HomeMy WebLinkAboutPermit L95-0016 - PARKWAY PLAZA - TREE CLEARINGL95 -0016
PARKWAY PL.
17501 SOUTHCENTER PY TREE CLEARING
City of Tut kvvila John W Rants, Mayor
Department of Community Development Steve Lancaster, Director
October 19, 1995
Mr. Roy Bennion
Park Place Partners
800 Fifth Avenue
Suite 3700
Seattle, Washington 98104
Re Park Place
Dear Mr. Bennion:
We have received a request from your landscape architect, Shawn Parsons, to grant an
exemption as allowed in the tree regulations, TMC 18.54.050 (2) (C), for the removal of five
black cottonwood trees that are a potential hazard on the site This is to notify you that the
exemption is granted for the removal of the trees identified in the attachment to your
request. �,?'
Sincerely,
Steve Lancaster, Director
Department of Community Development
Shawn. Parson, Landplan
Diana Painter
6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431-3670 • Fax (206) 431-3665
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Landscape Architecture
. ,
September 27, 1995
City �f Tukwila;
Department of Corruntmity Development
6300 Southcenter Boulevard, Suite #100
Tukwila, WA 98188
• • •
AT'IN: Diana Painter, DCD Associate Planner
' - RE: Park Place Retail Center -- Tree Removal
Dear Diana:
Enclosed :you'll find two (2) sketches of the proposed tree removal area behind the newly installed
The five (5) trees in question, mature black cottonwood (Populus trichocarpa) trees, are all impacted
by the wall's construction. Four (4) of the trees appear to be within five feet of the wall, while a fifth
tree appears to be approximately ten feet from the back of the wall. They may have sustained some
root damage, unavoidable during wall construction, that could also ultimately threaten the survivability
of the tree. The likelihood of a "blow-down" has been increased because these trees are now
"outside" trees and no longer have the protection of "down-slope" trees. The smaller alder trees
surrounding the five cottonwood species do pose a threat due to their diminutive size allowing
prevailing winds to directly impact the cottonwood trees. I suggest that the five (5) trees in question ••
,
be removed excepting the stumps which should be left for soil stability purposes. This action should
be taken before the seasonal rains begin to minimize erosion damage and potential "blow-down".
r comments, please don't hesitate to call me.
. . . • " • ' • •
T. Shawn Parsons, R.L.A. #307
Principal/Landscape Architect
6 0 .0
• Main Street
Suite D,
Edmonds,
Washington
.9.802 0
(206) 776-4932
(Fax) 774-7803
, • •
' ' •
RECEIVED
j3C1- 0 2 1995
GOMMUNITY
DEVELOPMENT
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FAX TRANSMISSION
TO: CO"(roAGi IeiddJt. DATE: �— IS -Gjl%j
FROM: 6 0
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Suite D,
COMMENTS: e--- Edmonds,
Washington
9 8 0 2 0
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TOTAL PAGES '7-
r! OCT 18 '95 04:14PM 206 77404150
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I.ANDPIJrnI PS.
Landscape Architecture
October 12, 1995
City of Tukwila
Department of Community Development
6300 Southcenter Blvd., Suite #100
Tukwila, WA 98188
ATTN: Diana Painter, DCD Associate Planner
RE: Park Place Retail Center - Tree Removal
Dear Diana:
As a result of our meeting yesterday, I would like to "augment" my letter dated September 27
which addresses the removal of five black cottonwood trees within a `sensitive area as identified
by the city of Tukwila. Let this letter serve as a notice of the subject trees' hazardous conditions.
Hazardous conditions are evidenced by the following:
The "blow - over`. potential due to the trees' extended height beyond the surrounding "red
alder" trees.
The unavoidable Toss of root structure resulting from the wall construction.
Therefore, the city of Tukwila's tree clearing ordinance, No 1715, allows for the removal of -
hazardous trees as per an exemption from the application of the ordinance and does not require a
tree clearing permit (Section VI Exemptions, B.3. Removal of Hazardous Trees). The developers
of the Park Place complex will engage in the removal of such trees to eliminate the hazardous
condition. Such action is to occur without any further tree replacement "requirements" or
additional permits.
8 0 0
Main Street
Suite. D,
Edmond,
Washington
9.8 0 2 0
(OA) 778
(Fez) 7747608
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' OCT 18 '95 04 :12PM 206 77404150
Page 2 of 2 — Letter to City of Tukwila
1042.95 - RE: Park Place Retail Center - Tree Removal
Enclosed you will find a sketch identifying the general location of the subject trees. Please
contact me at your earliest convenience if you don't concur with the contents of this letter.
Owner may commence tree removal as early as October 16th.
Thank you.
LAIMbP1.A i
�M
Landscape Architecture
October. 12, 1995-
City of Tukwila
Department of Community Development
6300 Southcenter Blvd:, Suite ##100
Tukwila, WA 98188
TN: .Diana•Painter, DCD Associate Planner
Park Place Retail. Center - Tree Removal
Dear Diana:
As a result of our meeting yesterday, I would like to "augment" my letter dated September 27
which addresses the removal offive black cottonwood trees within a'sensitive area" as identified:
by the city of Tukwila: :Let this letter serve as a notice of the subject trees' hazardous. conditions:.
Hazardous .conditions are evidenced by the following:
The -"blow-over potential due to the trees' extended height beyond the surrounding "red
alder trees...
The unavoidable loss of root structure resulting from the wall construction:
Therefore, the city of Tukwila's tree clearing ordinance, No. 1715, allows for the removal of
hazardous trees as per an exemption from the application of the ordinance and does not require a
tree . clearing .permit (Section .VI Exemptions, B.3 Removal of Hazardous Trees) The developers..
of the Park Place complex will engage in the removal of such trees to :eliminate the hazardous
condition. Such action is to occur without any further tree replacement "requirements" or
additional permits.
Main Street
Suite D,
Edmonds,,
Washington
8. 8: 0. 2 0
(206) 776.4932
(Fax) 7744803:
OCT .16 1995'
OOMMuwtl '.y.
DEVELOPMENT
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Page ;2 of 2- ,Letter to City of Tukwila
10-12-95 — RE: Park Place Retail Center - Tree Removal
Enclosed you will find a sketch identifying the general location of the subject trees. Please
contact me at your earliest convenience if you don't concur with the contents of this letter.'
Owner may commence tree removal as early as October 16th,:
incerely,
Shawn Parsons, R.L.A. #307.
rincipal/Landscape Architect
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P-3/PARKWAY, L.L.C. jii( 2 7 199!,i
COivio.,:uP‘;
DEVELPPIVIENT
800 FIFTH AVENUE • SUITE 3700 • SEATTLE, WASHINGTON 98104-3122 • (206) 682-6868 • (FAX) 682-1040
PF-s/
-Frce
Diana Painter
Associate Planner
City of Tukwila
6300 Southcenter Blvd #100
Tukwila WA 98188
I received your letter of July 24, 1995 regarding the ch ges in wall construction
necessitated by field conditions.
Please note that the wall changes are additional pilings to be installed between existing
pilings and the deletion of tie backs. One factor that makes this procedure work is the
natural hillside slope to the west of impacted area. It is naturally sloped 3H:1V and not
1.75H: 1V. Consequently, we are not regrading or grading additional area. The slopes
mentioned are natural and covered by the existing landscape plan.
Please call me if you have any questions.
Sincerely
£ Y,LLC
July 24, " 1995
City of Tukwila
John W. Rants, Mayor
Department of Community Development Steve Lancaster, Director
Mr. Roy Bennion
Park Place Partners
800 Fifth Avenue
Suite 3700
Seattle, Washington 98104
Re Park Place Geotechnical Addendum
Dear Roy:
I have reviewed the most recent letter from your geotechnical engineer regarding a changg
in building technology for a portion of the retaining wall on this project. I note that the
grading of the slope for this portion of the wall must be revised to a slope of 3H:1V, rather
than the 1.75H:1V as previously planned.
Please note that this additional graded area must be revegetated before final inspection
takes place on this portion of the project. This requirement is from our Sensitive Areas
ordinance, TMC 18.45.080(e)(3)(B):
Where any portion of an area of potential geologic instability is cleared for
development, a landscaping plan for the site shall include . tree replanting with an
equal mix of evergreen and deciduous trees, preferably native, . and approved by the
Director DCD. Replacement vegetation shall be sufficient to provide erosion and
stabilization protection.
Please give me .a call if you have any questions.
Sincerely,
i,a / /2 7
Diana Painter
Associate Planner
cc Joanna Spencer
Duane Griffin
Jack Pace
6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431 -3670 • Fax (206) 431 -3665
FORM;AT
City of TU' wila ApplIcatlon PRE
Central Permit .5) .. :m - E
ngineering Division
6300 Southcenter Blvd., Suite #100, Tukwila, WA 98188
94 -020
Phone: (206) 433 -0179
UTILITY PERMIT APPLICATION
Site Address: 17501 Southcenter Parkway
Name of Project: Parkway Place Retail
Center
Property Owner:
P -3 Partners L.L.C.
Street Address:
Engineer:
Street Address:
Contractor:
800 5th AVE #3700
Bush Roed Hitchings
2009 Minor AVE E
Foushee Construction
Phone No.:
City /State/Zip:
Phone No.:
City /State /Zip:
Phone No.:
682 -6868
Seattle WA 98104
323 -4144
Seattle WA 98102
621 -8219
Street Address:
3620 118th SE #1000 City /State/Zip: Bellevue WA 98009
King 4Cty Assessor Acct #:262304 - 9 067/915 Contractor's License #: FOU SHAC 15 8 0 D Exp. Date: 8-12-9 5
IT:S?
0 Channelization /Striping /Signing
DI Curb Cut/Access /Sidewalk
CZ Fire Loop /Hydr. (main to vault) - No.: Sizes:
❑ Flood Zone Control
❑ Hauling
EX Land Altering 21 , n n n cubic yarns
a Landscape Irrigation
D Moving an Oversized Load
Est. start/end times:
Date:
❑ Sanitary Side Sewer - No.:
Name:
Street Address:
Name:
Street Address:
P -3 Partners
800 5th AVE #3700
SAME AS ABOVE
❑ Sewer Main Extension ❑Private ❑ Public
Xit Storm Drainage
❑ Street Use
a Water Main Extension ❑Private ❑ Public
❑ Water Meter / Exempt: - No.: Sizes:
Deduct ❑ Water Only ❑
❑ Water Meter/ Permanent - No • _ Sizes•
❑ Water Meter / Temporary: - No.: — Sizes:
Estimated quantity:
Schedule:
14 Other: '-r �4 th`�1�1 Lqc:;.. 010
Phone No.: 682 -6868
City /State/Zip: Seattle WA 98104
Phone No.:
City /State /Zip:
❑ Water
❑ Sewer
❑ Metro ❑ Standby
OESCRIP.TION OF
❑ Single - Family Residential
❑ Multiple - Family Dwelling
No. of Units:
❑ Commercial/Industrial
❑ Hotel
❑ Motel
El Office
® Retail
El Duplex
❑ Triplex
❑ Warehouse
❑ Manufacturing
❑ Apartments
❑ Condominiums
❑ Other:
MIS,CELLAN.EOUS<:
:::INFORMATION;:..
❑ New Building ❑ Remodel/
Square Addition
Footage: +164,000
King County Assessor's valuation of existing structures: $
❑ Church ❑ School /College /University
❑ Hospital ❑ Other:
Square footage of original building space:
Square footage of additional building space:
Valuation of work to be done: $
Applicant /Authoriz : • w� I Contact Person
A. n Sian. r-: (print name):
Print Name oy I . B
Date: March 15 ,
ion
9 lone: 682 -6868 RECEIV
iu
same
Address: 800 Fifth Ave
DSeattle, WA 98104 Phone: 682 -6868
Date Application Accepted:
S - cLAR 1 5
Is Application Expires: �' , f s, (4t5
PERMIT CENTER
04/22/92
P -3 PARTNERS
800 Fifth Avenue
Suite 3700
Seattle, Washington 98104
206/624 -1444
RECEIVED
CITY OF TUKWILA
MAR 1 5 1995
PERMIT CENTER
March 15, 1995
Mr. Gary Schulz, DCD Urban Environmentalist
City of Tukwila
6300 Southcenter Boulevard, Suite 100
Tukwila, Washington 98188
Re: PRE 94 -020, Park Place Retail Center
Dear Gary:
Please find attached the following:
1.) Two tree removal permit applications submitted from the undersigned to you in letter
form dated March 15,1995.
2.) Landscaping and irrigation plans and specifications prepared by Landplan P.S.
containing revised and updated site and building landscaping, irrigation and tree replacement
calculation plans and specifications.
I am also providing to you the building permit application information for your reference for
the. Park Place retaining wall including the "Addendum to the soils report", dated March 6,
1995, prepared by Geo Engineers and Plans and Shoring Calculations for the wall prepared by
CT Engineering for Donald B. Murphy, Construction.
Also included for your information is the Utility and Land Altering permit information for your
reference for proposed site grade and fill needs and site utility construction, including design
drawings and site preparation specifications prepared by Bush, Roed and Hatchings. Also
included is the Bush, Roed and Hatchings Storm Drainage Report.
We would appreciate a review by your department of the Tree Removal Permit applications
and the landscaping and inigation plans. We know that this submittal contains considerable
and complicated information. Hopefully, we have prepared and submitted all that is necessary
for a complete and efficient review. We are, as are the numerous consultants working with us,
prepared to meet, discuss and answer questions regarding the permits applied for with this
transmittal. I will follow up on this letter to confirm that you have all that you need to proceed.
Thank you for your consideration.
P-3 PARTNERS
P -3 PARTNERS
800 Fifth Avenue
Suite 3700
Seattle, Washington 98104
206/624 -1444
March 15, 1995
Mr. Gary Schulz, DCD Urban Environmentalist
City of Tukwila
6300 Southcenter Blvd.
Tukwila, Washington 98188
Re: Park Place Retail Center Tree Permits
Dear Mr. Schulz:
RECEIVED
CITY OF TUKWILA
MAR1=51995
��`
PERMIT CENTER
As required under the BAR Conditions of Approval and the City of Tukwila Ordinance
No. 1715, this letter with accompanying plans and specifications submitted by Landplan
P.S. are two tree removal permit applications. The first application applies to removal of
hillside trees that was performed in late 1994. This work was performed under a letter
application dated October 31, 1994 and submitted to the City of Tukwila. The work, soil
testing, required the creation of a hillside bench upon which the soil auger equipment
operated. The tests were necessitated by the BAR soils information requirements. The
second permit covered by this request covers the remaining tree removal functions
necessary for project development.
FIRST PERMIT APPLICATION
The first permit, applied for here, relates to the work done in 1994, and to trees removed
,()t�>, from a hillside sensitive area. A calculation of the number of trees removed and to be
replaced is provided on the Landplan drawings submitted with this permit application
sheets LTR -1. Consequently this permit falls under section VII of the Ordinance. A
current site plan has been submitted showing the information required in Ordinance
section VII,7.3. A landscape plan for the entire site is also herewith submitted.
The new landscape plans are submitted in addition to the reports already given to the City .
with the BAR application by our environmental consultant (Talasaea) and the landscape
design firm ( Landplan P.S.). The updated permit drawings detail the Sensitive Area
Mitigation Plan. Vegetation removal and replacement will commence in April, but may
not be completed until February or March of 1996. We will try to install landscaping
called for under the plans taking advantage of time of year and weather conditions. To the
extent possible, landscape installation will be delayed until fall or winter 1995 -1996. This
work is being submitted under an accompanying land altering permit. Therefore, I assume
that no additional fee is required.
D: \W IN WORD\PARKPLAC\TREEPERM.DOC/3/ I /9
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SECOND PERMIT APPLICATION
Mie second permit;: applied for:-herein;pertains.toV a id
ditional treeslo:be'removedin=;the t
sarea:tothe east of a'' proposeiiretainingwallIsee..sheet:LTR 2)4:This area is also located
in a sensitive area. Strict compliance with the provisions of the Ordinance will jeopardize
project feasibility and reasonable use of the property for this permit in that it involves the
removal of a portion of the hillside that is heavily wooded (the canopy). The landscape
plan submitted with this permit application proposes replacement and mitigation measures
consistent with the purpose and intent of the Ordinance. The granting of a canopy
removal exception .(section 7.9 of the Ordinance) will not pose a danger or be detrimental
to the public. Therefore, as discussed in the context of the BAR approval process, we
request the exception granted under section 7.9.D. Strictly speaking, under the exception,
no replacement trees are needed in that the site retains greater than 20% canopy.
However, this proposal contains landscape mitigation of a full number of calculated
replacement trees consistent with discussions held with the planning department staff and
the BAR submitted plans.
Particular attention as been paid to modifications of the BAR drawings to be responsive to
the comments made in the "Conditions of Approval" (see Landscape Drawings L1 -L5).
Redesign elements of the building facades has strengthened landscape areas, particularly
along the east, (most visible) side. Unfortunately, compliance with City of Tukwila
parking requirements has necessitated the removal of most of the mature landscaping in
the existing parking areas.
If you have any questions or comments, please call. We look forward to working with
you as we proceed ahead on the project.
I. Bennion
D:\W IN WORD \PARKPLAC\7REEPERM.DOC/3 /1/95
U'ND
RECEIVED
CITY OF TUKWILA.
Landscape Architecture MAR 1 5 1995
PERMIT CENTER
March 14, 1995
City of Tukwila
Department of Community Development
' 6300 Southcenter Boulevard, Suite #100
Tukwila, WA 98188
ATTN:.. Diana Painter, DCD Associate Planner:;
RE: , Park Place Retail Center
Dear Ms. Painter;
Enclosed you'll find five (5) landscape development drawings. and two (2) landscape tree
replacement plans for your review. A description of each drawing is provided to "clarify any
questions: about design intent.:
Sheet L-1, Landscape Plan, is a comprehensive plan illustrating plant type, size and location. The
site's. existing parking lot trees were retained where feasible; unfortunately, the city's requirement
of re- paving and re-configuration of the parking lot has eliminated some trees. The store frontage
has been softened with the additional landscape area incorporating Alaska Weeping Cedar and
Birch trees with rhododendrons underlying the tree canopy. A more formal and bold: statement
has been created with the addition of ten (10) concrete (4'x4'x3 V2) planters: These planters are to
be installed with four (4) "Coral Beauty" cotoneaster and one (1) columnar flower cherry. All the
plant material sized, adjacent the building has been increased above industry standards to provide a
more immediate effect.
The site's southern boundary has been adjusted, to enhance security by thinning out the existing ..
cedar hedge. Pedestrian access has been added between the subject property and Levitz furniture:
Additional landscape buffering has also been provided between the restaurant at the site's
northeast corner and the subject property.
s. o 0
Main Street
Suite D,<',,
Edmonds,,
Washington
9 8 0 2 0
(206) 776-4932
(Fax) 774 -7803
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Page 2 - City of Tukwila, Diana Painter re Park Place Retail Center - 3 -14 -95
Sheet L -2, Landscape Details Sheet, has been provided for construction purposes and clarification .
for city review of proposed action. Besides standard planting details, pruning of both deciduous
and evergreen trees are provided. A wood headerboard detail and tree protection barricade detail
have been provided as well Note two other site specific details have been provided; existing
'concrete . planter detail and replacement tree planting detail.
a•
Sheet L -3, Irrigation Plan, and Sheet L -4, Irrigation Details, have been included for verification of
plant watering.
Sheet L -5, Enlarged Plans (Landscape), has been drafted to clarify both the store frontage
landscape and the wetland buffer planting. Both the buffer width and site - specific planting
considerations have been addressed in this enlarged plan. Comments and concerns of Gary
Schultz have been addressed in this plan.
The next two drawings, LTR -1 and LTR -2, are plans generated to comply with the Sensitive
Areas Ordinance (SAO, #1599). and the Interim Tree Ordinance ( #1715). Sheet LTR -1 deals with
the tree removal of existing trees during the year of 1994. Sheet LTR-2 involves itself with the
proposed tree removal required for the new retail center development.
Sheet LTR -1, Landscape Tree Replacement Plan -1994, is a response to the geotechnical work on .
the site. An approximate 15' wide bench adjacent the site's developed west area had been'cleared
to enable soil boring equipment to provide needed testing. This linear strip recorded existing
type, size, and location of removed trees. The city's planning staff had determined that the
geotechnical work involved an area too small to apply the canopy method. Therefore, the caliper
method for tree replacement was applied. Specifically, a graph has been supplied on the LTR -1
sheet showing type, size category, and quantity of existing trees and resultant tree count.
Sheet LTR -2, Landscape Tree Replacement Plan - 1995, has been developed to comply with the
proposed tree removal in the "Sensitive. Slope areas and has employed the tree canopy method as
its methodology. The area of tree removal has been calculated at 25,752 s.f The resultant tree
requirement is 82 trees (314 trees /tree canopy removed).
The "Tree Canopy" method has been used because the site meets the minimum canopy cover of at
least 20 %. (Actual calculations: 140,265 s.f. previous west slope area is 20.72% of the total site
area; 676,948 s.f.)
Both plans are to install two- to four -year old seedlings for forest enhancement planting in an
upland area near the site's overall southwest corner. Note this was as per Gary Schultz, Urban
Environmentalist's memorandum comments dated November 28, 1994.
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age .3 City of Tukwila; Diana Painter re Park Place Retail Center 3 -14-95
I hope that this letter clarifies the information communicated on the plans. If you should have any
additional questio ase on . _ 'tate to call:
Sincerely,
cc: Roy Bennion, ; Park :Place Partners
Howard Turner, Turner & Associates
::�
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SECTION 02750 - IRRIGATION SYSTEMS
PART ONE - GENERAL
1.01 DESCRIPTION
A. General Information: Bidding Requirements, Conditions of the Contract and
pertinent portions of sections in Division One of these specifications apply to
the work of this section as fully as though repeated herein.
B. Work Included:
1. Include all labor, material, equipment, transportation, and services to
install a complete irrigation system as shown on the drawings and herein
specified, including temporary irrigation to protect existing plantings to
remain /relocate.
2. Connection to stub provided for irrigation system.
3. Sleeving under paved areas.
4. Obtain and pay for all permits and fees for the work of this section.
5. Back flow protection D.C.V.A. minimum.
6. Protect all and any existing irrigation systems and site conditions noted
to remain. Perform all interconnections and repairs, as necessary.
C. Related Work Specified in Other Sections:
1. Section 02900 - Landscaping and Planting
2. Section 16000 - Site Electrical Work (electrical contractor to bring power
to irrigation controller and connect)
1.02 SUBMITTALS
A. Manufacturer's Data: Manufacturer's catalog cuts, description, specifications,
operating pressures, pressure losses, etc., for all products to be incorporated
into the work. Include manufacturer's installation specifications and details;
six copies.
B.
Record Drawings: Keep and submit at completion of the work, record
drawings, one reverse sepia, and four prints, as specified in Section 01340 of
the Contract Specifications. Specifically record locations of:
1. Connections to water supply lines
2. Connections to electrical power supply
3. Gate valves
4. Pressure line routings
5. Control valves
6. Control line wiring routings
7. Quick coupling valves
8. All other related equipment
• HAGGENS - CHURCH CREEK
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RECEIVED
CITY OF TUKWILA
MAR 1 5 1995
PERMIT CENTER
SECTION 02750 - IRRIGATION SYSTEMS - 1
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C. Operating and Maintenance Manual: Prepare and submit prior to start -up and
operating instruction period for owner, operating and maintenance manuals as
specified and as modified below:
1.03
1. The manuals shall include as a minimum the following information for all
items used on the system:
a. List of authorized distributors and service representatives for each
item of irrigation equipment, including names, addressees and
phone numbers.
b. Guarantee /warranty certificates for all equipment used and
contractor's written 1 -year warranty. See Guarantee Form, last
page of this section.
c. Instruction manuals for all equipment used.
d. Parts lists for each item with exploded views showing part
numbers.
e. Complete troubleshooting guide to common irrigation problems.
f. Winterizing and spring start -up procedures.
g. Chart of approximate times for programming controller zones for
watering in spring, summer and fall.
h. A pocket containing blueline prints of the approved sepia record
drawings. Prints shall be added at time of final review.
i. 8-1/2" x 11" copies of all irrigation construction details for the
irrigation installation.
j. The controller box keys.
. Temporary Irrigation Shop Drawing: Refer to 1.12 - Temporary irrigation.
E. Substitutions: Substitutions, if any, shall be requested per Section 01340.
No on -site substitutions will be permitted.
PRODUCT HANDLING
A. Protect work and materials under this section from damage during
construction and storage. Protect polyvinyl chloride (PVC) pipe and fittings
from direct sunlight. Beds on which pipe is stored must be full length of pipe.
Do not use any pipe or fitting that has been damaged, dented or rusted.
1.04 QUALITY CONTROL
A. General
1. Follow all product manufacturer's directions for installation procedures
not particularly shown or specified.
2. All codes and regulations governing the work of this section takes
precedence over the drawings and specifications.
3. See Section 01400 for specific information.
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SECTION 02750 - IRRIGATION SYSTEMS - 2
B. Drawings
1. Investigate the structural and finished conditions affecting work and plan
work accordingly. Drawings are diagrammatic and indicative of the work
to be installed. Install so as to avoid conflicts between irrigation
systems, existing and proposed plantings, and architectural features.
2. The irrigation contractor shall assume full responsibility for any revision.
3. Any item of labor, material or equipment not specified or shown in detail,
but incidental to or necessary for the complete installation and proper
operation of the system, shall be furnished by the contractor without
additional cost to the owner.
1.05 QUALITY ASSURANCE
A. Contractor shall be licensed in the state in which this work is being performed.
B. Contractor shall have at least two years prior experience in projects of equal or
larger scope.
C. Contractor shall employ on -site at all times a foreman who is thoroughly
experienced and competent in all phases of the work of this section.
1.06 CODES, RULES AND SAFETY ORDERS
A. All work and materials to be in full accordance with latest rules, regulations,
and safety orders of Division of Industrial Safety; the Uniform Plumbing Code
published by the Western Plumbing Officials' Association; and other applicable
laws or regulations. Nothing in these drawings or specifications is to be
construed to permit work not conforming to these codes. Should the
construction documents or instructions be at variance with these rules and
regulations, notify the landscape architect for instructions before proceeding
with the work affected.
B. When the specifications and /or drawings call for or describe materials,
workmanship or construction of a better quality, higher standard or larger size,
these specifications and /or drawings shall take precedence over the above
rules, regulations, or codes.
C. Furnish and maintain all warning signs, shoring, barricades, red lanterns, etc.,
as required by the safety orders of the Division of Industrial Safety, and local
ordinances. Take care to protect open trenches and pits.
1.07 PERMITS AND FEES
A. Obtain all permits and pay required fees to any governmental agency having
jurisdiction over the work. Arrange inspections, if required, by local agencies
and ordinances during the course of construction.
HAGGENS - CHURCH CREEK SECTION 02750 - IRRIGATION SYSTEMS - 3
1.08 APPROVAL
A. Whenever the terms "approve" or "approved" are used in the specifications,
they mean approval of the landscape architect in writing.
1.09 SITE REVIEWS AND TESTS
A. Submit verbal request for inspections to the landscape architect at least 48
hours prior to anticipated inspection. Do not request testing until satisfied that
work will pass test.
1.10 PROVISIONAL REVIEW (PUNCH UST)
A. Upon completion of all irrigation and other work (if any) required under this
contract, the contractor shall request a provisional review. No partial
approvals will be given.
1.11 FINAL REVIEW /ACCEPTANCE
A. The contractor shall request a final review upon satisfactory completion of all
punch list items and any other work required under this contract. Final review
and acceptance of the work shall establish the beginning of the warranty
period.
B. Follow Section 01700 - Contract Closeout.
1.12 WARRANTY
A. In addition to the manufacturer's guarantees or warranties, all work shall be
warranted for one year from the date of final acceptance against defects in
material, equipment, and workmanship by contractor. Warranty shall also
cover repair of damage to any part of the premises (including planting)
resulting from leaks, settlement or other defects in materials, equipment, and
workmanship to the satisfaction of the owner.
1.13 TEMPORARY IRRIGATION
A. Provide temporary above - ground irrigation system at beginning of project to
water plant materials which are shown on the landscape plans as temporarily
stored and relocated. Submit proposed system design for approval. Maintain
temporary system and water regularly throughout the project, and until plants
are planted in their final locations.
HAGGENS - CHURCH CREEK . SECTION 02750 - IRRIGATION SYSTEMS - 4
B. Provide and coordinate use of temporary irrigation water through use of hose
bibbs; quick couplers; reactivating of portions of existing system; or other
approved methods to water all existing plantings noted on the landscape
drawings to remain. Deep thorough watering to occur a minimum of once
weekly throughout the dry portions of the year to maintain existing plantings in
top condition. Maintain temporary hookups up to point of activation of new
system.
1.14 JOB CONDITIONS
A. Water Source: Provide new point of connection equipment as detailed or
described on drawings.
B. Electrical: Power is to be provided and connected to irrigation controller by
site general contractor. General contractor to also install conduit from building
location to outside controller as noted on drawings. Irrigation contractor to
provide and install control wires to controller. General contractor to provide
conduit for control wires from controller to the end of PVC irrigation sleeve
(see plans).
C. Sleeving: All sleeving required for the execution of the work is to be provided
under this section, including subgrade compaction.
PART TWO - PRODUCTS
2.01 MATERIALS
A. General
1. All materials to be incorporated in this system shall be new and without
flaws or defects and of quality and performance as specified, and
meeting the requirements of the system. AU pipe damaged or rejected
because of defects shall be removed from the site at the time of
rejection.
2. No substitutions of smaller pipe sizes will be permitted, but substitutions
of larger sizes of same type at no extra cost, with approval, are
acceptable.
2.02 PIPE AND FITTINGS
A. Polyvinyl Chloride Pipe (PVC) and Fittings
1. PVC Pipe and Fittings: PVC compound Type 1, Grade 1, or Type 1,
Grade 2, conforming to ASTM D -1784 specifications, approved and
certified by National Sanitation Foundation, all fittings Schedule 40,
unless otherwise noted. Pipe to be as follows:
HAGGENS - CHURCH CREEK SECTION 02750 - IRRIGATION SYSTEMS - 5
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a. Pressure Lines: Class 200.
b. Lateral Lines: Class 200.
c. Sleeves: Class 200; oversize two sizes larger than line to be
sleeved, or as designated on plan. Each length of PVC pipe is to be
marked with an identifying extrusion "run" number and
manufacturer's name or trade name, pipe size and schedule or
class.
2. PVC Solvent Weld Pipe: PVC 1120 and 1220 material, and shall have
200 psi minimum pressure rating unless otherwise indicated, with
SDR 21 walls which conform to ASTM D -2241. PVC pipe with walls
heavier than SDR 21 shall be installed when noted.
3. PVC Threaded Pipe: PVC 1120 or PVC 1220 material, Schedule 80,
conforming to ASTM D -1785.
4. Plastic Pipe Fittings: Conform to ASTM D -2466, Type 1, Grades 1 or 2.
Pipe may be belled on one end with the dimensions of the tapered bell
conforming to ASTM 0 -2672. Molded fittings manufactured of the same
material as the pipe, suitable for solvent weld, unless otherwise
specified. Slip fitting socket taper shall be so sized that a dry,
unsoftened pipe end can be inserted no more than halfway into the
socket. Plastic saddle and flange fittings not permitted.
5. Solvent Weld Compound: Two -step application, with primer and solvent
compounds on all fittings.
6. Galvanized Pipe: Standard wall Schedule 40, hot - dipped galvanized iron
or steel pipe, threaded or coupled, which conform at ASTM A -120.
7. Flexible Piping:
a. Flexible Nipples: Rainbird SP -100 or TORO 850 -05, fittings, same
brand as piping, Rainbird SB series or TORO 850 series.
2.03 VALVE BOXES
A. Automatic Control Valve: 11' x 17" black standard box with black locking
cover as manufactured by Ametek, Carson, or approved equal. Provide
extensions as required. Support all valve boxes in lawn using (2)
8" x 8" x 16" concrete blocks as detailed to avoid settlement.
B. Point of Connection Equipment: Ametek or Carson locking jumbo box or
approved equal. Provide sufficient boxes to enclose all equipment.
2.04 PROTECTIVE SLEEVE WITH LOCKING CAPS
A. Two -inch diameter Class 200 PVC, length as required. Caps, Rainbird
#63100. All drain valves to be enclosed in protective sleeves /locking caps.
HAGGENS CHURCH CREEK
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SECTION 02750 - IRRIGATION SYSTEMS - 6
2.05 MISCELLANEOUS KEYS
A. Provide two (2) of each of the following keys: Manual drain cross - handle key,
valve box cover lock key, protective sleeve caps lock key, controller cabinet
keys.
2.06 DRAIN VALVES
A. Manual Drain Valves: All non - rising stem, globe, or angel valve, 100 psi
rating. Wilkens No. 205 or approved equal. Provide all main line and low
points, with a minimum of one per zone; size - 1/2 inch.
B. Automatic Drain Valves: Weathermatic No. 910 automatic drain valve to be
installed as required to stop low head run -off, with a minimum of one per
zone.
CONTROLLER
A. Brand and type as specified. No substitutions will be accepted on this item.
MISCELLANEOUS ELECTRICAL EQUIPMENT
A. Control Wire: Insulated single- strand copper, minimum AWG #14 -600 V
UL- approved as Type UF. Copper conductor meets or exceeds ASTM B -3.
Red (hot), white (neutral), yellow (extra) and black colors must be available.
Sufficient quantities must be supplied to meet splice and extra -wire
requirements listed under control wire installation. Control wire size must
meet or exceed Rainbird and Toro irrigation control wire specifications
including length of run /size ratio.
B. Splice: Make water -tight electrical wire splices with either 3 -M, Scott's Lock
Seal tack 3576 -78 or Pen -Tite PVC socket and sealing plug or Rainbird PT -100
series.
C. Electrical Tape: Black plastic 3/4 -inch wide, minimum 0.007 -inch thick, all-
weather type.
D. Duct Tape: All- weather cloth tape.
2.09 DRAIN ROCK
A. Unfractured Rock: 100 percent passing 1-1/2-inch square sieve and 0 percent
passing 3/4 -inch square sieve.
2.10 MAINTENANCE EQUIPMENT AND SPARE HEADS
A. Provide two manufacturer's service wrenches for each head type. Provide
three of each head type as spares, and five of each nozzle used (i.e., 12' -
180 degrees, 12' - 360 degrees, etc.). Provide two (2) valve operating keys.
HAGGENS - CHURCH CREEK SECTION 02750 - IRRIGATION SYSTEMS - 7
2.11 MISCELLANEOUS
A. All other products, brand and type as specified on drawings.
PART THREE - EXECUTION
3.01 PREPARING
A. General
1. Verify water pressure at point of system connection.
2. Visit site to determine existing conditions, nature of materials to be
encountered and other factors that may affect the work.
3. Install sleeving under all asphalt, concrete, or other hard surface
pavement areas. Coordinate with contractor for placement prior to
paving operations.
4. Confine work to areas designated. Do not disturb natural vegetation
outside of project limit lines. Protect all trees and shrubs within project
limits not designated to be removed. Repair or replace vegetation
damaged as a result of contractor's operation to satisfaction of owner at
contractor's expense.
5. Be cognizant of all utility lines and underground obstructions. Be familiar
with all utility, irrigation, mechanical, and electrical plans, so that
digging /drilling operations do not damage lines. Replace or repair at
contractor's expense any buildings, equipment, underground utilities,
walks, stairs, and /or forms damaged as a result of contractor's
operations in a manner satisfactory to the owner before final payment is
made.
6. Protect work, adjacent property and the public and be responsible for any
damage or injury arising from execution of contract.
B. Inspection
1. Scaled dimensions are approximate. Check and verify all dimensions
prior to proceeding with work. Examine related work and project site
before starting work of this section. Report to the landscape architect, in
writing, conditions which will prevent the proper execution of this work.
Do not begin the work of this section without reporting unsuitable
conditions by the contractor. Any required removal, repair, or
replacement of work caused by unsuitable conditions shall be done by
contractor at no additional cost to owner.
2. Discrepancies: Upon initiation of work or at the earliest time discovered,
report to the landscape architect any deviations between the irrigation
drawings and the site. Failure to do so prior to the installing of
equipment resulting in replacing, and or relocating, or additional
equipment, shall be done at contractor's expense.
HAGGENS - CHURCH CREEK
SECTION 02750 - IRRIGATION SYSTEMS - 8
•
3. Available Pressure Verification: Prior to the start of any work, verify the
assumed static pressure at point of connection. Notify landscape
architect of pressure available for approval to proceed.
4. Plant Materials: Locate irrigation lines in planting areas to avoid proposed
plant material locations and any existing trees. Minor field adjustments
may be made by the landscape architect to shrubs to avoid equipment.
If conflict occurs with tree pit, relocate irrigation line at no additional
cost.
5. Carefully check all grades before starting work.
3.02 INSTALLATION
A. General
1. Water service connections shall conform to the requirements set forth by
supplying agency.
2. Layout irrigation system. Stake the irrigation system following the
design shown on the drawings before the construction begins.
Alterations and changes in the layout may be expected in order to
conform to the ground condition and to obtain full and adequate coverage
of water which is contractor's responsibility. It is understood that
corrective measures may become necessary, but no changes or
alterations in the system shall be made without the prior authorization of
the landscape architect.
Where connections to existing stub -outs are required, make necessary
adjustments in layout to connect should stubs not be located exactly
where shown. Adjust layout as necessary to install around existing
work. Where piping is shown to be under paved areas, but running
parallel and adjacent to planted area, intention is to install piping in
planted areas. Do not install directly over another line in same trench.
B. Trenching
1. Trenches shall be excavated for all pipe to provide a minimum depth of
cover below finish grade of 18" for live lines (mains) and 12" for laterals
and all others. Excavate no wider at any point than is necessary to lay
the pipe or install equipment. Excavate with vertical sides and provide
bracing and shoring as required.
2. Excavate to depth required in any material encountered with no extra
compensation. Materials unsuitable for bedding of pipe to be removed to
depth 4" below trench bottom, and replaced with suitable bedding
material as directed by landscape architect. Suitable bedding material
shall be: excavated trench material free from material which might
damage the pipe, including rocks, roots, sticks, debris, or other sharp
objects over 1" in diameter, or sand as required.
HAGGENS - CHURCH CREEK SECTION 02750 - IRRIGATION SYSTEMS - 9
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3. Exercise care when excavating trenches near existing trees. Where roots
are 2" and greater in diameter, except in the direct path of the pipe,
hand - excavate and tunnel. When large roots are exposed, wrap with
heavy burlap for protection and to prevent excessive drying. Trenches
dug by machine shall have sides hand trimmed, making a clean cut of the
roots. All roots 1/2" and greater in diameter that are cut and trimmed
shall be treated with an approved tree wound dressing. Trenches having
exposed tree roots shall be backfilled within 24 hours unless adequately
protected by moist burlap or canvas.
4. The top 4" of topsoil, when such exists, shall be kept separate from
subsoil and shall be replaced as the top layer when backfill is made.
5. Generally, piping under existing paving and /or walks is to be done by
jacking, boring or hydraulic driving but where cutting or breaking is
necessary, it shall be done and replaced by the contractor as part of the
contract cost. Permission to cut paving or sidewalks will be obtained
before commencing work. Repair cut paving with matching material,
placed and textured to match existing, as approved by landscape
architect. No hydraulic driving will be permitted under asphalt paving.
•C. Piping
1. Pipe Placement: Plastic pipe shall be installed in a manner so as to
provide for expansion and contraction as recommended by the
manufacturer.
D. Jointing
1. General
a. All threaded joints (PVC or galvanized) shall be sealed with Teflon
tape or ectroseal "Heavy Duty" #100 virgin Teflon thread sealing
paste only (no substitutes).
b. Care shall be taken to not overtighten fittings.
c. Keep interior of pipes clean and free from dirt, debris, excess
solvent, pipe cuttings or burrs, and ream to full diameter. When
pipe laying is not in progress, close ends of pipe.
2. PVC Pipe
a. Use two -step solvent weld process only, apply as per
manufacturer's recommendations.
b. No water shall be permitted in pipe until a period of at least 10
hours has elapsed for solvent weld- setting and curing. •
c. The joints shall be allowed to cure at least 24 hours before pressure .
is applied to the system.
d. Only factory- threaded Schedule 80 PVC pipe may be connected to a
threaded fitting without an adapter.
HAGGENS - CHURCH CREEK SECTION 02750 - IRRIGATION SYSTEMS - 10
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e. No male PVC adapters permitted. Use only female PVC adapters
with galvanized steel pipe nipples (3" min. length). Street ells
permitted only for triple swing joints, and only "Marlex" Schedule
40 high - sensity polyethylene (no substitutes).
E. Detail Installation
1. General: See details for general installation requirements. Provide
sufficient clearance for materials requiring maintenance. Install all
materials as per manufacturer's recommendations.
2. Sprinkler Heads
a. Rotary and Impact Heads and Quick Couplers
1) Install on PVC triple swing joint or double Marlex as detailed,
made with Schedule 80 PVC threaded fittings. Minimum riser
size shall be the iron pipe size of the sprinkler heads or quick
coupler.
2) Set all heads perpendicular to finish grade and 6" back from
curbs and walks unless otherwise noted.
b. Fixed Lawn and Shrub Spray Heads and Bubblers
1) Install on flexible nipple or as detailed.
2) Adjust head height as detailed and set 6" back from pavement
and curbs and perpendicular to finish grade, unless otherwise
noted.
3. Automatic Control ValvesNaive Boxes: Install in approximate locations
shown on plan, outside of paved areas and grouped together where
possible. Where valves occur adjacent to paved areas, install so that the
valve box will be no closer than 12" to paving and perpendicular or
parallel to it. Grouped valves shall be spaced evenly to provide a neat
appearance.
F. Sleeving
1. Install sleeves under all paved and surfaced areas, through walls, and as
required to facilitate a smooth construction sequence. Coordinate with
other trades as required.
2. Sleeves to be minimum twice the IPS diameter of insert pipe, and shall
extend a minimum of 12" beyond edge of walls, walks, and paving. Plug
ends of pipe to prevent soil from entering ends. Extend riser to 18"
above ground level and paint orange to designate sleeve end.
3. Sleeve at depths specified for pipe under Excavating and Trenching.
HAGGENS - CHURCH CREEK SECTION 02750 - IRRIGATION SYSTEMS - 11
G. Control Wiring Installation
1. Wiring between automatic controller and automatic control valves shall
comply with National Electrical Code, latest edition, and shall have a
common neutral, white; and separate control conductor for each valve.
2. Splices will be permitted only at junction boxes, valve boxes, or at
control equipment. A minimum of 2 ft. of excess conductor shall be left
at all splices, terminal, and control valves to facilitate inspection and
future splicing. Encapsulate all splices with approved sealants.
3. Control wires are to be taped together at 5 ft. intervals with electrical
tape, then this bundle is to be taped to the bottom of the main line at 10
ft. intervals with at least 1 full wrap of duct tape.
4. Run one unconnected continuous spare control wire (orange) through
each intermediate valve box between controller and furthest automatic
control valve.
5. At contractor's option, the control wire may be placed to the side of the
main rather than below as indicated above, provided that the wire is not
installed above the top of the main nor more than 8" from the side of the
main. The bundle of control wires shall be taped together at 5' intervals
as originally specified.
H. Flushing
1. Mains: Two full -open flushings; one prior to placement of valves, the
second after placement of valves and prior to testing.
2. Laterals: Only fully -open flushing prior to placement of sprinkler heads
and /or drain valves.
I. Backfill
1. At contractor's option, the pipe may be partially backfilled as it is laid,
but all joints and appurtenances shall remain exposed for flushing,
pressure testing, preliminary inspection, approval, and record drawing
locations. Complete backfill after completion of preliminary inspection of
system, cover all but valve boxes.
2. Backfill when PVC pipe is not in an expanded condition due to heat or
pressure. Cooling of the pipe can be accomplished by operating the
system a short time before backfill or by backfilling in the early part of
the morning.
3. In refilling the trenches, the fill around the 6" above the pipe and fittings
shall be suitable bedding material as defined below or sand as required
and tamped. The remainder of the backfill shall contain no lumps or
rocks larger than 3 ". The top 4" of backfill shall be replaced topsoil of
proposed topsoil where such exists (free of rocks over 1", subsoil or
trash) or selected fill dirt or sand if soil conditions are rocky. Trenches
shall be roughly water settled. No sluicing will be permitted. Trenches
shall be backfilled uniform flush with the surrounding grade, raked, and
rolled with a 260 Ib. roller.
HAGGENS - CHURCH CREEK SECTION 02750 - IRRIGATION SYSTEMS - 12
4. All roots, rocks, and surplus excavation shall be removed from the site
unless otherwise directed.
5. Trenches or tunnels under roads or paved areas shall be backfilled and
tamped with a mechanical tamper in successive 6" lifts.
J. Clean -up: Keep the premises free from rubbish and debris at all times and
arrange material so as not to interfere with other operations on the job site.
Remove all unused material, rubbish, and debris from the site prior to final
acceptance.
3.03 REVIEW AND TESTING
A. General: To be valid, the pressure tests must be performed under the
direction of the landscape architect. The contractor must give 48 hours notice
to the landscape architect when review is required. The location, review and
testing provisions for these specifications will be strictly adhered to. If, for
any reason, any part of the irrigation system is backfilled before location and
testing, it must be completely uncovered and exposed until approved for
backfilling by the landscape architect.
B. Preliminary Review /Pressure Testing
1. Prior to request for preliminary inspection or arrival of landscape
architect, accomplish the following:
a. All pipe and valves (including drain valves and quick couplers) and
all other equipment, except sprinkler heads, in place.
b. Cap all risers except first riser from valve on each lateral (one
uncapped riser per lateral), typical.
c. Purge all air from main lines.
2. Test of Mains and Valves: With all valves in place and closed, test at
150 psi minimum for 30 minutes without introduction of additional
service or pumping pressure. Testing shall be done with one pressure
gauge installed on the line where directed by landscape architect. Lines
which show loss of pressure exceeding 5 psi at the end of specified test
periods shall be rejected. The contractor shall correct installations
rejected, and retesting will be performed as specified herein.
3. Test of Laterals: Purge all air from laterals and cap all risers. Open
valves and ring system to line pressure. Lateral lines will be inspected
visually. Lines which evidence visible leakage shall be rejected.
4. Rejected Systems: Rejected systems or portions of systems requiring
repair and retesting in the manner specified.
C. Provisional Review (Punch list)
1. Review requested by contractor at time of completion of all work
required under contract (including work from other sections, if any).
HAGGENS - CHURCH CREEK SECTION 02750 - IRRIGATION SYSTEMS -13
2. Prior to request for review, accomplish the following:
a. Complete all work including balancing, adjusting the system
(pressure- reducing valves, flow- adjustment keys, nozzles, etc.) to
provide optimum coverage without fogging.
b. Complete the operations and maintenance manual ready for review
by landscape architects, and record zones on inside controller face.
c. Complete sepia record drawing for review by landscape architect.
d. Obtain all miscellaneous keys, spare parts and tools required under
this contract for review by landscape architect.
e. Clean out all sediment from valve boxes so that soil level is to
bottom of valve, and all wiring (including spare wire) is visible.
3. Coverage Check: Remove all valve box covers and operate each zone of
the system at direction of landscape architect.
4. Correct any items noted on the punch list prior to request for final
review.
D. Final Review/ Owner Orientation: At the time of and as part of the final
review, conduct a training and orientation session for the owner covering the
operation, adjustment and maintenance of the irrigation system. The record
drawings and operations and maintenance manual shall be reviewed and all
features explained. The contractor shall notify the owner in writing two
weeks prior to the training and orientation session. The date and time of the
session: shall be subject to approval of the owner.
3.04 TEMPORARY REPAIRS
A. General: The owner reserves the right to make temporary repairs as
necessary to keep the irrigation system equipment in operating condition. The
exercise of this right by the owner shall not relieve the contractor of his
responsibilities under the terms of the guarantee as herein specified.
3.05 WINTERIZING
A. General: The landscape contractor shall be responsible for winterizing
(blowing -out the system) in the fall of the year of completion, and spring start-
up of the irrigation system the first year following the installation. The
contractor shall provide facilities for drainage by the blowout method and shall
construct the system in such a manner that will insure positive winter
protection.
HAGGENS - CHURCH CREEK
END OF SECTION
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SECTION 02750 - IRRIGATION SYSTEMS - 14
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(To be Typed on Subcontractor's Letterhead)
GUARANTEE FORM
PROJECT: OWNER:
We, the undersigned, hereby warrant and /or guarantee that landscape /irrigation work
which we have furnished and /or installed for the above mentioned project has been
performed in accordance with the contract documents and that the work as installed will
fulfill all of the warranty of guarantee requirements included in these contract documents.
We hereby agree to replace at our sole cost and expense all materials adjudged defective
or improperly installed as well as guarantee the owner and contractor against liability,
losses or damage to any or all parts of the work arising from said installation during a
period of one .(1) year from the date of substantial completion. All guarantees will insure
to the benefit of the contractor, owner, their successors or assignees, including equipment
warranties. Ordinary wear and tear and unusual abuse or neglect is excepted. If project is
not maintained, guarantee is voided.
In the event of our failure to comply with the above mentioned conditions within a
reasonable time as determined by the owner, after being notified in writing, we, the
undersigned, do hereby authorize the owner to have said defects repairs, and /or
replacements made good and we will refund to the owner on demand all costs and charges
therefore, including all collection costs and reasonable attorney's fees.
DATE: COMPANY:
TITLE:
BY:
STATE LICENSE #:
HAGGENS - CHURCH CREEK
SECTION 02750 - IRRIGATION SYSTEMS - 15
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SECTION 02900 - LANDSCAPING AND PLANTING
PART ONE - GENERAL
1.01 INCLUSION
A. Bidding Requirements, Conditions of the Contract, and Division One are a part Q
of this section and contract for this work, and apply to this section as if fully rz
repeated here. 2
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1.02 SUMMARY V
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"A. Work Included: 9 F..:
1. Provide and install soil amendments, topsoil, sod, hydroseeding, ground w o;
2
cover, shrubs, trees, additives, miscellaneous services, and maintenance , ...
operations as needed for a complete and thriving installation. u. Q.
2. Provide protection for indicated existing plantings. Coordinate with = a
contractor for staking, barricades, and protection procedures. 1- w
3. Damage to or death of existing vegetation will require replacement of like _ 2 pi
species and size, at the expense of the landscape contractor. Damages z 0.:
due to unforeseen or unavoidable circumstances will be reviewed on a 'W ▪ w
case by case basis. v ▪ °i
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1.03 SUBMITTALS . u u i
A. Within 45 days after contractor's receipt of owner's Notice to Proceed, .u- pi
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submit:
1. Complete list of items to be provided under this section, including data on o'
source, size, and quality; 6 copies. z
2. Leave topsoil and mulch samples on site for review and approval.
1.04 GUARANTEE
A. Guarantee in writing all plants, trees and planting in a healthy, thriving
condition for one (1) year from date of final acceptance.
1. Replace all dead plants and plants not in a vigorous condition as soon as
notified by architect or owner.
2. Plants used for replacement must be of the same kind and size as
specified, planted and maintained as above.
1.05 QUALITY CONTROL
A. Install by skilled plantsman as per first class planting and accepted
horticultural practices.
''SECTION 02900 LANDSCAPING AND PLANTING - 1
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B. Quality and Size: Comply with current edition of USA Standards for Nursery
Stock as adopted by the American Association of Nurserymen.
C. Tag one plant of each bundle or lot with name and size of plants per standard
practice.
1.06 JOB CONDITIONS
A. Plant trees, shrubs, ground covers and lawns only between September 1 and
July 15 except during freezing weather, as determined by season, weather
conditions and accepted practice. Planting operations between July 16
through August 30, to be by architect's written approval.
B. The work of other sections includes the installation of debris, rock, and lump -
free soil, graded to landscape mounding height, Tess topsoil layer thickness.
C. The work of other sections includes the removal of AC paving and base rock
from planting areas.
PART TWO - PRODUCTS
2.01 PLANT MATERIALS
A. General: All plant materials furnished shall be healthy representatives, typical
of their species or variety and shall have a normal habit of growth. They shall
be full, well- branched, well - proportioned, and have a vigorous, well- developed
root system. All plants shall be hardy under climatic conditions similar to
those in the locality of the project.
B. Trees, Shrubs, Ground Cover: Quantities, species and varieties, sizes and
condition as shown on planting plan and plant list. Plants to be healthy,
vigorous, well foliated when in leaf, free of disease, injury, insects, decay,
harmful defects, all weeds and weed roots. No substitutions of size or species
shall be made without written approval from the architect.
C. Specimen Stock: When detailed on the plant schedule, specimen shall mean
exceptionally fully developed, bushy, and heavily branched plants that have
been grown individually in the nursery. They shall surpass the normal standard
for nursery stock in their density and maturity, and shall form a symmetrical,
tightly knit plant or picturesque characteristic if indicated.
D. Sod: Nursery - grown, a mixture of "Perennial Rye" and "Creeping Red
Fescue." Sod shall also be one year old and dense with grass having been cut
one (1) inch or less in mowing height prior to its being lifted from the field.
Sod shall be in a vigorous condition, dark green in color and free from disease
and harmful insects. Emerald Turf, JiB. Sod, or equal.
SECTION 02900 LANDSCAPING AND PLANTING - 2
Hydroseed: Hydro -mulch seed shall be fresh, clean, new crop seed composed
of the following varieties mixed in proportions indicated.
1. Fine Lawn Mix
a. Derby Rye - 35%
b. Pennfine Rye - 35%
c. Koket Red Fescue - 30%
Application rate shall be 220 # /acre. Mix shall also include Silva fiber at
2000# /acre, fertilizer 10 -20 -20 at 500# /acre, and sulfur coated Urea at
220# /acre.
•
2. Erosion Control Grass Mix
a. Perennial Rye - 40%
b. Creeping Red Fescue - 40%
c. Colonial Bent - 40%
d. White Dutch Clover - 10%
Application rate shall be 220 # /acre. Mix shall also include Silva fiber at
2000# /acre, fertilizer, 10- 20 -20, at 400 # /acre and J -Tac at 40# /acre.
2.02 SOILS AND MULCHES
A. Planting Soil: Planting soil shall be imported topsoil. Imported topsoil shall be
either Bassett Western's five -way. mix, Pacific Topsoil's five -way mix or
approved equal.
Mulch: Organic mulch free from deleterious materials suitable for top dressing
of trees, shrubs or plants and consisting of the following, unless specifically
described on the landscape plan(s):
1. Medium ground bark, dark brown in color.
2. Groco.
3. "Fertil - Mulch ".
4. Steerco.
2.03 . CHEMICALS
A. Fertilizers
1. Approved brands conforming to applicable State fertilizer laws. Uniform
in composition, dry, free - flowing, delivered to the site in original
unopened containers, each bearing the manufacturer's guaranteed
analysis.
2. Types
SECTION 02900 LANDSCAPING AND PLANTING - 3
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a. Trees, Shrubs, and Ground Cover: 10 -15 -10 inorganic slow release
or 22 -16 -8 50% fast /slow release (in tablet form).
b. For Sod Lawns: Scotts Starter 20 -26 -6 or equal.
c. For Seed Lawns: Scotts Starter with pre - emergence 16 -21 -5 or
equal.
B. Pre - Emergence Herbicide
1. A pre- emergence herbicide shall be applied to all planting areas except
lawn areas in accordance with directions stated by manufacturer of
material.
2. Apply 60 to 90 days after planting or as recommended by manufacturer.
2.04 MISCELLANEOUS
A. Tree Stakes: 2" x 2" Douglas fir stakes, 8 foot length as detailed; treat with
"Woodlife" or equal; stain dark brown.
B. Tiebacks: 14 gauge galvanized steel wire with 3/8 -inch thick clear, green, or
black vinyl tubing. "Chainlock" is an acceptable alternate.
C. Landscape boulders, lava rocks, and miscellaneous items as described on the
drawings.
PART THREE - EXECUTION
3.01 EXISTING CONDITIONS
A. Examine the areas and conditions under which the work of this section will be
performed. Report any conditions detrimental for this work to the general
contractor immediately. Start of this work implies acceptance of existing
conditions.
B. Locate all underground utilities and services and promptly notify architect of
any conflicts with the work of this section. Protect said structures and
utilities and repair or replace same at no cost to owner if damaged by this
work.
3.02 SPREADING TOPSOIL
A. General
1. In areas where existing vegetation is to remain, use imported topsoil in
pit plantings only. Do not spread over existing plantings.
B. Finish grading and supplying of clean subgrade soils is performed under other
sections.
SECTION 02900 LANDSCAPING AND PLANTING - 4
Perform fine grading required in planter areas, except in areas of existing
vegetation to remain.
D. Prior to placing topsoil, thoroughly rototill all new planting areas to a depth of
6 ". Rake soils free of lumps, rocks, and other deleterious materials.
E. Topsoil Placement
1. Place topsoil in layers not exceeding eight inches in uncompacted
thickness.
2. Compact each layer by thorough saturation with water to prevent future
settlement.
3. Depth of topsoil shall be a minimum of four inches after compaction,
except in areas where existing plantings are to remain.
F. Final Slopes
1. Grade all areas so that no obstruction to positive surface drainage
occurs.
2. Crown all planting areas. Maintain slopes of approximately 2% unless
indicated differently on drawings.
3.03 PLANTING
A. General
1. Plant nursery stock immediately upon delivery to the site. If this is not
feasible, heel -in all bare root and balled materials with damp soil and
protect from sun and wind.
2. Regularly water nursery stock in containers, and place them in a cool
area protected from sun and drying winds.
3. Locate all plants and plantings strictly in accordance with planting plan.
All ground cover spacing shall be triangular measurement.
4. Notify landscape architect of any deviations or conflicts prior to start of
work.
5. In the area along top west edge of retaining wall, ivy planting will occur
using pit planting method.
6. All planters with existing vegetation to remain shall have new plantings
installed by pit planting method. In areas where pit planting occurs, the
surrounding plantings are to remain undisturbed except as required to
place mulch.
Planting Trees
1. Dig hole as sized on the drawings.
2. Lay in bedding of .backfill mix, set tree, and water in.
3. Release top one -third of burlap wrapping; backfill and water in.
4. After water settles, fill again with topsoil, set fertilizer tablets (four per
tree), and water in, compacting to a grade of not more than 1 /2" higher
SECTION 02900 LANDSCAPING AND PLANTING - 5
than original ball., leaving soil dished around the tree for watering
purposes.
5. Excess soil excavated from tree pits shall be wasted on the site or
removed from the site. ,
C. Planting Shrubs and Ground Covers'
1. Dig hole as sized on the drawings.
2. Set plants on bed of backfill mixture; partially backfill, fertilize per
manufacturer's recommendations, and water in.
3. Set plants flush with the finish grade, working soil well around the roots
and heel tamping to compact backfill and provide slight depression as
watering saucer.
D. Pit Planting: Follow above specifications for planting trees, shrubs, and ground
cover, except excavate planting pit two (2) times the size of rootball or
container.
E. Mulching
1. Immediately after completion of all planting, mulch all areas to a depth of
two inches.
2. Finish level of planting areas after placement of mulch shall be no less
than two inches above curb level. Taper edges down to curb as detailed.
F. Sod Installation
1. After lawn areas have been brought to even finished grade (prior to sod)
apply 10 -15 -10 fertilizer at the rate of twenty (20) pounds per 1,000
square feet, together with dolomite limestone at the rate of fifty (50)
pounds per 1,000 square feet.
2. Rototill the above into the subgrade to a minimum depth of six (6) inches.
Where space permits, use a tractor - mounted three -point suspension
rototiller.
3. After mixing is completed at cross directions, drag to even grade, then
roll for firmness.
4. Sodding shall occur by placing sod from the sod side and kneeling on
plywood or some other platform.
5. Sodding shall be layered over "prepared and moistened" soil, lightly
raking the soil ahead of each sod strip and laying sod with all joints
tightly butted and staggered. Sod placed on slopes shall be laid at right
angles to the natural flow of water. For steep slopes, sod shall be
pegged to prevent slippage. As soon as possible after placement,
thoroughly water.
SECTION 02900 LANDSCAPING AND PLANTING - 6
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G. Hydroseeding: Apply seed and mulch at application rates as either stated
herein or as recommended by the manufacturer to prepared, topsoiled areas.
1. Hydro -mulch equipment shall be that of the industry. Mixing shall be
performed in a tank, with built -in continuous agitation and recirculation
system of sufficient capacity. to produce a homogeneous slurry of fiber,
stabilizing and water retaining elements, seed, fertilizer and water in the
designated unit proportions and a discharge system which will apply the
slurry to the areas to be treated at a continuous and uniform rate.
2. Loading and mixing shall be done with the agitation system operating at
part speed, water shall be added to the tank, good recirculation shall be
established. Materials shall be added in such a manner that they are
uniformly blended into the mixture in the following sequences:
a. When tank is one -third (1 /3) filled with water.
b. Add water retainer agents - at 1/2 acre requirements.
c. Add 3 - 0 pound bales of fiber.
d. Add seed - at 1/2 acre requirements.
e. Add NPK fertilizer - at 1 /2 acre requirements. Agitate mixture at full
speed when tank is half filled with water.
f. Add remainder of fiber requirements, 7 bales, before tanks is three -
quarters filled. Slurry distribution should begin immediately.
3. Inspection of the application shall be performed at the time of application
by a representative of the owner.' All materials shall be inspected prior to
loading into the system. All materials shall be packaged or in containers
showing net weight and contents therein. If materials are taken from
bulk supply, an accurate weighing or measuring device shall be used to
ensure that exact quantities of each material are present in each load.
3.04 STAKING
A. Guy and stake trees immediately after planting.
1. Deciduous Trees: Secure with two poles and wire trees per details.
2. Coniferous Trees: Secure with diagonal pole and tie per detail.
3.05 PRUNING
A. Shrubs: Prune out broken, dead, and diseased branches per standard
horticultural practice.
B. Trees
1. Prune, thin out and shape trees in accordance with standard horticultural
practice, to retain required height and spread.
2. Unless otherwise directed by landscape architect, do not cut tree leaders
and remove only injured or dead branches from flowering trees, if any.
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SECTION 02900 LANDSCAPING AND PLANTING - 7
3. In the designated area west of the retaining wall, prune the first row of
deciduous trees per detail on plan. This includes removing the top third
of the tree height in addition to thinning side branches. Maximum
removal -- one -half to ore -third of total branches.
3.06 INSPECTION
A. When landscape work is completed, including landscape maintenance,
landscape architect will, upon notification and on a regularly scheduled job site
visit, review the installation to determine acceptability.
1. Notify landscape architect at least 48 hours in advance of requested
review date.
Where landscape work does not comply with requirements, replace rejected
work and continue specified maintenance until re- reviewed and accepted by
architect or substantial completion, whichever is later. Remove rejected
plants and materials promptly from project site.
3.07 MAINTENANCE
A. Maintain landscape areas from time of installation until substantial completion.
1. Provide all necessary watering, weeding, trimming and maintenance
necessary to maintain plants in healthy and thriving conditions. Replace
dying or unhealthy plants.
2. Water plantings by thorough sprinkling. Provide as needed to keep the
ground moist and the plants healthy. Prevent wilting. Prevent soil
erosion, particularly on sloped areas. Repair any occurring erosion
gullies.
3. Water trees as required for vigorous thriving condition. Prune, cultivate,
fertilize, spray and perform other necessary operations. Spray only as
required and as acceptable to landscape architect. Plantings will not be
accepted until active growth is evident. Maintain tree supports, guys,
tree wraps and the like intact. Adjust as required to maintain firm
support throughout guarantee period.
4. For Sodded Areas
a. Maintain by watering, mowing, fertilizing and other necessary
operations to establish and maintain an even, thick and vigorous
stand of grass. Re -sod any areas which fail to show vigorous
growth.
b. Place and maintain barriers to keep foot and vehicle traffic off areas
until provisional acceptance, then remove from site.
c. Mow sodded area when the lawn reaches an average height of 3
inches. Maintain lawns by regular mowing to a uniform height of
1 -1 /2 inches (catching and disposing of cuttings), until provisional
acceptance at substantial completion.
SECTION 02900 LANDSCAPING AND PLANTING - 81
3.08 CLEAN =UP
A. Remove scrap and debris, and provide cleani operations emove on adaily i debris or litter
,
including sweeping and wash -down operations
scattered by this work.
B. Upon completion of this work, remove all excess materials and trash from the
site and leave planting areas in a clean and neat condition.
END OF SECTION
SECTION 02900 LANDSCAPING AND PLANTING - 9
•
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SECTION 02950 - WETLAND BUFFER PLANTINGS
PART ONE - GENERAL
1.01
INCLUSION
A. Landscape and planting specifications in Section 02900 apply to this section
as if fully repeated here except as specified otherwise in this section.
1.02 SUMMARY
A. Work Included
1. Contractor to verify wetland and buffer boundaries with project engineer.
These boundaries shall be reflagged by the project engineer prior to
construction activities. Construction personnel equipment and
debris /trash are prohibited within the wetland and buffer boundaries
except for activities which are necessary for implementation of the plan.
PART TWO - PRODUCTS
2.01 PLANT MATERIALS
A. Hydroseed
1. Wetland Buffer Mix
67% Tall or Meadow Fescue
10% Seaside Colonial Bentgrass
10% Meadow Foxtail
6% Alsike Clover
1% Marshfield Big Treefoil
6% Redtop
As provided by Briargreen, or equal.
2.02 SOILS AND MULCHES
A. Mulch: acceptable mulches for wetland buffer plantings consist of the
following:
Fertil -Mulch
Steerco
2.03 CHEMICALS
A. Do not use pre - emergent herbicide
SECTION 02950 WETLAND BUFFER PLANTINGS - 1
PART THREE - EXECUTION
3.01 PLANTING
A. General
1. Flag all plant locations for approval by landscape architect or biologist
prior to planting.
B. Pit Planting
1. Where pit planting is implemented, use a 50/50 mix of existing soil
removed from pit and imported soil for backfill material.
3.02 STAKING
A. No wetland buffer trees shall be staked.
3.03 PRUNING
A. Trees and Shrubs: Prune out only broken, dead and diseased branches per
standard horticultural practice. Do not prune trees to obtain better shape or
form.
3.04 MAINTENANCE
A. Maintain landscape areas only by providing necessary water. Do not weed,
trim or fertilize after time of planting.
END OF SECTION
SECTION 02950 WETLAND BUFFER PLANTINGS - 2
35
Drawing#
n
'TREE REPLACEMENT RATIOS
Diameter of Existing Trees Removed
4• -e• 8' -12' >12• -18• >1B• -24•,
# of Dees
Removed
Replacement
Tree Ratio
# of Trees
Required
31
11
4
8
31 12 44 8
TREE REMOVAL LEGEND
8• A ALDER
8• CH .CHERRY
4• C COTTONWOOD
REPLACEMENT TREE CALCULATIONS
, * For Geotech work (1994) tree removal, replacement was based
on city of Tukwila Interim Standards for Tree Clearing and
Planting, Ordinance 1715, Section VII, 7.8, C2, Table A. Tree
replacement ratios. 93 trees required; 1/3 big -leaf maple (Acer
macrophyllum) and 2/3 Douglas fir trees (Pseudotsuga
menzlesii) size to be I' -2' height saplings.
NOTES
1 � \
.Landscapes Architecture
T. Shawn Parsons, R.L.A.
600 Main Street, Suite D Edmonds, WA 98020
Telephone (206). 776.4932 FAX (206). 776.4932
1.2' HT. SAPLINGS
4' MAXIMUM HOLE BACKFLL WITH NATIVE SOIL.
DIAMETER
Ill llal- ."! :j I— II
SAPLING PLANTING DETAIL
NO SCALE
Os
NOTE DENSITY MAY INCREASE
TO INCORPORATE
/• • . . f ���� REQUIRED PLANT COUNT.
3f /. ... • • .N
V.••• •s• /
AO
■ 'YIN PLAN VIEW
SCALEI' 40' •0'
\ \\ ✓/
REPLACEMENT TREE PLANTING DETAIL
SCALE AS NOTED
,1.
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I � 11, L.� 12, I � I aI I I I nI�•� � L5I I � I R
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"LANDSCAPE TREE REPLACEMENT
PLAN - 1994
PECENFD
CRY OF TIAIYAIA
HAR 1 5 1995
PERMIT CENTER
Wool& / k fe
t jywwta•
PARK PLACE
17501 SOUTH CENTER PARKWAY
TURNER AND ASSOCIATES
18420 24th PLACE NE. ARCHITECTS
SEATTLE. WASFf4GTON 98155
TELE: (206) 365 -7431 FAX: (206) 365 -7504
_.LANDS. TREE REPLACEMENT
PLAN • 1994
PARK PLACE — TUKWILA, WA
JOB: PARK PLACE
FILE.
DRAWN BY: E.A.K
CHECKED BY: T.S.P
DATE: 3-14-95
SCALE: 1 =40' -0
REVISIONS
SHEET
LTR- 1
I •
DIAMETER
HOLE
1.7 HT. SAPLINGS
SACNFILL WITH NATIVE SOIL
SAPLING PLANTING DETAIL
NO SCALE; .. .
/ , NOTE DE NCO PAS ICREASE
/, 1 REQUIRED PLANT COUNT.
• `.�
�,. PLAN'VIEW
• _ ... .. . -SCALE P - 49' • 0.
REPLACEMENT TREE CALCULATIONS
For areas to be removed for construction (1995) replacement
Was based on city of Tukwila Interim Standards for Tree
Clearing and Planting; Ordinance 1715, Section VII, 7.9, D.2
:•Canopy method of tree replacement and based on BRH
tcraelecs u lation of tree canopy area to bremoved.4 25,752 s.f. 82
required •1/3 big leaf maple
(Acer macrophyllum) and
213Douglas fi;tree s (Pseudotsuga menziesii) size to be 1' -2'
kei hti s "a lin s
NOTE:;The Site hassa canopy coyer,equal t6;20.72% of the total Bite area.
( 140,285 s.f. previous,westslopearea; total site area; 676,948 s.f.)
;Trees ere;to:be7planted between,Ot:t 31,1995�,to March;1;1996.;
NOTES
TREE REPLACEMENT AREA':
—93 TREES ^1994
- 621REES '.71995 '
1176 TREES TOTAL',
%REPLACEMENT TREE PLANTING DETAIL
•
'UNDISTURBED NATURAL VEGETATION
'VEGEEATNE TREE MASS REMOVED 1994
SEE SHEET LRT.2
`�e���� v •
1 1 1 I1 f 11 1111111111 f 1
..IL.
PROPOSED .BUILDINGS
••^1..••••••
I
il:a3niierc`ap47ArOti tincfora.,;
'600FtainSVeEt;S1iiteD '•.`F.dmonds;WA:'98020
Telephone (206). 776.4932 FAX (206). 776.4932
\
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LANDSCAPE TREE REPLACEMENT'
PLAN - 1995
ECENED
CRY R CF T9I99L
MAR 1 5 1995
PEWIT CENTER
G95=colep
TURNER AND • ASSOCIATES
18420 241h PLACE NE. ARCHITECTS
SEATTLE, WASFNGTON 98155
TELE: (206) 365 -7431
FAX (206) 365 -7504
• LANDS. TREE REPLACEMENT
PLAN x1995 .r~1
PARK PLACE — TUKWILA, WA
FLE .PPLIGCD
DRAWN BY: J.T.S.
CI-ECKED BY:.TSP.
DATE: 3. 14.95'
SCALE:
r = 40'-0"
REVISIONS
SHEET
File:
L95 001(0
5mm Drawing#
•
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