to indicate that an
additional water sou'' ce such as the new reservoir added to the west
side of the system povides cause for such a looped system. Public
Works staff has reviewed this and considers that a looped system
is required as the rservoir is currently scheduled to be in place
in 1990. .A looped;Isystem is always more desirable to provide
alternative water sohrces in case of a shutdown of a portion ofthe
City of Tukwila
PUBLIC WORKS DEPARTMENT
6300 Sou; hcenter Boulevard
Tukwila,' !,ashington 98188
(206) 433b 179
Ross A. Ear P, P.E. Director
system
Therefore, you are 3"' quested to include a looped system from South
150th /57th Avenue South in your water system extension as part of
your proposed devel pment. If you have any questions or I can be
of further assistan b do not hesitate to call me at 433 -0179.
Sincerely,
Phil Fraser, Senior ngineer
xc: Ron Cameron
Daniel L. Mats
Development fi
Enclosures: 2
Horton Dennis
Tukwila Junction
D13 MUSTARO.LTR
A
NORTON DENNIS & ASSOATES, INC.
CONSULTINGINGINEERS
320 Seco d Ave. South
Kirkland, W 98033 -6687
(2 i6) 822 -2525
JOB '
Ti;,kI 4101eT/ L 110A/ J '1.8V66,.00
SHEET NO. / OF /
CALCULATED BY ).1- -n% DATE 8/7 /8 ?
CHECKED BY A /i/ / DATE
SCALE
Alb 76 c/11.
ENVIRONMENTAL CHECKLIST
A. BACKGROUND
1. Name of proposed project, if applicable:
Tukwila Junction
City of Tukwila, Washington
2. Name of applicant:
Starbow Builders, Inc.
rjl= �? IN L.
i 'N1 1 •
SEP 211989
cr '7 OF- T!..i otviLl!
• Epic - -LI -91
3. Address and phone number of applicant and contact person:
CONTACT PERSON:
Bret A. Cummock
ESM, Inc.
941 Powell Ave. S.W.
Suite 100
Renton, WA 98055
228 -5628
OWNER:
Starbow Builders, Inc.
31849 Pacific Hwy S.
Suite 141 -M
Federal Way, WA 98003
941 -1092
4. Date checklist prepared:
September 18, 1989
5. Agency requesting checklist:
City of Tukwila
6. Proposed timing or schedule (including phasing, if applicable):
Pending review and approval of Public Works, Planning Deptartment, and other
City agencies. Site improvement work is anticipated to commence in summer of
1990 with anticipated completion to be spring of 1991. Residential construction
will occur after this date; however, no schedule has been established at this time.
7. Do you have any plans for future additions, expansions, or further activity
related to or connected with this proposal? If yes, explain.
No
8. Ust any environmental information you know about that has been prepared,
or will be prepared, directly related to this proposal.
Geotechnical Study
Traffic Study
Water Pressure Study
2
9. Do you know whether applications are pending for governmental approvals
of other proposals directly affecting the property covered by your proposal?
If yes, explain.
None known.
10. List any government approvals or permits that will be needed for your
proposal, if known.
City of Tukwila Plat approval
City of Tukwila Public Works approval and permits
11. Give brief, complete description of your proposal, including the proposed
uses and the size of The project and site. There are several questions later
in this checklist that ask you to describe certain aspects of your proposal.
You do not need to repeat those answers on this page. (Lead agencies may
modify this form to include additional specific information on project
description.)
The proposal is for the creation of a new subdivision comprising 17 lots situated
on two contiguous parcels of R -1 -7.2 zoned property with a total site area of 3.81
acres more or less.
12. Location of the proposal. Give sufficient information for a person to
understand the precise location of your proposed project, including a street
address, if any, and section, township, and range, if known. If a proposal
would occur over a range of area, provide the range or boundaries of the
site(s). Provide a legal description, site plan, vicinity map, and topographic
map, if reasonably available. While you should submit any plans required
by the agency, you are not required to duplicate maps or detailed plans
submitted with any permit applications related to this checklist.
The site lies on the west side of 57th Avenue South beginning approximately 1020
feet south of the intersection of 57th Avenue South and South 147th Street.
Legal Description: Parcel B, City of Tukwila Short Plat Number 84- 20 -SS,
recorded under Recording Number 8407190829, said short plat being a
subdivision of a portion of lots 19 and 20, Brookvale Garden Tracts, according to
the plat thereof recorded in Volume 10 of Plats, Page 47, in King County,
Washington.
TOGETHER WITH: That portion of lot 20 and the South 8 feet of lot 19, Brookvale
Graden Trafts, according to the plat thereof recorded in Volume 10 of Plats,
Page 47, in King County, Washington, lying Westerly of the Westerly boundary of
Parcel A and B of City of Tukwila Short Plat Number 84- 20 -SS, recorded under
Recording Number 8407190829.
3
B. ENVIRONMENTAL ELEMENTS
1. EARTH
a. General description of the site (circle one): flat, rollin steep slopes,
mountainous, other. o
�A �1� Variable slopes between 10% and 20% for majority of site.
01itel b. What is the steepest slope on the site (approximate percent slope)?
D95 `Ir` Greater than 40% in a small area at the southwest corner of the site.
9 c. What general types of soils are found on the site (for example, clay, sand,
gravel, peat, muck)? If you know the classification of agricultural soils,
specify them and note any prime farmland?
Site is underlain by UR Urban Land Soils based upon the USDA soil survey maps.
d. Are there surface indications or history of unstable soils in the immediate
vicinity? If so, describe.
None noted on site.
Describe the purpose, type, and approximate quantities of any filling or
grading proposed. Indicate source of fill.
Anticipated grading and filling will be as required to provide construction of new
residential streets and underground utilities along new street rights -of -way.
Maximum width of clearing and grading is anticipated not to exceed 30' from
centerline of right -of -way in either direction. Some limited grading and clearing is
anticipated for utility easements.
Could erosion occur as a result of clearing, construction, or use? If so,
generally describe.
Yes, clearing and construction associated with new residential construction
activities, (if due care is not exercised) could contribute to the likelihood of
erosion.
g. About what percent of the site will be covered with impervious surfaces
after project construction (for example, asphalt or buildings)?
Approximately 50% of the site will ultimately be covered with streets and buildings.
h. Proposed measures to reduce or control erosion, or other impacts to the
earth, if any:
All work will be conducted in compliance with the appropriate City of Tukwila
ordinances with regard to temporary erosion control.
W
'143
4`r
N/A
• 1
2. AIR
4
a. What types of emissions to the air would result form the proposal (i.e., dust,
automobile, odors, industrial wood smoke) during construction and when
the project is completed? If any, generally describe and give approximate
quantities, if known.
Some dust and equipment fumes during construction of street, utilities and
residential structures. It is anticipated that most residences will contain wood
burning fireplaces. Automobile emissions can be expected when complete. (17
to 34 vehicles anticipated).
b. Are there any off -site sources of emissions or odor that may affect your
proposal? If so, generally describe.
None known.
c. Proposed measures to reduce or control emissions or other impacts to air,
if any:
N/A
3. WATER
a. Surface
1) Is there any surface water body on or in the immediate vicinity of the site
(including year -round and seasonal streams, saltwater, lakes, ponds,
wetlands)? If yes, describe type and provide names. If appropriate, state
what stream or river it flows into.
No
2) Will the project require any work over, in, or adjacent to within 200 feet) of
the described waters? If yes, please describe and attach available plans.
No
3) Estimate the amount stjaand dredge material that would be placed in or
removed from surface water or wetlands and indicate the area of the site
that would be affected. Indicate the source of fill material.
4) Will the proposal require surface water withdrawals or diversions? Give
general description, purpose, and approximate quantities if known.
No
5) Does the proposal lie within a 100 -year floodplain? If so, note location on
the site plan.
No
b.
1)
5
Does the proposal involve any discharges of waste materials to surface
waters? If so, describe the type of waste and anticipated volume of
discharge.
Possible pollutants contained in run -off from vehicular parking will be intercepted
in the storm drainage control system.
Ground
Will ground water be withdrawn, or will water be discharged to ground
water? Give general description, purpose, and approximate quantities if
known.
No
2) Describe waste material that will be discharged into the ground from septic
tanks or other sources, if any (for example: Domestic sewage: industrial,
containing the following chemicals..; agricultural; etc.) Describe the general
size of the system, the number of such systems, the number of houses to
be served (if applicable), or the number of animals or humans the system(s)
are expected to serve.
c.
1)
N/A
Water Runoff (including storm water):
Describe the source of runoff (including storm water) and method of
collection and disposal, of any (include quantities, if known). Where will this
water flow? Will this water flow into other waters? If so, describe.
Storm water and domestic water from residential street and landscaping is the
only anticipated source of run -off. Storm water collection on impervious surfaces
will be directed to the storm drainage system.
2) Could waste material enter ground or surface waters? If so, generally
describe.
d.
Pollutants from parked vehicles may collect on impervious surfaces and be
washed into the storm drainage system.
Proposed measures to reduce or control surface, ground, and runoff water
impacts, if any:
Storm drainage will be provided in conformance with City of Tukwila ordinances
and regulations.
4.
a.
xtv C
o\
tiffiAlv
Q 00"
c.
PLANTS
X deciduous tree: alder, maple, aspen or other
X evergreen tree: fir, cedar, pine, other
X shrubs
X _ grass
pasture
crop or grain
wet soil plants; cattail, buttercup, bullrush
skunk cabbage, other
water plants: water lily, eelgrass, milfoil, other
other types of vegetation
What kind and amount of vegetation will be removed or altered?
Some clearing of native trees, shrubs and ground cover will be required to
provide new residential streets and underground utilities. Maximum anticipated
area to be cleared should not exceed 25% for plat improvements. Clearing of
individual building sites will be as is typical for residential construction.
List threatened or endangered species known to be on or near the site.
None known.
Proposed landscaping, use of native plants, or other measures to preserve
or enhance vegetation on the site, if any:
Clearing of this site will initially be limited to that necessary for plat construction.
Landscaping of individual lots is anticipated to be that which is typical of a
single - family subdivision.
5. ANIMALS
a.
b.
c.
d.
Circle any birds and animals which have been observed on or near the site
or are known to be on or near the site:
birds: hawk, heron, eagle on • bir • , other:
mammals: deer, bear, elk, beaver, other:
fish: bass, salmon, trout, herring, shellfish, o er:
List any threatened or endangered species known to be on or near the site.
None known.
Is the site part of a migration route? If so, explain.
No
Proposed measures to preserve or enhance wildlife, if any:
None anticipated with the exception of water quality measures.
• •
7
6. ENERGY AND NATURAL RESOURCES
a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be
used to meet the completed project's energy needs? Describe whether it
will be used for heating, manufacturing, etc.
The use and incorporation of electrical, gas or oil - fueled heating along with wood
burning stoves and fireplaces associates with future residential construction is
anticipated.
b. Would your project affect the potential use of solar energy by adjacent
properties? If so, generally describe.
No
c. What other kind of energy conservation features are included in the plans of
this proposal? List other proposed measures to reduce or control energy
impacts, if any:
None
7. ENVIRONMENTAL HEALTH
a. Are there any environmental health hazards, including exposure to toxic
chemicals, risk of fire and explosion, spill, or hazardous waste, that could
occur as a result of this proposal? If so describe.
Yes, those commonly associated with construction of a project of this type and
the operation of construction equipment.
1) Describe special emergency services that might be required.
None anticipated.
2) Proposed measures to reduce or control environmental health hazards, if
any:
None
b. Noise
1) What types of noise exist in the area which may affect the project (for
example: traffic, equipment, operation, other)?
Traffic noise from 1 -5 Freeway is anticipated to have minimal impact on the site.
2) What types and levels of noise would be created by or associated with the
project on a short-term or a long -term basis (for example: traffic,
construction, operation, other)? Indicate what hours noise would come
from the site.
Typical noise associated with construction of streets, utilities, and residential
construction may be anticipated during normal working hours. Vehicular noises
associated with typical residential developments may be anticipated and would
• •
8
occur at times as is consistent with this type of development. Some vehicular
noise from the 1 -5 Freeway would be anticipated to occur during working and rush
hours.
3) Proposed measures to reduce or control noise impacts, if any:
None
8. LAND AND SHORELINE USE
a. What is the current use of the site and adjacent properties?
Site is currently two large tracts of ground with two single - family residences;
surrounding uses are single- family residential to the north and east, apartments to
the west and south, water reservoir under construction adjacent to the south.
b. Has the site been used for agriculture? If so, describe.
Possibly as pasture for horses, etc.
c. Describe any structures on the site.
Two older single - family residences.
d. Will any structures be demolished? If so, what?
Yes, the two existing residences.
e. What is the current zoning classification of the site?
R- 1 -7.2, per the City of Tukwila.
f. What is the current comprehensive plan designation of the site?
City of Tukwila Comprehensive Plan designates the area as single - family
residential, the current zoning is R -1 -7.2 per the City of Tukwila.
g. If applicable, what is the current shoreline master program designation of
the site?
N/A
Has any part of the site been classified as "environmentally sensitive" area.
If so specify.
p W 4 L. 3) IbPfl" L D.Q.tA acco ed. n9 -ro -tk,.. fl d `S torn P Rita
SLoPr's)-
i. Approximately how may people would reside or work in the completed
project?
17 - SFR at 2.75 persons /unit = 47 persons
9
j. Approximately how many people would the completed project displace?
2 - SFR at 2.75 persons /unit = 5 persons
k. Proposed measures to avoid or reduce displacement impacts, if any:
None
I. Proposed measures to ensure the proposal is compatible with existing and
project land uses and plans, if any:
The proposed plat is in conformance with the standards set forth by the City of
Tukwila Subdivision Ordinance.
9. HOUSING
a. Approximately how many units would be provided, if any? Indicate whether
high, middle, or low- income housing.
17 single - family detached, middle income.
b. Approximately how many units, if any, would be eliminated? Indicate
whether high, middle, or low- income housing.
2 single - family detached, middle income.
c. Proposed measures to reduce or control housing impacts, if any.
None
10. AESTHETICS
a. What is the tallest height of any proposed structure(s), not including
antennas: what is the principal exterior building material(s) proposed?
30 feet - (consistent with R -1 -7.2 zoned areas)
b. What views in the immediate vicinity would be altered or obstructed?
Obstruction of any views in the immediate vicinity is anticipated to be minimal and
will be dependent to a large degree on the siting of individual residential units
�� _ within the subdivision. any:
Jt' �'�` U Proposed measures to reduce or control aesthetic impacts, if any:
0'o� Existing trees and vegetation will be retained to the extent possible.
gyp' 11. LIGHT AND GLARE
a. What type of light or glare will the proposal produce? What time of day
would it mainly occur?
Light from individual dwelling units; residential street lighting; and car headlights
during hours of darkness; chiefly between 7 pm and 12 pm.
• •
10
b. Could light or glare from the finished project be a safety hazard or interfere
with views?
No
c. What existing off -site sources of Tight or glare may affect your proposal?
None known.
d. Proposed measures to reduce or control light and glare impacts, if any:
ti0 C D v''"�
Street luminaires will be designed to control impacts. 'ivc �,t6•
12. RECREATION Pk kr°'
a. What designated and informal recreational opportunities are in the
immediate vicinity?
Fort Dent Park, Tukwila Park
b. Would the proposed project displace any existing recreational uses? If so,
describe.
None known.
c. Proposed measures to reduce or control impacts on recreation, including
recreation opportunities to be provided by the project applicant, if any:
None
13. HISTORIC AND CULTURAL PRESERVATION
a. Are there any places or objects listed on, or proposed for, national, state, or
local preservation registers known to be on or next to the site? If so,
generally describe.
None known.
b. Generally describe any landmarks or evidence of historic, archaeological,
scientific, or cultural importance known to be on or next to the site.
None known.
c. Proposed measures to reduce or control impacts, if any:
None proposed.
14. TRANSPORTATION
a. Identify public streets and highways serving the site, and describe
proposed access to the existing street system. Show on site plans, if any.
Existing street serving the site is 57th Avenue South.
b. Is site currently served by public transit? If not, what is the approximate
distance to the nearest transit stop?
r Transit service is available along Interurban Avenue and shuttle service is
<)2" available along Macadam Road.6f- 1(l-
c. How many parking spaces would the completed project have? How many
would the project eliminate?
11
2 off - street parking spaces per unit (34) will be provided per code in addition to
that available on residential streets.
d. Will the proposal require any new roads or streets, or improvements to
existing roads or streets, not including driveways? If so, generally describe
(indicate whether public or private).
Yes, a new public residential street will be provided. This will connect to existing
57th Avenue South.
e. Will the project use (or occur in the immediate vicinity of) water, rail, or air
transportation? If so, generally describe.
No
f. How many vehicular trips per day would be generated by the completed
project? If known, indicate when peak volumes would occur.
Using 10 trips per day, anticipated ADT is expected to be 170 trips. AM and PM
peaks will be as is typical for a development of this nature.
g. Proposed measures to reduce or control transportation impacts, if any:
None
15. PUBLIC SERVICES
a. Would the project result in an increased need for public services (for
example: fire protection, police protection, health care, schools, other)? If
so, generally describe.
Yes, proposal will result in need for fire and police protection. Proposal will also
include school age children.
b. Proposed measures to reduce or control direct impacts on public services,
if any:
N/A
16. UTILITIES
a. Circ - ' ' - curr - • - ail . • - -t t site:112arMitigM r'at
anit • sewer, eptic system, o er.
elephone
Ito 9000/4-, g6)4to
q\a,
• 411
12
b. Describe the utilities that are proposed for the project, the utility providing
the service, and the general construction activities on the site or in the
immediate vicinity which might be needed.
Sanitary Sewer - City of Tukwila - Not currently available at site; however,
easements have been obtained to extend sewer service to the site.
Electrical Service - Puget Power & Light
Water and Sewer - City of Tukwila
Telephone - U.S. West
Gas - Washington Natural Gas
Construction will entail connection of new utilities to existing services located in
the vicinity.
New fire hydrants, if required, will be provided within the proposed development.
C. SIGNATURE
The above answers are true and complete to the best of my knowledge. I
understand that the lead agency is relying on them to make its decision.
ees-ii,F 41A 11.6
Pf.�v.i
Signature:
Date Submitted:
EC4:EC3
['Horton DC 111118 (re Associates, ssoclat!es, inc.
Consulting ting .l.nglneers
August 29, 1989
Mr. Phil Fraser, Senior Engineer
Tukwila Public Works Department
6200 Southcenter Boulevard
Tukwila, Washington 98188
SUBJECT: FIREFLOW ANALYSIS FOR TUKWILA JUNCTION
HDA JOB 8466.00
Dear Mr. Fraser:
At the request of Mr. Brad E. Decker of the Mustang Investment Group, we
have completed the computer analyses of available fireflow at the proposed
residential housing area located north of South 152nd Street and immediately west
of 57th Avenue South in Tukwila. For each test, we have assumed a peak hourly
background flow of 5,040 gpm for the Tukwila Water System.
RESULTS OF COMPUTER SIMULATED FIREFLOWS ON TUKWILA WATER SYS.
Test Condition Flow and Residual Pressures
1. Peak Flow condition
plus fireflow with new
8 inch dead end line to FH #2
in new proposed development.
2. Peak Flow condition
plus fireflow with new
8 inch dead end line to FH #1
in new proposed development.
3. Peak Flow condition
plus fireflow at FH #1, with new
8 inch line looped through new
proposed development.
At Tukwila Junction
Residential Housing Area
• (NODE 417)
(NODE 417)
Q =2200 gpm
P =30.9 psi
(NODE 416)
Q =2350 gpm
P =30.0 psi
(NODE 416)
Q =3100 gpm
P =30.2 psi
At Top of N. H i l l
(NODE 46)
0 =30 gpm
P =22.2 psi
0 =30 gpm
P =21.4 psi
0 =30 gpm
P =27.8 psi
320 Second Avenue South, Kirkland, Washington •ton 98U.13-6b87 • Phone 8)2-).-3
It is clear that a new 8 inch dead end line would be more than adequate to
supply the required 1000 gpm and 30 psi residual at each hydrant. A loop is not
necessary and proves to be of little or no advantage, unless a new source such as
a reservoir is located on the west side of the system along Macadam Road near
South 150th Street.
The available fireflow at the proposed development with the proposed north
hill reservoir and north hill pressure zone in place will depend upon the piping
arangement and booster pumping station capacity actually constructed.
If we can provide additional service, please let us know.
Sincerely,
HORTON DENNIS & ASSOCIATES, INC.
Alan Meyers, P.E.
DLM:dlm
vcc: Mr. Brad E. Decker
Horton Dennis & Associates, Inc. • ConsultinL. I n ineers • Kirkland,. Washington
TUKWILA
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GEOTECH •
CONSULTANTS
13256 N.E. 20th St. (Northup Way), Suite 16
Bellevue, WA 98005
(206) 747-5618
(206) 343 -7959
Mustang Investment Group
P.O. Box 22669
Seattle, Washington 98122
Attention: Brad E. Decker
Subject: Geotechnical Engineering Study
Tukwila Junction Subdivision
Tukwila, Washington
Gentlemen:
•
August 28, 1989
JN 89296
We are pleased to present this geotechnical engineering report
for the proposed residential subdivision located south of the
South 150th Street right -of -way and west of 57th Avenue South
in Tukwila, Washington. The purpose of our work was to
explore site conditions and provide earthwork and foundation
design criteria. The work was authorized by your acceptance
of our proposal, P -9026 dated March 7, 1989.
The subsurface conditions of the proposed development site
were explored with six test pits. We found the southern
portion of the site to be underlain at shallow depths by hard
sandstone. The northern portion of the property is underlain
by loose to dense silty sand with cobbles. In our opinion
single family residential structures may be constructed using
conventional spread footing foundations placed on the medium -
dense to dense, native soils, or on the hard native sandstone,
underlying the site. The on -site soils are sensitive and
easily disturbed in the presence of excess moisture.
The attached report contains a more detailed discussion of the
study and recommendations. If there are any questions, or if
we can be of further service, please contact us.
Respectfully submitted,
GEOTECH CONSULTANTS, INC.
e01,14iW
ames R. Finley, Jr. P.E.
Principal
GEOTECHNICAL ENGINEERING STUDY
PROPOSED TUKWILA JUNCTION SUBDIVISION
TUKWILA, WASHINGTON
This report represents the results of our geotechnical
engineering study for the site of a proposed residential
subdivision in Tukwila, Washington. The site is located south
of the 150th Street right -of -way and west of 57th Avenue
South. The general location of the site is illustrated on the
Vicinity Map, Plate, 1.
Based on a preliminary. plot plan furnished to us, we
anticipate that the development will consist of seventeen
single family residences and construction of South 150th Place
to service the lots. Development of the property is in the
planning stage and, therefore, plans were not available to us.
The site plan given to us included the lot locations, and
provided topographic information.
SITE CONDITIONS
SURFACE
The proposed subdivision site is located several blocks north
of the Southcenter Shopping center, and about two blocks east
of Interstate 5, in Tukwila. The main body of the property is
a rectangular shaped tract measuring approximately 390 feet by
340 feet. A smaller, rectangular "panhandle" measuring about
250 feet by 160 feet extends from the northeast corner of the
larger body. The tract is situated on a west facing, gently
sloping hillside. Two houses, one in the northeast corner of
the main body and the other in the eastern portion of the
"panhandle ", occupy the site. Except for the westernmost
ninety to one hundred feet, which is wooded and densely
overgrown with underbrush, the remainder of the property is
well- maintained yard area associated with the two houses.
$UBSURFAC&
The subsurface conditions were explored by six test pits at
the approximate locations shown on the Test Pit Location
Mustang Investment Group
August 28, 1989
JN 89296
Page 2
Plan, Plate 2. The field exploration program was based upon
the proposed construction, site topography, the required
design criteria, subsurface conditions revealed during
excavation, the scope of work outlined in our proposal, and
time and budget constraints.
The test pits were excavated on August 14, 1989 with a rubber -
tired backhoe owned, and operated by Evans Brothers Excavating.
A geotechnical engineer from our staff observed the excavation
process, logged the test pits, and obtained representative
samples of the soils encountered. "Grab" samples of selected
subsurface soils were collected from the backhoe bucket
cuttings. The Test Pit Logs are attached to this report as
Plates 3 through 6.
The uppermost soil unit consists of loose to medium dense,
brown, silty, fine -to- medium grained sand. This weathered
topsoil unit was found to a depth two to six feet. In the
northern portion of the site the topsoil is underlain by dense
to very dense, brown silty, gravelly sand. The test pit in
the northwest corner of the site encountered a four to five
foot thick layer of dense, tan, clayey silt between the upper
loose sand and the lower, dense sand unit. The topsoil in the
southern part of the property is underlain, at a depth of
three to five feet, by hard sandstone with ocassional granite
boulder inclusions.
The final logs represent our interpretations of the field logs
and laboratory tests. The stratification lines on the logs
represent the approximate boundary between soil types. In
actuality, the transition may be gradual. The relative
densities and moisture descriptions indicated on the test pit
logs are interpretative descriptions based on the conditions
observed during the excavation. The logs should be reviewed
for specific subsurface information at the locations tested.
GROUNDWATER
No groundwater seepage was observed in any of the test pits.
It should be noted, however, that groundwater levels vary
seasonally with rainfall and other factors. We anticipate
that perched groundwater could be found between the near
surface weathered soil and the underlying less permeable soils
and rock in wet weather periods.
GEOTECH CONSULTANTS, INC.
Mustang Investment Group
August 28, 1989
CONCLUSIONS AND RECOMMENDATIONS
GENERAL
JN 89296
Page 3
The subsurface soil conditions were explored with six test
pits in which we encountered dense, native soils and sandstone
beneath two to six feet of loose to medium dense soil. In our
professional opinion, based on a geotechnical engineering
standpoint, the proposed single family houses may be
constructed using conventional spread footing foundations
placed on the medium dense to dense sandy soils or on the
hard, native sandstone. Foundations placed on bedrock will
require scarifying and removal of the fragments from the
bearing surfaces. To reduce the risk of differential
settlement we discourage placing a foundation for an
individual structure on both the upper native soils and on the
sandstone bedrock. Where possible, we recommend
overexcavating to place the entire foundation system on the
bedrock if a substantial portion of it is to be founded on the
bedrock surface.
We believe the hillside is stable and will remain so given
adequate precautions during the earthwork and drainage phases
of the project. We point out that the on -site soils are
generally moisture sensitive. Mass grading will be difficult
in the wet season for this reason, and use of on -site soils
for structural fill or for use as backfill will be difficult
or impossible unless the soil can be areated to achieve the
optimum moisture content. In the southern half of the
property we encountered hard sandstone at shallow depths
(three to four feet) and occasionally granite, boulders at the
soil /sandstone contact. We anticipate that deep utilities in
this portion of the site will encounter the sandstone and that
it will become more competent with depth. Utility contractors
should be aware that trenching may increasingly difficuly
with depth.
FOUNDATIONS
The proposed structures may be supported on conventional
continuous and spread footings bearing on the dense native
soils underlying the topsoil or on structural fill placed
above competent native soils. Overexcavation of soil below
the footing may be required on some lots depending on final
site grades. Fill placed under footings should extend
outwards from the edge of the footings at least a distance
equal to the depth of fill underneath the footings. Exterior
GEOTECH CONSULTANTS, INC.
Mustang Investment Group
August 28, 1989
JN 89296
Page 4
footings should be bottomed at a minimum depth of twelve (12)
inches below the lowest adjacent outside finish grade.
Footings founded on competent native soils may be designed for
an allowable soil bearing capacity of two thousand (2000)
pounds per square foot (psf). Footings bearing on structural
fill may also be designed for a bearing pressure of 2000
thousand (2000) psf. Continuous and individual spread
footings should have minimum widths of twelve (12) and
eighteen (18) inches, respectively. A one -third increase in
the above bearing pressures may be used when considering short
term wind or seismic loads. For the above design criteria, it
is anticipated that total settlement of footings founded on
competent, native soils or on structural fill will be about .
one -half inch, with differential settlement of less than one -
half inch.- Almost all settlement due to dead loads from the
building structure should occur during construction.
Lateral loads due to wind or seismic forces may be resisted by
friction between the foundations and the bearing soils, or by
passive earth pressure on the foundations. For the latter,
the foundations must either be poured "neat" against the
existing soil or the wall backfill must be compacted
structural fill. A coefficient of friction of 0.40 may be
used between the structural foundation concrete and the
supporting subgrade. The passive resistance of undisturbed
native soils and well compacted fill may be taken as equal to
the pressure of a fluid having a density of three hundred
(300) pounds per cubic foot (pcf).
SLAB -ON -GRADE FLOORS
Slab -on -grade floors may be supported on undisturbed competent
native soils or on structural fill. The slab should also be
provided with a minimum of four (4) inches of free draining
sand or gravel. In areas where moisture is undesirable, a
vapor barrier such as a 6 -mil plastic membrane should be
placed beneath the slab.
PERMANENT RETAINING AND FOUNDATION WALLS.
Retaining and foundation walls should be designed to resist
lateral earth pressures imposed by the soils retained by these
structures. The following recommendations are for walls less
than twelve feet high which restrain level backfill. If
higher walls are desired, or if the backfill is sloping
GEOTECH CONSULTANTS, INC.
Mustang Investment Group
August 28, 1989
JN 89296
Page 5
uphill, then we will need to be given the wall dimensions and
slope of the backfill in order to provide the appropriate
design earth pressures.
Walls restraining level backfill, that are designed to yield
an amount equal to at least 0.002 times the wall height, can
be designed to resist the lateral earth pressure imposed by an
equivalent fluid with a unit weight of thirty -five (35) pounds
per cubic foot (pcf). If walls are to be restrained at
the top from free movement, a uniform force of one hundred
(100) pounds per square foot (psf) should be added to the
equivalent fluid pressure force. For calculating the base
resistance to sliding, we recommend using a passive pressure
equivalent to that exerted by a fluid having a density of
three hundred (300) pcf and a coefficient of friction of 0.40.
These values assume that no hydrostatic pressures act behind
the wall and that no surcharge slopes or loads will be placed
above the walls. If these conditions exist, then those
pressures should be added to the above lateral pressures.
Retaining and foundation walls should be backfilled with
compacted free - draining granular soils containing no organics.
The wall backfill should contain no more than 5 percent silt
or clay and no particles greater than four inches in diameter.
The percentage of particles passing the No. 4 sieve should be
between 25 and 70 percent. The purpose of the backfill
requirements is to assure that the design criteria for the
retaining wall is not exceeded because of a build -up of
hydrostatic pressure behind the wall. Where the backfill is
to support walks or other slabs, we recommend that the
backfill consist of clean sand and gravel as this soil would
be easier to compact in the excavation prism than siltier
soils. Also, these soils will provide drainage behind the
wall. The top foot to eighteen inches of the backfill should
consist of a relatively impermeable soil or topsoil, or the
surface should be paved.
SITE DRAINAGZ
We recommend the use of footing drains at the base of all
footings and earth retaining walls. Roof and surface water
drains must be kept separate from the foundation drain system.
The footing drains should be surrounded by at least six inches
of one - inch -minus washed rock. The rock should be wrapped
with non -woven geotextile filter fabric (Mirafi 140N, Supac
4NP, or similar material). At the highest point, the
perforated pipe invert should be at least as low as the bottom
GEOTECH CONSULTANTS, INC.
Mustang Investment Group
August 28, 1989
JN 89296
Page 6
of the footing and /or crawl space and it should be sloped for
drainage. A typical footing drain detail is attached to this
report as Plate 8.
The excavation and site should be graded so that surface water
is directed off the site and away from the tops of slopes.
Water should not be allowed to stand in any area where
buildings, slabs, or pavements are to be constructed. Final
site grading in areas adjacent to buildings should be sloped
at least two percent away from the building, except where the
area adjacent to the building is paved.
No groundwater was observed during our field work. However,
seepage into the planned excavation is possible, and if
encountered, the water should be drained away from the site by
use of drainage ditches, perforated pipe or French drains, or
by pumping from sumps interconnected by shallow connector
trenches at the bottom of the excavation.
EXCAVATIONS AND SLOPES
In no case should excavation slopes be steeper or greater than
the limits specified in local, state, and national government
safety regulations. Temporary cuts up to a height of four
feet deep in unsaturated soils may be made vertical. For
slopes having a height greater than four (4) feet, the cut
should have an inclination no steeper than 1:1 (horizontal:
vertical) in soils and 0.5:1 (H:V) in the competent sandstone
rock, from the top of the slope to the bottom of the
excavation.
All permanent cut slopes into native dense soils should be
inclined no steeper than 2:1 (H:V). Fill slopes should not
exceed 2:1 (H:V). Water should not be allowed to flow
uncontrolled over the top of any slope. Also, all permanently
exposed slopes should be seeded with an appropriate species of
vegetation to reduce erosion and improve stability of the
surficial layer of soil.
PAVEMENT AREAS
All pavement sections may be supported on native soils or
structural fill, provided these soils can be compacted to 95
percent density and are stable at -the time of construction.
Structural fill and /or fabric may be needed to stabilize soft,
wet or unstable areas. We recommend using Supac 5NP,
manufactured by Phillips Petroleum Company, or a non -woven
GEOTECH CONSULTANTS, INC.
Mustang Investment Group
August 28, 1989
JN 89296
Page 7
fabric with equivalent strength and permeability character-
istics. In most instances, twelve (12) inches of granular
structural fill will stabilize the subgrade except for very
soft areas where additional fill could be required. The
subgrade should be evaluated by Geotech Consultants, Inc.
after the site is stripped and cutsto grade. The upper twelve
(12) inches of pavement subgrade should be compacted to at
least 95 percent of the ASTM D- 1557 -78 maximum density. Below
this level, a compactive effort of 90 percent would be
adequate. All subgrade areas must also be in a stable, non-
yielding condition prior to paving.
We recommend that that the planned street improvement be
provided with three (3) inches of AC over six (6) inches of
CRB or four (4) inches of ATB. The pavement section
recommendations and guidelines are based on our experience in
the area and on what has been successful in similar
situations. We can provide recommendations based on expected
traffic loads and R value tests, if requested. Some
maintenance and repair of limited areas can be expected. To
provide for a design without the need for any repair would be
uneconomical. We stress again, however, that the performance
of site pavements is related to the strength and stability of
the underlying subgrade.
SITE PREPARATION AND GENERAL EARTHWORK
We recommend that the building and pavement areas be stripped
and cleared of all surface vegetation, all organic matter and
any other deleterious material. Stripped materials should be
removed from the site or, if desired, stockpiled for later use
in landscaping. The stripped materials should not be mixed
with any materials to be used as structural fill. Structural
fill is defined as any fill placed under buildings, pavements,
walkways, or other areas where the underlying soils need to
support loads. Geotech Consultants, Inc. should observe site
conditions prior to fill placement. The surficial site soils
are moisture - sensitive and can become soft when wet and
disturbed. We recommend that, if possible, the site
preparation and earthwork be performed in the normally dry
season of the year when earthwork would generally be less
expensive and require less effort.
Structural fill under floor slabs and foundations should be
placed in horizontal lifts and compacted to a density equal to
or greater than 95 percent of the maximum dry density in
accordance with ASTM Test Designation D- 1557 -78 (Modified
Proctor). The fill materials should be placed at or near the
GEOTECH CONSULTANTS, INC.
Mustang Investment Group
August 28, 1989
JN 89296
Page 8
optimum moisture content. Fill under pavements and walks and
behind retaining walls should also be placed in horizontal
lifts and compacted to 90 percent of the maximum density
except for the top twelve (12) inches which should be
compacted to 95 percent of maximum density. The allowable
thickness of the fill lift will depend on the material type,
compaction equipment and the number of passes made to compact
the lift. In no case should the lifts exceed twelve (12)
inches in loose thickness.
The on -site soils could be used as structural fill provided
the grading operations are conducted during dry weather and
when drying of the soils by aeration is possible. The on -site
soils contain a significant amount of silt (18 to 22 percent)
and thus are moisture sensitive. Grading operations will be
difficult if the soil moisture exceeds the optimum moisture
content. The optimum moisture content is that moisture
content which results in the greatest compacted dry density.
The moisture content of the on -site soils is very important
and must be closely controlled during the filling and
compaction process. The moisture content must be at or near
the optimum moisture content as the on -site soils cannot be
consistently compacted to the required density when the
moisture is greater than optimum. If grading activities take
place during wet weather, or when the soils are wet, site
preparation costs may be higher because of delays due to rains
and the potential need to import granular fill. Moisture
sensitive soils will be susceptible to excessive softening and
"pumping" from construction equipment traffic when the
moisture content is greater than the optimum moisture content.
During excessively dry weather such as may occur during the
summer or early fall months, it may be necessary to add water
to achieve optimum moisture content.
Ideally, structural fill should consist of a granular soil
having no more than 5 percent material passing the No. 200
sieve. The percentage of particles passing the 200 sieve
should be measured on that portion of the soil passing the
three - quarter inch sieve.
LIMITATIONS
The analyses, conclusions and recommendations contained in the
report are based on site conditions as they existed at the
time of our exploration and assume that the soils encountered
in the test pits are representative of the subsurface
GEOTECH CONSULTANTS, INC.
Mustang Investment Group
August 28, 1989
JN 89296
Page 9
conditions of the site. If, during construction, subsurface
conditions are found which are significantly different from
those observed in the test pits, or assumed to exist in the
excavations, we should be advised at once so that we can
review these conditions and reconsider our recommendations
where necessary. Unanticipated soil conditions are commonly
encountered on construction sites and cannot be fully
anticipated by merely taking soil samples in test pits. Such
unexpected conditions frequently require that additional
expenditures be made to attain a properly constructed project.
It is recommended that the owner consider . providing a
contingency fund to accommodate such potential extra costs and
risks.
This report has been prepared for specific application to
this project and for the exclusive use of the Mustang
Investment Group and their representatives. Our
recommendations and conclusions are based on the site
materials observed, selective laboratory testing and
engineering analyses. The conclusions and recommendations are
professional opinions derived in accordance with current
standards of practice within the scope of our services and
within budget and time constraints. No warranty is expressed
or implied. The scope of our services does not include
services related to construction safety precautions and our
recommendations are not intended to direct the contractor's
methods, techniques, sequences or procedures, except as
specifically described in our report for consideration in
design. We recommend that this report, in its entirety, be
included in the project contract documents for the information
of the contractor.
ADDITIONAL SERVICES
It is recommended that Geotech Consultants, Inc. provide a
general review of the geotechnical aspects of the final
design and specifications to verify that the earthwork and
foundation recommendations have been properly interpreted and
implemented in the design and project specifications.
It is also recommended that Geotech Consultants, Inc. be
retained to provide geotechnical consultation, testing, and
observation services during construction. This is to confirm
that subsurface conditions are consistent with those indicated
by our exploration, to evaluate whether earthwork and
foundation construction activities comply with the intent of
contract plans and specifications, and to provide
recommendations for design changes in the event subsurface
GEOTECH CONSULTANTS, INC.
Mustang Investment Group
August 28, 1989
JN 89296
Page 10
conditions differ from those anticipated prior to the start of
construction. However, our work will not include supervision
or direction of the actual work of the contractor, his
employees or agents. Also, job and site safety, and
dimensional measurements, will be the responsibility of the
contractor.. We recommend that a representative of our firm
be present during placement of structural fill to observe the
process and to conduct density tests in the fill.
The following plates are attached and complete this report:
Plate 1 Vicinity Map
Plate 2 Test Pit Location Plan
Plates 3 - 6
Plate 7
Plate 8
Attachments
DBG /JRF:cvb
Test Pit Logs
Grain Size Analysis
Footing Drain Detail
Respectfully submitted,
GEOTECH CONSULTAN , INC.
aZAA/sAI-4
Dennis B. Green
Geotechnical Engineer
1,14/
ames R. Finley, Jr. P.E.
Principal
GEOTECH CONSULTANTS, INC.
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VICINITY MAP
TUKWILA JUNCTION SUBDIVISION
TUKWILA, WASHINGTON
dab No. + Dole:
89296 1 AUGUST 1989 I N.T.8.
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1
3. 150TH STREET
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TEST PIT 1
USCS Description
Elevation:
SM
Brown, silty SAND, fine to medium- grained, dry, loose to
medium dense
Some cobbles
Becomes less weathered and moist
S
cko
Obi USCS
0
SM
I0
15 —
Brown -gray, silty gravelly SAND, moist, very dense
Test pit terminated at 9 feet below existing grade.
No groundwater seepage encountered during excavation.
No caving.
TEST PIT 2
Description
Elevation:
Brown -tan, silty SAND, fine - grained, dry
to moist, loose to medium dense
Cobbles
Becomes Dense
Tan SANDSTONE, hard
Test pit terminated at 6 feet below existing grade.
No groundwater seepage encountered during excavation.
No caving.
TEST PIT LOGS
TUKWILA JUNCTION SUBDIVISION
TUKWILA, WASHINGTON
18./o0 No.:
9296
IGott: Lopped By:
8/14/89 I DBG
3
10
15
0
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•
TEST PIT 3
USCS Description
Elevation:
•
•
SM
Rock
Brown, silty, slightly gravelly SAND, very fine -
grained, dry to moist, loose to medium dense
Cobbles and boulders
(Occasional large boulders, 3'0)
Brown fractured, weathered SANDSTONE, with granite boulder
inclusions
Test pit terminated at 5 feet below existing grade.
No groundwater seepage encountered during excavation.
No caving.
�
TEST PIT 4
,
�CY e USCS Description
Elevation:
•
•
I :I
Tr.
•
Rock
Brown, silty SAND, fine - grained, dry, loose to medium
dense,with weathered rock fragments
: ,/Brownuweathered SANDSTONE with granite boulder inclusions,
HARD
Test pit terminated at 4 feet below existing grade.
No groundwater seepage encountered during excavation.
No caving.
TEST PIT LOGS
TUKWILA JUNCTION SUBDIVISION
TUKWILA, WASHINGTON
89.'o0 No.+ 6 29
IDole: Lopped BY'
8/14/89 I DBC
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TEST PIT 5
Description
Elevation:
;1:4:' Brown, very silty, slightly gravelly SAND, very fine-
' S
• • grained, dry, loose to medium dense
III
Tan, clayey, gravelly sandy SILT, moist
dense
• • • . •
• • M • 1
• • • • 1
• • • •
•
Brown, silty, gravelly SAND, fine to coarse- grained,: moist
to wet, dense
Becomes less silty
Test pit terminated at 14 feet below existing grade.
No groundwater seepage encountered during excavation.
No caving.
GEOTECH
CONSULTANTS
TEST PIT LOG
TUKWILA JUNCTION SUBDIVISION
TUKWILA, WASHINGTON
'dab No.1 topped 89296 10001
8/14/89 1 DBG
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USCS Description
E /evolion
:1:1: :: Brown, silty, slightly gravelly SAND, fine -
:SM grained, dry, loose to medium dense with weathered
77. SANDSTONE fragments
Tan, silty, gravelly SAND, moist, dense
•
•
•
•
'SM
•
•
•
•
Becomes very dense
Becomes gray -blue
Test pit terminated at 8 feet below existing grade.
No groundwater seepage encountered during excavation.
No caving.
TEST PIT LOGS
TUKWILA JUNCTION SUBDIVISION
TUKWILA, WASHINGTON
169 °96
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8/14/891 "'Mk
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PER. COARSER BY WEIGHT
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GRAIN SIZE ANALYSIS
TUKWILA JUNCTION SUBDIVISION
TUKWILA, WASHINGTON
rob No.: Dol•: qr.
89296 I 8/14/89 DBG
7
T/GHTL /NE ROOF DRAIN
Do not connect 10 fooling drain.
WASHED ROCK
6mn.
VAPOR BARR /ER
,,„ `:•, 4 „min.
NONWOVEN GEOTEXT /LE
FILTER FABRIC
FREE -DRAINING
SAND /GRAVEL
4” PERFORATED HARD PVC PIPE
Inver/ at leas/ as /ow as fooling and /or
crow/ space. Slope to drain. P /ace
weepho /es downward.
FOOTING DRAIN DETAIL
TUKWILA JUNCTION SUBDIVISION
TUKWILA, WASHINGTON
\oJ
1
H. 'Ion Dennis & Associates, Inc.
Mr. Phil Fraser, Senior E
Tukwila Public Works De
6200 Southcenter Boulev
Tukwila, Washington 98
SUBJECT: FIREFLOW AN
HDA JOB 8466
Dear Mr. Fraser:
At the request of
have completed the co
residential housing area I
of 57th Avenue South in
background flow of 5,040
Hia
Consu%ling Engineers
August 7, 1989
gineer
rtment
d
138
YSIS FOR TUKWILA JUNCTION
0
RECEIVED.
AUG 1 G 1989
TUKWILA
PUBLIC WORKS
. Brad E. Decker of the Mustang Investment Group, we
uter analyses of available fireflow at the proposed
Gated north of South 152nd Street and immediately west
Tukwila. For each test, we have assumed a peak hourly
gpm for the Tukwila Water System.
RESULTS OF COMP, TER SIMULATED FIREFLOWS ON TUKWILA WATER SYS.
i
i
I
ill
1. Peak Flow condition 1 (NODE 417)
plus fireflow with ihpw
8 inch dead end 11 16 to FH #2 Q =2200 gpm 0 =30 gpm
In new proposed d�selopment. P =30.9 psi P =22.2 psi
I;, P
2. Peak Flow conditio (NODE 416)
plus fireflow with 64w
8 Inch dead end lire to FH #1 0 =2350 gpm • Q =30 gpm ''
In new proposed development: P =30.0 psi P=21.4' psi
1
3. Peak Flow condition'
plus fireflow, with ;hew . (NODE 416)
8 Inch line looped through new Q =3100 gpm 0 =30 gpm
proposed development, at FH #1. P =30.2 psi P =27.8 psi
i4
Test Condition
Flow and Residual Pressures
At Tukwila Junction
Residential Housing Area
(NODE 417)
At Top of N. Hill
(NODE 46)
320 Second Avenue Soutl , Kirkland, Washington 9803.3 -MR7 • PhnnE. 5299.94//
It Is clear that th 8 inch dead end line would serve quite sufficiently for
the desired flow allowin for well over the required 1000 gpm and 30 psi residual
at each hydrant. A I p is not necessary and proves to be of little or no
advantage, unless additl, nal sources such as the new reservoir are added to the
west side of the system,h because of the altitude and the additional pipe head •loss
of the proposed location
If we can provide`; dditional service, please let us know.
DLM:dlm
cc: Mr. Brad E. Decker
Sincerely,
1-1
71-7 ON DENNIS & ASSOCIATES, INC.
w -_ pl
Daniel . Mattson
Horton Dennis & Associa es, Inc. • Consulting Enuineerc • Kirlrinnd
As
oeGNAGo
traffic design transportation planning
1022 Yale Avenue North
April 7, 1989
Seattle. Washington 98109 (206) 340 -0835
ESM, Inc.
941 Powell Avenue•SW - Suite 100
Renton, WA. 98055
ATTN: Bret Cummock
Subject: Traffic Impacts Associated with Proposed Plat of
Tukwila Junction, Tukwila, WA. (88 -1 -SUB)
Dear Mr. Cummock:
The purpose of this letter is to identify the traffic related
impacts associated with the proposed Plat of Tukwila
Junction. The information which follows should provide the
City of Tukwila staff with the information necessary to
complete the review of the project.
Project Description
The proposed project is for the development of a 17 lot
plat on roughly 4 acres within the City of Tukwila. The
plat is located on the west side of 57th Avenue S. at S.
150th Place. The site is currently occupied by two older
residences. The existing zoning of the site is
R -1 -12 which is proposed to be rezoned to R- 1 -7.2. Access
to the plat would be from 57th Avenue S., with a future
connection to the north from the interior of the plat. A
vicinity map is shown on Figure 1.
Existing Roadway Conditions
The proposed plat will be served by a variety of
residential streets prior to entering the arterial
network. 57th Avenue S. is a local access street which
will provide access to the plat. The roadway is
approximately 22 feet in width between S. 144th Street and
S. 147th Street with some areas widened out on the west
side of the street to allow parking. The section of
roadway south of S. 147th Street is approximately 28 feet
wide with parking allowed on the west side of the street.
Just south of the proposed plat access the roadway narrows
roughly ten feet on the east side to accommodate access to
a single - family residence. Jersey barrier has been
•
installed along the narrowed section. Curb, gutter and
sidewalk have been installed along the roadway. The
roadway is fronted by single - family dwellings.
S. 144th Street is two -lane collector street fronted by
single - family dwellings. The roadway is approximately 36
feet in width with curb, gutter, sidewalk and'street
lights. A centerline has been marked and on- street
parking is allowed on both sides of the street. S. 144th
Street crosses over I -5 and provides access to SR -99.
58th Avenue S.'62nd Avenue S. /S. 151st Street /65th Avenue
S. is a meandering arterial roadway through the
neighborhood which provides a connection to Southcenter
Boulevard. The roadway is approximately 36 -40 feet in
width with curb, gutter, and sidewalk. The roadway is
characterized by both horizontal and vertical curves. The
posted speed is 25 mph.
An AM and PM peak hour traffic count was conducted at the
intersection of S. 144th Street /57th Avenue S. for this
study. The results of the counts show very light volumes
of traffic at this intersection as was the case at other
adjacent intersections which were visible during these
same time periods. A summary of these counts has been
attached. Based on the PM peak hour counts, it is
estimated that the average daily traffic volume on S.
144th Street is in the range of 1800 vehicles per day.
The average daily traffic volume on 57th Avenue S. is
estimated to be in the range of 150 vehicles per day.
Trip Generation /Distribution
The development of the subject site will generate
additional traffic onto the adjacent transportation
system. The ITE Trip Generation Manual (published by the.
Institute of Transportation Engineers, 4th Edition,_ 1987)
has been used to estimate the number of trips which can
theoretically be expected to be generated by a development
of this type. ITE Land. Use Code,210 - Single Family
Detached Housing, was chosen as the appropriate trip rate
to be used for this development. The following table
shows the number of trips expected to be generated by the
development based on the number of lots.
TRIP GENERATION
(17 LOTS)
TIME PERIOD TOTAL TRIPS
Daily 193
AM Peak Enter 4
Exit 12
Total 16
PM Peak Enter 13
Exit 7
Total 20
A review of the table indicates that the development of
the site as single family dwellings will generate a very
small amount of traffic.
The traffic generated by the development of the site will
be distributed onto the adjacent roadway system. It is
reasonable to assume that most of the trips during the
peak hours will be work - related and thus destined towards
the regional transportation systems such as I -5 or I -405
via the adjacent local streets.
Figure 2 shows the estimated trip distribution by percent
and daily volume for the subject site. It should be noted
that these values are approximate and may vary from day to
day depending on the needs and desires of the residents of
the plat. It is expected that trips associated with the
site will use S. 144th Street, 58th Avenue S. or 65th
Avenue S. to reach the major arterials and access the
regional transportation systems.
Figure 3 shows the trip assignment on the adjacent street
system during the AM and PM peak hours. It can be seen
from Figure 3 the small number of trips which will impact
any given roadway as a result of the small number of trips
expected to be generated by the plat.
Level of Service
The intersection of 57th Avenue S. /S. 144th Street will be
directly impacted by the proposed development with respect
to level of service. Also, the City of Tukwila has
indicated a concern with regards to the capacity of 57th
Avenue South. The intersection is currently controlled by
a stop sign for traffic in the north -south direction.
"Level of service" is a common term used in the Traffic
Engineering profession which is defined as a qualitative
measure describing operational conditions within a traffic
stream, and its perception by motorists and /or passengers.
These conditions are usually described in terms of such
factors as speed and travel time, freedom to maneuver,
traffic interruptions, comfort and convenience, and
safety. Six levels of service are designated, ranging
from A to F, with level of service "A" representing the
best operating conditions and level of service "F" the
worst.
The first step in the capacity analysis of an existing
intersection id to manually count all of the traffic
movements during the critical peak -hour period(s). A
manual traffic count was conducted during the AM and PM
peak hour at the intersection noted above. The
intersection is then analyzed, taking into account all of
the physical features and methods of traffic control.
This process produces a rating for the intersection that
defines a "level -of- service" for each vehicle. An
expanded explanation of "level of service ", along with the
tables which identify the criteria for analyzing
unsignalized intersections, as presented in the Highway
Capacity Manual, has been provided in the Appendix.
The actual capacity of an intersection is generally
considered to be at the lower end of level of service "E"
and most agencies strive to maintain a roadway network
that will not drop below this level of operation, except
perhaps during unusual periods such as holiday shopping,
sporting events, etc. The following shows the current
levels of service.
EXISTING PEAK HOUR LEVELS OF SERVICE
RESERVE
LOCATION PERIOD MOVEMENT LOS CAPACITY
57th Avenue S./ AM EB * -
S. 144th Street WB * -
NB A 953
SB A 913
PM EB A 1085
WB A 1117
NB A 831
SB A 902
* No left -turns recorded during the time period.
The results of the analysis show that all of the movements
are operating at level of service "A" during both the AM
and PM peak hour. Due to the low volume of traffic on
both the main street and the side street, plenty of gaps
are available which result in the high levels of service.
The levels of service were reviewed again for future
conditions (1991) upon completion of the plat. The base
volumes at the intersection were increased by 10% per year
to account for general background growth in the area. The
trips from the proposed plat were then added into these
volumes. (Future volume estimates have been attached.)
The results of.the capacity analyses with and without the
project were as follows:
FUTURE PEAK HOUR LEVELS OF SERVICE
57TH AVENUE S. /S. 144TH STREET*
TIME PERIOD
AM
PM
LEVEL OF SERVICE (R.C.)
MOVEMENT BASE CONDITION W /PROJECT
EB A (1140) A (1140)
WB A (1138) A (1135)
NB A (935) A (930)
SB A (907) A (903)
EB A (1061) A (1061)
WB A (1100) A (1092)
NB A (805) A (818)
SB A (853) A (847)
* Dnsignalized levels of service shown for most critical
movements.
The results of the capacity analyses for the future levels
of service are similar to the existing conditions, i.e.,
all of the movements will operate at levels of service
"A ". The additional trips resulting from the development
of the plat will create only a minor impact.
OTHER CONCERNS
The City of Tukwila staff has raised concerns with regards
to the roadway capacity on 57th Avenue South, the narrow
sections on 57th Avenue South, and the jersey barrier on
57th Avenue South.
Typically, roadway capacity in an urban area is determined
at intersections which are controlled by a stop sign or
traffic signal. Two intersections along 57th Avenue South
between the plat entrance and S. 144th Street are stop
sign controlled, the first at S. 147th Street and the
second at S. 144th Street. The intersection of S. 144th
Street /57th Avenue S. was analyzed above and found that
all movements were at level of service "A ". It is
believed that volumes at the S. 147th Street /57th Avenue
S. intersection are lower and thus level of service "A"
would also be present.
Level of service on an urban roadway can also be measured
in terms of the average travel speed. The rationale
behind this measure is that the more congested a roadway
is, the lower the travel speed will be. Since there is a
very small amount of traffic on.57th Avenue South,
operations on the roadway are virtually unimpeded.
Traveling at the speed limit (25 mph) is possible and thus
indicative of level of service "A ".
A final comparison which could be made as to the capacity
of the roadway is to calculate the service volume for a
two -lane roadway along the uncontrolled sections taking
into account such influences as the narrow lanes, the
terrain, and directional split. Based on these
considerations, a two -lane roadway such as 57th Avenue
could handle over 1000 total vehicles in an hour.
Although this volume of traffic would be undesirable on a
residential street such as 57th Avenue South, it does
provide a value for comparison purposes as to the existing
roadway volumes and the potential capacity.
As mentioned earlier, 57th Avenue S. is 22 to 28 feet in
width between S. 144th Street and the plat entrance.
Parking is restricted on at least one side of the street
and occasionally on both sides. At its narrowest section,
57th Avenue S. is still able to accommodate one lane of
traffic in each direction. Although the street width
along 57th Avenue S. may be viewed as a substandard width,
the narrowness of a street tends to discourage speeding,
which can be a significant problem in some neighborhoods.
Wider roadways tend to be viewed by motorists as arterials
and therefore driven at a higher rate of speed.
A recent project in the Somerset area of Bellevue
installed new channelization to narrow the travel lanes to
eleven feet and installed curb extensions at multiple
locations as well. The roadway had been constructed as a
36 foot wide street. As a result of the wide cross -
section, motorists tended to drive the street as a major
arterial with speeds in the 35 to 45 mph range. The
narrowing of the roadway has assisted in lowering the
speeds along the roadway.
The final concern deals with the jersey barrier on the
east side of 57th Avenue South. The barrier extends
southward from roughly the plat entrance. The barrier has
been installed along a narrow section of 57th Avenue S. to
protect motorists from a steep drop -off into an adjacent
6
driveway. The narrow section of roadway impacts a single -
family residence and the future Tukwila reservoir. There
is essentially nothing which can be done to change this
situation without a significant impact to the single -
family residence whose driveway is served by the narrow
section and significant expenditure of funds. In any
case, the proposed plat did not create this situation nor
will it be impacting the situation.
CONCLUSIONS /RECOMMENDATIONS
The proposed Plat of Tukwila Junction will generate a
small amount of traffic on both a daily and peak hour
basis. The small number of trips generated by the plat
will create a limited impact on the adjacent neighborhood
streets. The roadways and intersections in the
neighborhood are operating at good levels of service and
will continue to do so upon completion of the project.
The City of Tukwila has raised concerns with regards to
the narrowness of 57th Avenue South. It is believed that
the narrowness of the street is a positive trait of the
street which should not be modified.
The process of determining the impacts and appropriate
mitigation for a project is always difficult. Determining
whether or not a development should be responsible for
certain improvements should be based on a demonstrated
need, and, that the need is directly related to the
proposed development. It appears from the results of the
traffic analysis presented that the proposed development
will not create direct off -site adverse impacts and
therefore no mitigation is appropriate.
We trust that the above information has adequately addressed
the traffic impacts expected to be generated by the proposed
plat. As always, if you should have any questions or need
additional information., please feel free to contact our
office.
Sincerely,
Geri Reinart, P.E.
David I. Hamlin and Associates
Attachments
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PROJECT VICINITY MAP
FIGURE 1
ESTIMATED TRIP DISTRIBUTION AND DAILY TRIP ASSIGNMENT
FIGURE 2
SR-99
PROJECT SITE
SR-518
XX AM PEAK HOUR TRIPS
(XX) - PM PEAK HOUR TRIPS
ESTIMATED AM AND PM PEAK HOUR TRIP ASSIGNMENT
FIGURE 3
LEVEL OF SERVICE
(The following are excerpts from the 1985 Highway Capacity
Manual - Special Report 209.)
The concept of level of service is defined as a
qualitative measure describing operational conditions
within a traffic stream, and their perception by motorists
and /or passengers. A level -of- service definition
generally describes these conditions in terms of such
factors as speed and travel time, freedom to maneuver,
traffic interruptions, comfort and convenience, and
safety.
Six levels of service are defined for each facility for
which analysis procedures are available. They are given
letter designations, from A to F, with level -of- service A
representing the best operating conditions and level -of-
service F the worst.
1. Level -of- service definitions - In general, the various
levels of service are defined as follows for uninterrupted
flow facilities:
- Level -of- service A represents free flow. Individual
users are virtually unaffected by the presence of others
in the traffic stream. Freedom to select desired speeds
and to maneuver within the traffic stream is extremely
high. The general level of comfort and convenience .
provided to the motorist, passenger, and pedestrian -is
excellent.
- Level -of- service B is in the range of stable flow, but
the presence of other users in the traffic stream begins
to be noticeable. Freedom to select desired speeds is
relatively unaffected, but there is a slight decline in
the freedom to maneuver within the traffic stream from
level of service A. The level of comfort and
convenience provided is somewhat less than at level of
service A, because the presence of others in the traffic
stream begins to affect individual behavior.
- Level -of- service C is in the range of stable flow, but
marks the beginning of the range of flow in which the
operation of individual users becomes significantly
affected by the interactions with others in the
traffic stream. The selection of speed is now affected
by the presence of others, and maneuvering within the
traffic stream requires substantial vigilance on the
part of the user. The general level of comfort and
convenience declines noticeably at this level.
- Level -of- service D represents high- density, but
stable, flow. Speed and freedom to maneuver are
severely restricted, and the driver or pedestrian
experiences a generally poor level of comfort and
convenience. Small increases in traffic flow will
generally cause operational problems at this level.
- Level -of- service E represents operating conditions at
or near the capacity level. All speeds are reduced to a
low, but relatively uniform value. Freedom to maneuver
within the traffic stream is extremely difficult, and it
is generally accomplished by forcing a vehicle or
pedestrian to "give way" to accommodate such maneuvers.
Comfort and convenience levels are extremely poor, and
driver or pedestrian frustration is generally high.
Operations at this level are usually unstable, because
small increases in flow or minor perturbations within
the traffic stream will cause breakdowns.
- Level -of- service F is used to define forced or
breakdown flow. This conditions exists whenever the
amount of traffic approaching a point exceeds the
amount which can traverse the point. Queues form behind
such locations. Operations within the queue are
characterized by stop- and -go waves, and they are
extremely unstable. Vehicles may progress at reasonable
speeds for several hundred feet or more, then be
required to stop in a cyclic fashion. Level -of- service
F is used to describe the operating conditions within
the queue, as well as the point of the breakdown. It
should be noted, however, that in many cases operating
conditions of vehicles or pedestrians discharged from
the queue may be quite good. Nevertheless, it is the
point at which arrival flow exceeds discharge flow which
causes the queue to form, and the level -of- service F is
an appropriate designation for such points.
These definitions are general and conceptual in nature,
and they apply primarily to uninterrupted flow. Levels of
service for interrupted flow facilities vary widely in
terms of both the user's perception of service quality and
the operational variables used to describe them.
For each type of facility, levels of service are defined
based on one or more operational parameters which best
describe operating quality for the subject facility type.
While the concept of level of service attempts to address
a wide range of operating conditions, limitations on data
collection and availability make it impractical to treat
the full range of operational parameters for every type of
facility. The parameters selected to define levels of
service for each facility type are called "measures of
effectiveness," and represent those available measures,
that best describe the quality of operation on the subject
facility type.
Each level of service represents a range of conditions, as
defined by a range in the parameters given. Thus, a level
of service is not a discrete condition, but rather a range
of conditions for which boundaries are established.
The following tables describe level of service for
signalized and unsignalized intersections. Level of
service for signalized intersections is defined in terms
of delay . Delay is a measure of driver discomfort,
frustration, fuel consumption, and lost travel time.
Specifically, level -of- service criteria are stated in
terms of the average stopped delay per vehicle for a 15-
minute analysis period. Level of service for unsignalized
intersections is measured in terms of unused, or reserve
capacity of the lane in question.
SIGNALIZED INTERSECTIONS - LEVEL OF SERVICE
Stopped Delay Per
Level Of Service Vehicle (sec)
A less than 5.1
B 5.1 to 15.0
C 15.1 to 25.0
D 25.1 to 40.0
E 40.1 to 60.0
F greater than 60.0
ONSIGNALIZED INTERSECTIONS - LEVEL OF SERVICE
Reserve Expected Delay to
Level Of Service Capacity Minor Street Traffic
A 400+ Little or no delay.
B 300 -399 Short traffic delay.
C 200 -299 Average traffic delay.
D 100 -199 Long traffic delays.
E 0 -99 Very long traffic delays.
F <0
The level of service for a four -way stop controlled
intersection is not as well- defined as other forms of
control. The following three tables show the capacity for a
four -way stop and approximate level of service C" volumes
for four -way stop - controlled intersections.
CAPACITY OF TWO - BY-TWO LANE FOUR -WAY STOP- CONTROLLED
INTERSECTION FOR VARIOUS DEMAND SPLITS
DEMAND SPLIT CAPACITY (VPH)*
50/50 • 1900
55/45 1800
60/40 1700
65/35 1600
70/30 1500
* Total Capacity, All Legs
CAPACITY OF FOUR -WAY STOP- CONTROLLED INTERSECTIONS WITH
50/50 DEMAND SPLIT FOR VARIOUS APPROACH WIDTHS
INTERSECTION TYPE CAPACITY (VPH)*
2 -lane by 2 -lane 1900
2 -lane by 4 -lane 2800
4 -lane by 4 -lane 3600
* Total Capacity, All Legs
APPROXIMATE LEVEL -OF- SERVICE C SERVICE VOLUMES FOR FOUR -WAY
STOP- CONTROLLED INTERSECTIONS
DEMAND
SPLIT
50/50
55/45
60/40
65/35
70/30
LOS C SERVICE VOLUME, VPH
NUMBER OF LANES
2 BY 2
1200
1140
1080
1010
960
2 BY 4
1800
1720
1660
1630
1610
4 BY 4
2200
2070
1970
1880
1820
Z
W
AM PEAK HOUR =
0-
ti
S. 144TH STREET
�—s
87
44i--
:T
•
N
4
1 +1
2
43 42
1
0
W
Z
W
PM PERK HOUR
S. 144TH STREET
174
1
3
2+6
11
114
116
5
70 61
7
t-a
—o.49
N
90
1
96 102
H
s 166
--4■ 64
I
2 1
4
114
COUNT DATE: APRIL 4. 1889 (PM)
APRIL 5. 1889 (AM)
EXISTING PEAK HOUR TRAFFIC VOLUMES
S. 144TH STREET /57TH AVENUE S.
•
W
RR PERK HOUR
1-
ti
S. 144TH STREET
f.
108
t13
2 +.2
3
W
7
Z
W
P11 PERK HOUR
S. 144TH STREET
211
126E --
•
N
50 4.52
4
• 37
14
119
tea
10
12
73
2
85 74
1
—.se
2
116 124
2
3 +2
77
13
t28
112
6 293,
-.79
1991 ESTIMATED PEAK HOUR TRAFFIC VOLUMES - BASE CONDITIONS'
S. 144TH STREET /57TH AVENUE S.
0i
ccW
S
W
AM PERK HOUR =
1-
ti
n
S. 144TH STREET
57E-
1
54 51
2
$13
7
2 ±2
3
PM PEAK HOUR
S. 144TH STREET
214
57TH AVENUE S.
•
N
39 53
H
2 117
4 X64
511
20
127
:22
10
1j2-
T 3
2
2
1274-
6 116 128
87 T4 1.1
2
T 4 4.40.4
10
139
E--s
—0.81
210
1991 ESTIMATED PERK HOUR TRAFFIC VOLUMES - WITH PROJECT
S. 144TH STREET /57TH AVENUE S.
•INTERSECTION :
S. 144TH STREET @ �� ���
S. 144TH STREET @ Gil �,...ct
57TH AVENUE S. @
57TH AVENUE S. 5, `94�-• S {,/ 51 t h AV e
WEEKDAY AM PEAK 1989 CBD ?N. S,
UNSIGNALIZED
- MAJOR STREET RUNS EAST / WEST
DAVID I. HAMLIN & ASSOCIAT, 4/5/1989
•
PLLAT OF TUKWILA JUNCTION XAS144
U N S I G N A L I Z E D C R I T I C A L G A P S
APP
CRITICAL GAPS (SEC)
LEFT TURN • THROUGH RIGHT TURN
EB 5.00
WB 5.00 - --
NB 6.50 6.00 5.50
SB 6.50 6.00 5.50
.
STREET - EB /WB
DAVID I. HAMLIN & ASSOCIATES 4/5/1989
• PLLAT OF TUKWILA JUNCTIO• XAS144
INTERSECTION :
'S. 144TH STREET @
S. 144TH STREET @
57TH AVENUE S. @
57TH AVENUE S.
WEEKDAY AM PEAK 1989 CBD ?N
UNSIGNALIZED
- MAJOR STREET RUNS EAST / WEST
APP
EB
WB
NB
SB
T R A F F I C & R O A D W A Y C O N D I T I O N S
GRADE HV ADJ. PKG LN. BUSES CONF. PEDS PED BUTTON ARR
(Y.) ( %) Y/N Nm (Nb) PHF (peds /hr) Y/N SEC TYPE
-4 0 N 0 0 0.90 0 • N 0.0
4 0 N 0 0 0.90 0 N 0.0 3
0 0 N �0 0 0.90 0 N 0.0 3
0 0 N 0 0 0.90 0 N 0.0 3
G E O M E T R I C S / V O L U M E S
LANE GROUPS
VOLUME 1 2 3
APP LT TH RT MVM. LNS WD MVM LNS WD MVM LNS WD
EB 0 42 1 LTR 1 16.0
WB 0 41 0 LTR 1 16.0
NB 2 3 6 LTR 1 11.0
SB 1 2 1 LTR 1 11.0
LEVEL OF SERVICE A
4•1111M MOW/0MM
NB RESERVE CAPACITY 831 - --
LEVEL OF SERVICE A
SB RESERVE CAPACITY 902
LEVEL OF SERVICE A
MAJOR STREET - EB /WB
DAVID I. HAMLIN & ASSOCIAT S 4/5/1989
• PLLAT OF TUKWILA JUNCTIO XPS144
.INTERSECTION :
S. 144TH STREET @
S. 144TH STREET @
57TH AVENUE S. @
57TH AVENUE S.
WEEKDAY PM PEAK 1989 CBD ?N
UNSIGNALIZED
- MAJOR STREET RUNS EAST / WEST
T R A F F I C & R O A D W A Y C O N D I T I O N S
GRADE HV ADJ. PKG LN. BUSES CONF. PEDS PED BUTTON
APP (X) (X) Y/N Nm (Nb) PHF (peds /hr) Y/N SEC
EB -4 0 N 0 0 0.90 0 N 0.0
WB 4 0 N 4 0 0.90 0 N 0.0
NB 0 0 N 0 0 0.90 0 N 0.0
SB 0 0 N 0 0 0.90 0 N 0.0
ARR
TYPE
J
.j
3
G E O M E T R I C S / V O L U M E S
LANE GROUPS
VOLUME 1 2
APP LT TH RT MVM LNS WD MVM LNS WD MVM ,LNS WD
EB 5 61 4 LTR 1 16.0
WB 5 96 1 LTR 1 16.0
NB 2 1 1 LTR 1 11.0
SB 2 1 6 LTR 1 11.0
DAVID I. HAMLIN &
• PLLAT OF TUKWILA
INTERSECTION :
t. 144TH STREET @
S. 144TH STREET @
57TH AVENUE S. @
57TH AVENUE S.
WEEKDAY AM PEAK 1991
UNSIGNALIZED
— MAJOR STREET RUNS EAST / WEST
U N S I G N A L I Z E D
APP
EB
WB
NB
SB
ASSOCIATES
JUNCTIO�
CBD ^N
4/5/1989
FAS144
iPt� 1 P,■M FatOchm
ba_SQ. to
s, 140 .4' S }/ s-f ' Po■VQ
C R I T I C A L G A P S
CRITICAL GAPS (SEC)
LEFT TURN THROUGH RIGHT TURN
5.00
5.00
6.50
6.50
AIM Milvm•■
6.00
6.00
5.50
5.50
APP
EB
WB
NB
SB
V O L U M E A L L O C A T I O N
LANE 1
L T R
1 51
1 50
4
LANE 2
L T
T O L A N E S
LANE 3
R L T R
1 0
1 0
7 0
2 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
U N S I G N A L I Z E D
LANE 1. LANE 2 LANE 3
RESERVE CAPACITY 1140
LEVEL OF SERVICE A
WB RESERVE CAPACITY 1138
LEVEL OF SERVICE A
NB RESERVE CAPACITY
LEVEL OF SERVICE
SB RESERVE CAPACITY
LEVEL OF SERVICE
MAJOR STREET — EB /WB
935
A
907
A
DAVID I. HAMLIN & ASSOCIATES 4/5/1989
• PLLAT OF TUKWILA JUNCTIOII/ FAS144
- INTERSECTION :
z.S. 144TH STREET @
S. 144TH STREET @
57TH AVENUE S. @
57TH AVENUE S.
WEEKDAY AM PEAK 1991 CBD ?N
UNSIGNALIZED
— MAJOR STREET RUNS EAST / WEST
APP
EB
WB
NB
SB
T R A F F I C & R O A D W A Y C O N D I T I O N S
GRADE HV ADJ. PKG LN. BUSES CONF. PEDS PED BUTTON ARR
( %) (7.) Y/N Nm (Nb) PHF (peds /hr) Y/N SEC TYPE
—4 0 N 0 0 0.90 0 N 0.0
4 0 N 0 0 0.90 0 N 0.0
0 0 N 0 0 0.90 0 N 0.0
0 0 N 0 0 0.90 0 N 0.0
Cd C•1 (AI GJ
G E O M E T R I C S / V O L U M E S
LANE GROUPS
VOLUME 1 _
APE LT TH RT MVM LNS WD MVM LNS WD MVM LNS WD
EB 1 51 1 LTR 1 16.0
WB 1 50 1 LTR: 1 16.0
NB 3 4 7 LTR 1 11.0
SB 2 3 2 LTR 1 11.0
•
DAVID I. HAMLIN & ASSOCIATES 4/5/1989
• PLAT OF TUKWILA JUNCTI01N'. FPS144
INTERSECTION :
S. 144TH STREET @ ��r
S. 144TH STREET @ 101011 pC'r
57TH AVENUE S. @
57TH AVENUE S. bc�Ss` C.O
WEEKDAY PM PEAK 1991 UNS I GNAL I ZED CBD ?N S� 1 q4 s'r• /.54.114.%
- MAJOR STREET RUNS EAST / WEST fvj =• S,
U N S I G N A L I Z E D C R I T I C A L GAPS
APP
CRITICAL GAPS (SEC)
LEFT TURN THROUGH RIGHT TURN
EB 5.00
WB 5.00
NB 6.50
SP 6.50
6.00 5.50
6.00 5.50
V O L U M E A L L O C A T I O N T O L A N E S
LANE 1 LANE 2 LANE 3
APP L T R L T R L T R
EB 6 74 5 0 0 0 0 0 0
WB 6 116 2 0 0 0 0 0 0
NB- 3 2 2 0 0 0 0 0 0
SB 3 2 7 0 0 0 0 0 0
APP
EB
WB
NB
SB
UNS I GNAL I Z E D
LANE 1 LANE 2 LANE 3
RESERVE CAPACITY 1061
LEVEL OF SERVICE A
RESERVE CAPACITY 1100
LEVEL OF SERVICE A
RESERVE CAPACITY 805
LEVEL OF SERVICE A
RESERVE CAPACITY 853
LEVEL OF SERVICE A
MAJOR STREET - EB /WB
rs DAVID I. HAMLIN & ASSOCIAT
40
PLAT OF TUKWILA JUNCTION
;INTERSECTION :
S. 144TH STREET @
S. 144TH STREET el
57TH AVENUE S. @
57TH AVENUE S.
WEEKDAY PM PEAK 1991 CBD ?N
UNSIGNALIZED
- MAJOR STREET RUNS EAST / WEST
4/5/1989
FPS144
T R A F F I C & R O A D W A Y C O N D I T I O N S
GRADE HV ADJ. PKG LN. BUSES CONF. PEDS PED BUTTON ARR
APP (X) (7.) Y/N Nm (Nb) PHF (peds /hr) Y/N SEC TYPE
EB -4 0 N 0 0 0.90 0 N 0.0
WB 4 0 N '0 0 0.90 0 N 0.0 -
NB 0 0 N 0 0 0.90 0 N 0.0 3
SB 0 0 N 0 0
0.90 0 N 0.0 3
G E O M E T R I C S / V O L U M E S
LANE GROUPS
VOLUME 1 2 _
APP LT TH RT MVM LNS WD MVM LNS WD MVM JLNS WD
EB 6 74 5 LTR 1 16.0
WB 6 116 2 LTR 1 16.0
NB 3 4 2 LTR 1 11.0
SB 3 2 7 LTR 1 11.0
;INTERSECTION :
S. 144TH STREET @
S. 144TH STREET @
57TH AVENUE S. @
57TH AVENUE S.
WEEKDAY AM PEAK 1991
UNSIGNALIZED
- MAJOR STREET RUNS EAST / WEST
DAVID I. HAMLIN & ASSOCIATES 4/6/1989
410 PLLAT OF TUKWILA JUNCTIO• DAS144
U N S I G N A L I Z E D
APP
EB
WB
NB
SB
CBD ^N
f_in°
S‘ q k % Sr/ S14L Ave
C R I T I CAL GAPS
CRITICAL GAPS (SEC)
LEFT TURN . THROUGH RIGHT TURN
5.00
5.00
6.50
6.50
6.00
6.00
5.50
5.50
APP
EB
WB
NB
SB
V O L U M E A L L O C A T I O N
LANE 1
L T R
1 51
2 50 1
5 4 11
3 2
LANE 2
L T R
T O L A N E S
LANE 3
L T R
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
APP
EB RESERVE CAPACITY 1140
LEVEL OF SERVICE A
WB RESERVE CAPACITY 1135
LEVEL OF SERVICE A
NB RESERVE CAPACITY 930
LEVEL OF SERVICE A
SB RESERVE CAPACITY 903
LEVEL OF SERVICE A
U N S I G N A L I Z E D
LANE 1 LANE 2 LANE 3
MAJOR STREET - EB /WB
DAVID I. HAMLIN & ASSOCIAT S 4/6/1989
PLLAT OF TUKWILA JUNCTIO DAS144
4INTERSECTION :
S. 144TH STREET @
S. 144TH STREET @
57TH AVENUE S. @
57TH AVENUE S.
WEEKDAY AM PEAK 1991 CBD ?N
UNSIGNALIZED
- MAJOR STREET RUNS EAST / WEST
T R A F F I C & ROADWAY C O N D I T I O N S
GRADE HV ADJ. PKG LN. BUSES CONF. PEDS PED BUTTON ARR
APP (7.) (7.) Y/N Nm (Nb) PHF (peds /hr) Y/N SEC TYPE
EB -4 0 N 0 0 0.90 0 N 0.0
WB 4 0 N .0 0 0.90 0 N 0.0
NB 0 0 N 0 0 0.90 0 N 0.0
SB 0 0 N 0 0 0.90 0 N 0.0
GJ (.J 41 (.1
G E O M E T R I C S / V O L U M E S
LANE GROUPS
VOLUME 1 2 3
APP LT TH RT MVM LNS WD MVM LNS WD MVM LNS WD
EB 1 51 4 LTR 1 16.0
WB 50 1 LTR 1 16.0
NB 5 4 11 LTR 1 11.0
SB - 3 2 LTR 1 11.0
DAVID I. HAMLIN & ASSOCIATES 4/6/1989
4 • PLAT OF TUKWILA JUNCTIOO DPS144
INTERSECTION
S. 144TH STREET @
S. 144TH STREET @ V901 P� fi
57TH AVENUE S. @ W/ 9p
57TH AVENUE S. !! -,'�'� �V 2 ,
WEEKDAY PM PEAK 1991 CBD ^N S., X44 ��^ St. fs
UNSIGNALIZED S
- MAJOR STREET RUNS EAST / WEST
U N S I G N A L I Z E D C R I T I CAL GAPS
APP
EB
WB
NB
SB
CRITICAL GAPS (SEC)
LEFT TURN • THROUGH RIGHT TURN
5.00
5.00
6.50
6.50
IOW OM
6.00 5.50
6.00 5.50
V O L U M E A L L O C A T I O N T O L A N E S
LANE 1 LANE 2 LANE 3
APP L T R L T R L T R
EB 6 74 7 0 0 0 0 0 0
WB 11 116 2 0 0 0 0 0 0
NB 4 2 4 0 0 0 0 0 0
SB 3 2 7 0 0 0 0 0 0
APP
EB
WB
NB
SB
U N S I G N -A L I Z E D
LANE 1 -LANE 2 LANE 3
RESERVE CAPACITY 1061
LEVEL OF SERVICE A
RESERVE CAPACITY 1091
LEVEL OF SERVICE A
RESERVE CAPACITY 818
LEVEL OF SERVICE A
RESERVE CAPACITY 847
LEVEL OF SERVICE A
MAJOR STREET - EB /WB
DAVID I. HAMLIN & ASSOCIATES 4/6/1989
INTERSECTI ON III PLAT OF TUKWILA JUNCTJUNCTION, DPS144
S. 144TH STREET @
S. 144TH STREET @
57TH AVENUE S. @
57TH AVENUE S.
WEEKDAY PM PEAK 1991 CBD ?N
UNSIGNALIZED
- MAJOR STREET RUNS EAST / WEST
T R A F F I C & R O A D W A Y C O N D I T I O N S
GRADE HV ADJ. PKG LN. BUSES CONF. PEDS PED BUTTON ARR
APP (7.) (7.) Y/N Nm (Nb) PHF (peds /hr) Y/N SEC TYPE
EB -4 0 N 0 0 0.90 0. N 0.0
WB 4 0 N 0 0 0.90 0 N 0.0
NB 0 0 N .0 0 0.90 0 N 0.0
SB 0 0 N 0 0 0.90 0 N 0.0
3
3
G E O M E T R I C S / V O L U M E S
LANE GROUPS
VOLUME 1 2 3
APP LT TH RT MVM LNS WD MVM LNS WD MVM LNS WD
EB 6 74 7 LTR 1 16.0
WB 11 116 2 LTR 1 16.0
NB 4 2 4 LTR 1 11.0
SB 3 2 7 LTR 1 11.0
COMPUTATION SHEET
ESM inc.
A CIVIL ENGINEERING, LAND SURVEY, AND PROJECT MANAGEMENT
CONSULTING FIRM
941 Powell Ave. SW, Suite 100 Renton Washington, 98055
(206) 228-5628
JOB NO. 344-64" — a,/ DATE TEE 1,09 SHEET / OF 3
JOB NAME 7 uKtNiL4 `JUN / /C�O/V
COMP. BY /R OChW eik� /�CHK. BY
CONTENTS /T�i�/ -6 Lo air -/ /�i/yf!/nar}/ Z2e5/ .41.
TUKWILA JUNCTION
Preliminary.. Design _.
HYDRAULIC STUDY OF DETENTION REQUIREMENTS
COMPARISON OF R -1 12000 AND R -1 7200 _
DEVELOPED PLAT CONDITIONS
COMPUTATION SHEET
ESM inc.
A CIVIL ENGINEERING, LAND SURVEY, AND PROJECT MANAGEMENT
CONSULTING FIRM
941 Powell Ave. SW. Suite 100 Renton Washington. 98055
(206) 228 -5628
�
/ /
JOB NO. 96.4-4-g,/ �,/ �'8%� DATE /� •49 SHEET Z OF
JOB NAME U -� ^/ /L/� %. - UNGr v
COMP. BY R, ,271 c/I/uc�,l / CHK. BY
#ydvoJyy Re/,r,.
CONTENTS
Pur
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�QE�sM,N'm y ,l�,l�s 6nl
7 4rla z& 7--he propc�s'ed p /a� for- Qe7*7" mil /P uiie/v/es��5
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/"lefhool � ,a/iona/ Ndhad
Char itIncca /e_. %l rte oai/5.
73-/-a/ 5- fe Area ; 393 odes
0,77 acre.5
3/6 act es
T ;! Gc/ 4rea
/✓ . 01 Lo 71-s ,ae,- Z-0/7%/?9
-/ /Zpdo
R -/ 72oo
S.1443Xi 5641Zoe7o
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.sum e
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'4'ie5 24/5 sit Cf
/448 --� // Z.:3AS
/6--. etc7z4a/ / 7 /66.
71ir, 'er✓ioas area , 37 Sx5a = /875
azoeq 30 x /63= 5`46 0'. -101 % rrn p {r✓iurt s
37
/
fiaaacia
Snip, 74ra°Q
It ;pi
Asume ,1ha / hams
house en v to e _ %s
4& 75' ' Z.00 '
3 car- 9av�4. is 30 "At '- 900
Pouse
•
24"
3.5%
/akyer /I? a„ 17 4 eer7Ps diy
3L = 768 .!2; /74 and
s�. ,e74- . Drlrewoy
out a't'e -fir
99 4
77;/721 = 3668 7.• Rf
'"_i' area = -3o. 6 y or (� {-
3I.5c}Lack
COMPUTATION SHEET
ESM inc.
A CIVIL ENGINEERING, LAND SURVEY, AND PROJECT MANAGEMENT
CONSULTING FIRM
941 Powell Ave. SW, Suite 100 Renton Washington, 98055
(206)228.5628
JOB NO. 366- 0¢ --69/ DATE 009 SHEET 3 OF
JOB NAME QQ77/kW (L4 c�J /167/7C/1/
COMP. BY 1% ,,17 �. a )2WQ(`'/ CHK. BY
CONTENTS // drO /c y , d 4/71.
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3668 x ./I =- 40,.348 sq 2¢/9 x i7= 9/ oonSs7, A
d9erer/ce o7 707 s2,1X
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la Ire ed r e/ 5ecau4se off /-he /ac4 cs-71' S:7n / h Cavil » c re a c e-
iri rune dere /o cd %rt ca41,00 fli7ci d /z'n72 dcvelo ed
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6 !erect e ere .based upon fhe cessc�wt fion
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area shat/ 4674 be ahang?a/ s- 4,f/caw
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since e a71her
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tie T 'cc/, /9 �rlc74roi/ /�
•
SHEI.O. 10
KING COUNTY AREA, WASHINGTON
(DES MOINES QUADRANGLE)
� k6.8908ie077).
PERMANENT SANITARY SEWER AND WATER EASEMENT
THIS AGREEMENT is entered into betveen Carl H. Bergstrom and Mary Kathleen Bergstrom,
hereinafter referred to as "Grantor", and Starbov Builders, Inc., hereinafter referred t as "Grantee ".
WHEREAS, the Grantee is in the process of securing a rezone to R -1 -7.2 end preliminary end foul
plat approval from the City of Tukwila for the proposed development of Tukvila Junction on
property commonly referred to as the Sveeney end Landstrom properties, located south of and near
to the Grantor's property; and
WHEREAS, as part of such consideration, a sever line is needed for the proposed homes and the
existing neighboring residences along 57th Ave. South, and a vater line connection to S. 150th Street
maybe necessary to provide adequate pressure and fire floe to the plat of Tukwila Junction; and
WHEREAS, the Grantee desires io obtain the right to locate, construct, and permanently operate,
access, maintain, and repair the sanitary sever and vater line across Grantors property with the
intentions to dedicate the responsibility to permanently operate, access, maintain, end repair said
utilines to the City of Tukvila upon final plat approval; end
WHEREAS, the Grantor has indicated a villingness to convey a permanent easement for these
purposes, over, along and across certain property vaned by the Grantor, es further described herein,
all upon certain terms and conditions contained herein; nov, therefore,
THE GRANTOR AND GRANTEE HEREBY MUTUALLY AGREE AS FOLLOWS:
1. Easement Conveyance: The Grantor hereby conveys and grant to the Grantee, its
successors and assigns, a permanent nonexclusive sanitary sever and vater easement across, along,
in, under and upon that certain property vhich is described as follovs:
The vest 20 feet of the south 177 feet of the following described property:
Tract 19, B rookvale Garden Tract, except the south 8 feet thereof end except the north 158
feet of the south 166 feet of the east 172 feet thereof as recorded in Volume 10 of Plat, page
47, records of King County, Washington; and land as described in Record of Survey in
Book 28 at page 67, records of King County, Washington, Auditors File Number
8106239007, situated in Section 23, Township 23 North, Range 4 E.W.M. , King County,
Washington.
Subject to easement~, right- of -vay, reservations, and restrictions of record.
2. Purpose /Rights: This easement grant the Grantee the right to locate, construct, reconstruct,
install, permanently operate, maintain and repair a sanitary sever and vater line vithin the property
descnfed in Paragraph 1 above, under the terms and conditions set forth in this Agreement, together
vith the right of ingress and egress thereto for the purposes stated. No other use or purpose is
intended, implied, or granted.
3. Costs of Construction and Maintenance: Grantee shall be fully responsible for and bear
and promptly pay all cost and expenses of construction and maintenance of the sanitary sever and
vater line unless and until the sanitary sever and vater line b dedicated to the City of Tukvila, in
vhich case the City shall assume said responsibility.
4. Release and Indemnity: Grantee does hereby release, indemnify and promise to defend end
save harmless Grantor from and against any and all liability, loss, damage, expense, actions and
claims, including cost and reasonable attorneys' fees incurred by Grantor in defense thereof,
asserted or arising directly or indirectly on account of or out of acts or omissions of Grantee and
Grantee's servants, agents, employees and contractors in the exercise of the rights granted herein;
PROVIDED, HOWEVER, this paragraph does not purport to indemnify Grantor against liability for
damages arising out of bodily injury to persons or damage to property caused by or resulting from the
sole negligence of Grantor or Grantor's agents or employees.
In furtherance hereof Grantee will require that all contractors doing vork on the sanitary sever and
vater line installation carry liability and property damage insurance, vritten on an occurrence basis,
covering all vork done, including that done by subcontractors. This insurance shall name the
Grantee as co-insured and shall be primary coverage. This insurance shall include a $500,000 or
greater limit for an aggregate combined bodily injury and property damage. An insurance policies
shall contain a provision prohibiting cancellation of said policy except upon thirty (30) days prior
vritten notice to Grantee.
5. ComulianeelWork Standards: The Grantee shall be responsible for compliance vith an
applicable environmental lays, permit and approval requirements, and acceptable construction and
operation practices during the life of this Agreement All vork to be performed by Grantee on
Grantors property shall be completed in a careful and vorkman like manner to Grantor's satisfaction,
free of claims or liens.
6. Timing: The folloving time limits shall apply to this easement and rights grained therein.
Failure to meet these time limits shall render this Agreement null and void, unless an extension
thereof is granted as provided for in Paragraph 12 of this Agreement:
a. The Grantee shall obtain City of Tukvila approval for a rezone to R -1.7.2 and
preliminary plat for the Sveeney and Landstrom properties on or before June 30, 1990;
b. The Grantee shall obtain City of Tukvila approval for final plat on or before June 30,
1991. All sanitary sever, vater line, and xoadvay construction vork described in Paragraph 15
Consideration belov, shall be completed and dedicated to the City of Thkvila by June 30, 1991. All
Restoration work described in Paragraph 7 belov shall be completed by June 30,1991 or vithin
thirty days of the completion of construction of the sanitary sever and vater line, vhichever date is
earlier.
7. Restoration: The Grantee shall restore the area included in this easement upon completion of
the sanitary sever and vater line installation, and upon any subsequent maintenance end repair or
reconstruction of said sanitary sever and vater line. Grantee shall also restore property at 14933
57th Avenue South disrupted es a consequence of side sever installation described in Paragraph 15.a
of this Agreement Restoration shall include:
1). The complete removal of all equipment and debris;
2). Grading at a slope no steeper than 1.5h:ly; and
3). Hydroseeding of all disturbed areas. Grantee shall restore the surface of the property as
nearly as possible t the condition in vhich it vas at the commencement of vork, approximating to
the extent practicable the natural drainage characteristics vhich existed prior t said vork, end shall
replace any property corner monuments, survey references or hubs vhich were disturbed or
destroyed during construction or repair.
8. Hours of Use: Construction vithin this easement, starting or idling of equipment, use of the
easement for normal maintenance and repair purposes, and restoration vork described in Paragraph 7
above, shall be limited to the hours betveen 7:00 a.m. and 5:00 p.m., Monday through Satuniay.
No constmction or use shall occur on Sundays. In the event of emergency, these time restrictions
shall not apply.
9. Equipment Storage: Except for periods of time When the Grantee is actively constructing,
maintaining, inspecting, or repairing the sanitary sever and/or vater line on Grantor's property,
Grantee shall cause no vehicles, materials, or equipment to be stored, parked, or otherwise left on
the premises.
10. Access /Private Use: This easement shall not preclude use of the land within the easement by
the Grantor or his invitees, provided such use is of a nature vhich does not interfere vith the rights
granted to the Grantee by this Agreement. Alloyed usage includes, but is not limited to, private
access, pathvay for bicycling, lofting, Bing, or venting, or yard area. Grantor shall erect no permanent
building or stricture on the surface of the easement.
11. As -Built Survey: Upon Grantor's request, Grantee shah promptly provide Grantor vith as-
built dravings and a survey shoving the location and depth of the sanitary sever and vater line on
Grantor's property.
12. Extensions: Extensions of time for construction of the sanitary sever and water lire may be
granted under such terms and conditions negotiated by the Grantor and Grantee at the time such
extension is requested. Nothing in this Agreement shall require the Grantor to grant an extension of
time to this Agreement.
13. Termination for Breach: In the event Grantee breaches or fails to perform or observe any
of the terms and conditions herein, excepting terms and conditions relating to timeframes as provided
in Paragraph 6 above, and fail t cure such breach or default vithin ninety (90) days of Grantor's
giving Grantee vritten notice thereof, or, if not reasonably capable of being cured within such ninety
(90) days, vithin such other period of tune as may be reasonable in the circumstances, Grantor may
terminate Grantee's rights under this Agreement in addition to and not in limitation of any other
remedy of Grantor at lav or in equity, and the failure of Grantor to exercise such right at any time
shall not valve Grantor's right to terminate for any future breach or default. In the event Grantee
fails to meet timelines specified in Paragraph 6 above, this Agreement shall become null and void,
vithout notice, immediately upon such failure, unless an extension of time is granted as provided for
in Paragraph 12 above.
14. Release of Obligations on Termination: No termination of this Agreement shall release
either parry from any liability or obligation vith respect to any matter occumng prior to such
termination, nor shall such termination release Grantee from its obligation and liability t remove the
sever line and vater line from Grantor's property and restore the premises.
15. Consideration: As consideration for the easement contained herein, Grantee agrees to the
folloving:
a. Grantee shall activate the existing dry sever line in the 14900 block of 57th Avenue South
es part of Grantee's development of the Landstnom/Sveeney property, and shall connect the
residence at 14933 57th Avenue South to said sever line. The route of the side sever connecting
said residence to the sever line shall be determined jointly by Grantor and Grantee at the time of
installation. Grantee shall be responsible for and bear the cost of all materials, labor and initial City
side -sever permit and connection fees related thereto.
b. As part of Grantee's development of the Sveeney property, Grantee shall propose and
receive City approval for the extension of either a 40 or 50 foot vide publicly -ovned street right -of-
vay to the common property lire of the Bergstrom/Sveeney properties. The full right- of -vay width
shall be extended to said common property line, with the vest edge of the northern terminus of said
right- of -vay to be located a distenc a of 120 feet east of the southwest corner of Grantor's property.
The right of -day shall be fully improved to City standards for its entire length, at no cost to the
Grantor, and
c. The Grantee shall extend the sanitary sever and dater line b, and provide extension stubs
at, the common Bergstrom!Sveeney property line in the right- of -vay referred t in Paragraph 15.b
above. Said sever and vater lines shall be of a size, depth, and grade necessary to fully serve a
future full subdivision of Grantor's property, and
d. The Grantee shall reimburse the Grantor up to $1500 for actual consultant expenses
incurred in researching, preparing, negotiating, and executing this Agreement. Such reimbursement
shall be due and paid after both pares have signed this Agreement, and prior to its recording.
16. Assignment: Grantee shall not assign its rights hereunder, except to the City of Tukvila,
without the prior vntten consent of Grantor, vhich consent shall not be unreasonably vithheld. No
assignment of the privileges and benefits accruing b Grantee herein and no assignment of the
obligations or liabilities of Grantee herein, whether by operation of lav or otherwise, shall be valid
without the prior vritten consent of Grantor, except ea the City of 'Ilikvila, vhich shall not be
unreasonably vithheld. Use of the Easement by Grantee's employees, agents, servants, contractors
and subcontractors shall not be considered an assignment.
17. Binding Effect: This easement shall be in effect upon recording vith the King County
Recorder, and shall run vith the land described herein. Said recording shall occur vthin two
business days after its signature by ell parties thereto and Grantor's receipt of reimbursement for
expenses as provided in Paragraph 15.d above. Within said two business days, Grantor shall
provide proof of recording of this Agreement Subject b the preceding paragraph, the rights and
obligations of the parties shall inure b the benefit of and be binding upon their respective successors
and assigns.
DATED this 17 day of ,1989.
GRANTOR
CARL H. BERGSTROM
STATE OF WASHINGTON )
COUNTY OF KING )
I certify that there appeared before me persons that I know or have satisfactory evidence vere
Carl H. Bergstrom and Mary Kathleen Bergstrom, vho signed this PERMANENT SANITARY
SEWER AND WATER EASEMENT end ecknovledge it b be their free and voluntary ect for the
uses and purposes mentioned in thIS instrument
DATED this r�, •`::.-hay_of /�i x/,5-7'
G�—
N TARY PUBLIC in and
Washington residing at
My appointment expires:
or the.State of
W ; t ' ; fer, ice P
Starbov Builders, Inc.
�J �{ S ,/o -i1
Goa` IA/A/ ,pOd 5
City State Zip
Phone: 41W- lvq -2,
Address:
Corpora Seal
STATE OF WASHINGTON )
COUNTY OF KING )
•
I certify that there appeared before me a person that I knov or have satisfactory evidence vas
Walt Schaefer, vho signed this PERMANENT SANITARY SEWER AND WATER EASEMENT,
and on oath stated that he is authorized t execute said instrument and ecknovledged it es Vice-
President of Starboy,Bwl*q Inc..v be his free and voluntary act for the uses and purposes
mentioned in th ► xA .,, •
DA '$P: .' . %t of • . C , . 989.
: _, __,Wits ai- 1.1
i : = 6t fil
L$OTARY PUBLIC in
Washington residing at
My appointment expires:
711-0 pcika
NOTES
1. UTILITY LOCATIONS 5NOWN WEDS OCTERYINED (ROY AvILABLE PUBLIC
RECORDS.
/ — E• SSW
NR I. S' CONTOURS AND EXISTING STRUCTURE LOCATIONS WERE DETERMINED
i(. • .T
15 73 (ROY ENSTING PUBLK RECORDS - NOT • PELD SURVEX.
•�- ,
3 41 1TORO RAT[} PACE! RILL ■ D•ECTED TO ENV ow IT Co..
C55 15-If
• 5NI11ART WING S 95700 TO t NIOIIOCD h LIO SI 1•9104 I•EIMATIG• 17. (ITT 0 Tu DILA
21-SD 5 RAT[R WOW; TOR MONO[D Of [AISTIK t RAID AT ST• AIIE. s
S. 1 50th St. f 751571151585191195* MST too RITN• soft TO < OE pl»O
SCALE: 1' = 40'
0
U
z
V1
354 35:100015
0
STARBOW BUILDERS,
JUNCTION
PRELIMINARY SITE PLAN
LEGEND
— MDPOWO r COWMEN
— ADJACENT TAX LOT PARCELS
— W — — En5T. WATER LINE
— SS — — EXIST. SANITARY SEWER LINE
— G -- — (PST. GAS LINE
— SD — — EXIST. STORY DRAIN LINE
— T — — EXIST. TELEPHONE LME
— EXIST. EASEMENT LINE
cry OF TUKWILA
City OF Tukwila 0
Jrt
PLANNING DEPARTMENT
6200 Southcenter Boulevard
Tukwila, Washington 98188
(206) 433 -1849
July 3, 1989
Bret Cummock
941 Powell Avenue S.W.
Suite 100
Renton, WA 98055
RE: 88 -1 -SUB: Tukwila Junction Preliminary Plat
Dear Mr. Cummock:
We have received your request for an extension of a June 30, 1989
deadline. Due to some confusion with regard to your project, I would
like to clarify and provide some guidelines for you.
First, we had not given you a deadline for completing your submittal.
Mr. Umetsu's January 6, 1989 letter merely listed the necessary
information we need to start a review.
Second, we are required per our Subdivision Ordinance, TMC 19, to hold a
public hearing no more than sixty days from receipt of plat application.
Third, we do not have an environmental checklist nor receipt of the
minimum information necessary for a plat review or public hearing.
Finally, the City Council will be holding a public hearing on your rezone
request on Monday, July 17, 1989. Their formal decision should be made
by August 7, 1989. Monday September 11, 1989 is the application deadline
for the October Planning Commission meeting. Therefore, you must submit
all the required information by the 'llth of September or your preliminary
plat file will be closed. Since you submitted your request in December
1988, we have not seen adequate evidence of plat progress, and there
seems to be an actual cut back in efforts due to segregation of
rezone and plat.
We feel this time frame and the time which has already expired is more
than adequate for completion of the necessary documents and easements.
You have the option of applying at any time, subject to submittal
requirements.
If you need assistance or have questions regarding procedures or platting
requirements, please feel free to call me or Darren Wilson at 433 -1849.
Si • cerely,
ir.- C radshaw
Associate Planner
mcb /wb
• •
City of Tukwila
Public Works
Street & Roadway Standard-Plans
' Nay 3, 1989
CITY OF TUKWILA
PUBLIC WORKS STREET AND ROADWAY
STANDARD PLANS
GARY L. VAN DUSEN, MAYOR
COUNCIL MEMBERS
Marilyn S. Stoknes, President"
Edgar D. Bauch
Joan Hernandez
Joe H. Duffle
Clarence 8. Moriwaki
Mabel J. Harris
Dennis L. Robertson
Prepared by
PUBLIC WORKS DEPARTMENT STAFF
10'
Utility
Easement
Right -of -Way (Varies )410
Sidei,a k & Lane Widths Var
2% 2%
2 " -3" min. Class B Asphalt Concrete
4 " -6" min. Crushed Surfacing
12" min. Class 9 Bank Run Gravel
Cement Concrete Curb and Gutter
Cement Concrete Sidewalk
10'
Utility
asement
1. All specifications as per the combined specifications prepared
by the Washington State Department of Transportation and the
American Public Works Association, Washington State Chapter
entitled "1988 Standard Specifications for Road, Bridge, and
Municipal Construction ". _
2. See Zoning requirements for the sidewalk and lane widths.
3. See Zoning requirements for the right -of -way width.
PUBLIC WORKS
DEPT.
1
1
1
1
Typical Roadway Section
(Cilous;y DEPTH
JONT
WARNING STRIP .
x 3r SHRINKAGE CONTROL JOINT
WHEELCHAIR RAMP
(DUMMY JOINT
5'\ 5'
NOTES:
3" WIDE EDGER FINISH
FULL DEPTH EXPANSION
JOINT BACK OF CURB
15' BETWEEN FULL i
DEPTH EXR NSION JOINTS
TYPE 'A' CURB VARIES _
-�. '
& GUTTER —22—
� - --";�
e ; THICKENED EDGE
SECTION A -A
1. SIDEWALK WIDTH SHALL BE 6' MIN. 5' IS ACCEPTABLE IN RESIDENTIAL AREAS.
2. SHRINKAGE CONTROL JOINTS SHALL BE PLACED EVERY 15', DUMMY JOINTS EVERY 5'.
3. CEMENT CONCRETE SHALL BE PLACED ON COMPACTED SUBGRADE IN ACCORDANCE WITH
SECTION 8 -14 OF THE 1988 APWA /WSDOT STANDARD SPECIFICATIONS.
1
1
LAmmul\U P' 1-TERN
WITHOUT Fir: 9,_0„
"z„ MAX, TO
W MIN. LIP
L) 3 =p„
6' TYPICAL
5'
NOTES:
' 4" THICK CEMENT CONCRETE SIDEWALK
18 THICKENED EDGE
6" THICK GUTTER
1. RAMP AND APPROACHES SHALL BE CLEAR OF OBSTACLES INCLUDING HYDRANTS,
POLES AND INLETS.
2. RAMP CENTER -LINt SHALL BE PERPENDICULAR TO OR RADIAL TO CURB RETURNS
UNLESS OTHERWISE SPECIFIED BY THE ENGINEER AT A 12 :1 MAX SLOPE.
3. FULL -DEPTH EXPANSION JOINTS ARE REQUIRED ON EACH SIDE OF RAMP AND
SHALL BE PLACED AT 15' SPACING IN GENERAL SIDEWALK PORTION.
4. CURB RAMPS SHALL BE PLACED TWO PER RADIUS ON ARTERIAL STREETS OR AS
DIRECTED BY THE ENGINEER.
5. ON RESIDENTIAL STREETS AND /OR WHEN UTILITIES ARE IN CONFLICT OR STREET
GRADE EXCEEDS 4.0 %, CURB RAMPS MAY BE CONSTRUCTED ONE PER RADIUS AT
MIDPOINT OF CURB RETURN OR AT MAIN PEDESTRIAN PATH.
1
1
1
1
■
I
6'
2' -O' _
6' -O "MIN
,- EXPANSION JOINT
2%
SECTION A - A
EXISTING DRIVEWAY
TOP OF CURB
AT DRIVEWAYS
sI
5%
2' -O"
Z
11
1"
NOTES:
1. CONCRETE SHALL BE A 5 SACK MIX WITH 5% AIR ENTRAINMENT.
2. INSPECTION REQUIRED BEFORE PLACING CONCRETE. AT LEAST 24 HOUR NOTICE MUST BE
GIVEN TO TUKWILA PUBLIC OORKS.
3. ALL DRIVEWAY APRONS SHALL BE A MIN. 6" THICK.
4. WHERE DRIVEWAY WIDTHS EXCEED 15', A 3/8" MINIMUM EXPANSION JOINT SH
BE PLACED LONGITUDINALLY ALONG THE CENTERLINE. ALL
5. ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH APWA /WSDOT PLANS AND
SPECIFICATIONS OR AS DIRECTED BY THE CITY OF TUKWILA.
PUBLIC WORKS
DEPT.
STANDARD RESIDENTIAL CEMENT
CONCRETE DRIVEWAY
1
1
1
DUMMY JOINTS
EXISTING DRIVEWAY
EXPANSION
JOINT
EXPANSION JOINT ELIMINATED
IF GUTTER & APRON ARE
POURED MONOUTHIC
SECTION A -A
NOTES:
EXISTING DRIVEWAY
PLANTING STRIP
TOP OF CURB
AT DRIVEWAYS
fiI
5%
6'
2' -0"
1
1. CONCRETE SHALL BE A 5 SACK MIX WITH 5% AIR ENTRAINMENT.
2. INSPECTION REQUIRED BEFORE PLACING CONCRETE. AT LEAST 24 HOUR NOTICE MUST BE
GIVEN TO TUKWILA PUBL WC ORKS.
3. ALL DRIVEWAY APRONS SHALL BE A MIN. 6" THICK.
4. WHERE DRIVEWAY WIDTHS EXCEED 15', A 3 /8" MINIMUM EXPANSION JOINT SHALL
BE PLACED LONGITUDINALLY ALONG THE CENTERLINE.
5. ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH APWA /WSDOT PLANS AND
SPECIFICATIONS OR AS DIRECTED BY THE CITY OF TUKWILA.
PUBLIC WORKS
DEPT.
COMMERCIAL DRIVEWAY
i
1
1
F. LEXIBLE PAVEMEN .'ATCH
Existing
Oil Mat
Existing
Asphalt Concrete
Surface
Existing
Asphalt Concret
Surface
RIGID PAVEMENT PATCH
smisimps
4"
Existing
Concrete
Pavement
LEGEND
f•
Existing
Concrete
Pavement'
= Asphalt Concrete Pavement
= Portland Cement Concrete Pavement
= Compacted Select Backfill
= Compacted Trench 8ackfill
PUBLIC WORKS
DEPT.
Pavement Patch
•
ASPHALT CONCRETE OA BITUMIOUS
PLANT MIX REPLACEMENT PATCN
REMOVE LOOSENED ASPHALT
TRIM VERTICALLY
XISTING ASPHALT PAVEMENT
CONCRETE
•
CUT SHALL Al VERTICAL AND IN
STRAIGHT LINES AS DIRECTED.
EXISTING CONCRETE PAVEMENT
:XISTING AIG10 BASE
41.
COMPACTEO TRENCH BACKFIIL
ASPHALT CONCRETE OA BITUMINOUS
PLANT MIX PAVEMENT REPLACEMENT
PATCH
JT WITH PNEUMATIC PAVEMENT CUTTER
EXISTING ASPHALT
PAVEMENT
A L T E R N A T E 'Al
_ THICKNESS OF EXISTING
PAVEMENT PLUS 2"
s
COMPACTED CRUSHED ROCK
TYPE No. 2, WHEN 0A0EAED
AY THE ENGINEER
CUT SHALL 0E VERTICAL
ANC IN STRAIGHT LINES
AS 0IRECTED
EXISTING CONCRETE
PAVEMENT
XISTING RIG10 BASE
WHERE PATCH IS 4' OA
MORE IN WIDTH
-.... WHERE WIDTH OF PATCN•IS
LESS THAN 4$
— COMPACTED SELECT MATERIALS
COMPACTED TRENCH BACKFIIL -'
R1G10 PAVEMENT WITH ASPHALT
CONCRETE SURFACE
12" VAAIASLE
A L T E R N A T E ' B,
— CEMENT_CONCRETE PAVEMENT —
T Y • P I C A L P A T C H F 0 * * 1 0 1 0 P A V E M E N T
ASPHALT CONCRETE OA BITUMINOUS
PLANT MIX REPLACEMENT PATCH
'EXISTING OIL MAT
2" MIN
EXISTING ASPHALT CONCRETE
SURFACE
1
6" MIN
COMPACTED SELECT•MATEAIAL
or
LEAN CEMENT CONCRETE
(Commerci:alryipqqtrial►aj1¢ giterFiglR str2CeM)i e l E
GENERAL NOTE:
CONCRETE MIX SMALL BE CLASS 6.$(I- I /2)H,E.S.
OA CLASS 5(1-1/2) WHICHEVER 1$ SPECIFIER.
Ici
EXISTING BASE
COMPACTED TRENCN DACKFILL
P A V E M E N T
00 NOT SCALE
PUBLIC WORKS I
DEPT.
Pavement Patching
0
sEAL
1IV130 H3 )IHVW 3NV1.
TYPE 1 DOUBLE YELLOW
18'
0 0 0 0 0 0
0:6000000
0
0 0 0 0 0 0 0
00
• 0 0 0 O
O 0 0 0
1
008
0
10 0 0 0
0 0
12" THERMOPLASTIC. STOP BAR
TYPE 2d REFLECTOR . 18' 30' VARIES
0 0 0 0
0 0
0
0
0 0 0 0 9 0 0 8 Q 0 0 0 0 0 0 0 0 0 Q 0 0 0 0 0 0 0 0 0 0 0
X00 000
0 0
00— 0 0 0 8 / 1TYPE 1 DOUBLE WHITE
00,00 0 0 THERMOPLASTIC ARROWS �� TYPE 2e
1.8 888888888 t13 8888888 8
TYPE 2a BI- REFLECTOR WHITE AND RED 30' r_._r�� 3'
12'BUTTONS
28' SKIP
? 0 0 0
?
TYPE 1 WHITE
0 0 0 0 0
1.5'
CURB & GUTTER
0 0 0 0 0
12'
12'
TYPE 1 YELLOW
0 0 0 0 0
•
F 12'
o 0 00
3'
30'
0 0 0.0
TYPE 2d YELLOW & YELLOW
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 00 00 0 00 0 0 0 0
L0 0 0,01.
12'
00 0 0
30'
3'
00 0 0
O 0 0 0 0 0 0 0 0 0 0 0 0
0
O 0 0 0 0
O 0 0 0 0 0
O 0 0 0 0
....- THERMOPLASTIC ARROWS
0 0 0 0 0 0 0 0 0 0 0 0 00 0 0
TWO WAY LEFT TURN LANE
11'
11'
10'..
NOTE: ALL TRAFFIC ARROWS, TYPE I
BUTTONS & TYPE II REFLECTORS SHALL
MEET THE REQUIREMENTS OF THE
APWA /WSDOT STANDARD SPECIFICATIONS
AND DETAILS.
•
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•
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712..7/V07 0 550,7.7
rr0,£ . •bS.1 ;2X.9;2
07.rdS .47NJ,2 74'09 1. • 9
'SNO /1 r7/d,.7g 9
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(070- 7.'/8) Z
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( 44'74 .X.:.').1//70/1,0.7 '725 i17r9 - / 4,31ivre, .!/r
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X.707 71 S 417'9_ / //1 /$ 71774&."0.2 £S /d'
W1Sr .X.;11 >l7r9. 0/ d01 d'7 5Sr7. •C O£r
d'Jd SOr7J'N1 14. YO 07770.Y , Z/0 O
7.7,w. ' 7 701 ON/70• !0 1/70 . I/O 7 806 0
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wire .170, 4'04',74'' 72315 .7N8- /(0)
7/11.3(7 3X26'4' /W/7 7
i
CHASE NIPPLE
OPTIONAL
'4" NIPPLE
BUSHING
LOCK NUTS
TEEL POLE
rix 1 \11 CHANNEL
•
24" PLUNGER
WITH CHROME
FINISH
PUSHBUTTON ATTACHMENT
INSTALL SIGN
CLAMSHELL •
MOUNTING—
1
TERMINAL BOX
USE Z- CRATE. VISOR
19AS
-41
PAINT ARROW ON
PUSHBUTTON (2 SIDES & TOP)
PUSH BUTTON TO ACTIVATE
WALK IN THIS DIRECTION
INSTALL PUSHBUTTON 42d FROM GROUND
INSTALL 8' FROM GROUND
PUSHBUTTON POSITION
UBLIC WORKS
DEPT.
PEDESTRIAN SIGNALS
1,11
•
J
1
F
11
1
TOP VIEW - FRAME 4 cv!�
A/ea r
.VaeA.;.o "swot of Caw,.
Co,.44.. 44.9 be y.,.y .iv.. ,. s
r.a
pot.qA4M 4. Cleo' .b, one *4001
f.n i�.w /wlhi. Ie .fPbcOb /O.
spot.. ass ?These Spec. hav4erss.
5ECTION — FRAME t COV'E!'.
5OTTOM VIEW OF CLOVER
tit; Nov ScALS
PUBLIC WORKS I
DEPT.
Mbnument Frame And
Cover
T
6
•
4' MAX.
BACKFILL (SEE
SPECIFICATIONS)
2:1 MAX. SLOPE
4" PERFORATED
DRAIN PIPE
PEA GRAVEL
12" MIN
i
12"
4' MAX.
BACKFILL SEE
SPECIFICATIONS
4" PERFORATED
DRAIN PIPE
PEA GRAVEL
CONCRETE SIDEWALK
1"-2" MIN CONCRETE
1
1" GRAVEL
1 2"
0 TO 1'
PUBLIC WORKS
DEPT.
ROCK RETAINING WALL
•
= 30'
PUBLIC WORKS
DEPT.
CO1ALAINTS ACTIVITY ..,OG
DATE "T". COMMENTS
/86 A e igRAgti) A Aitede ec e7-7
. ' F o "1/Z. "eel 4 &,„6140,0,/
,a4ive suesizdympee.., 422.4‘70 /49.4),
9/2,0O tee' /eve 4,00)-7
4, //s /eive .
9/4 , piA5pc37 atwe
9/,,
', Zzioc) 72' 4
/04
ire tv Sim s_
#aeis o
/1=9Z.& )4h4r _V-lie •
)2`22 i- .� .�� -,� /�,5 7b cow
//0 .4-44191/ 4 v /lion ./4M/ /z /4,/d� -,4?
bh /910,291,
A . disc&ss re
0.4/ z4 /z /z, /ff 490161
f �lr��iG
//Obi Az; 'Aim I Sy4'2v7'` ) dfr z'V2,
ink z e z/1,7 . ,v /// , ?*
fiim/er sS��Y.