HomeMy WebLinkAboutUtilities 2016-09-13 COMPLETE AGENDA PACKETCity of Tukwila
Utilities Committee
❖ Kathy Hougardy, Chair
❖ Kate Kruller
❖ Thomas McLeod
AGENDA
Distribution:
G. Labanara
K. Hougardy
p. Brodin
K. Kruller
R. Turpin
T. McLeod
Deputy City Clerk
J.Duffie
Clerk File Copy
D. Robertson
2 Extra
Mayor Ekberg
Consent Agenda
D. Cline
e-mail cover to: A. Le,
L. Humphrey
C. O'Flaherty, K. Hougardy,
B. Giberson
D. Almberg, B. Saxton,
R. Tischmak
S. Norris, L. Humphrey
TUESDAY, SEPTEMBER 13, 2016 — 5:30 PM
FOSTER CONFERENCE ROOM - 6300 Building
Item
Recommended Action
Page
1. PRESENTATION(S)
2. BUSINESS AGENDA
a) Crystal Springs Emergency Surface Water Repair
a) Forward to 9/19/16 Regular
Pg. 1
Bid Award
Consent Agenda
b) NPDES — Review Surface Water Management LID
b) Information Only
Pg. 5
Code Amendments, TMC Title 14
c) NPDES — Review Surface Water Low Impact
c) Committee Approval to forward
Pg. 23
Development Code Update, TMC Title 18 Zoning
to Planning Commission
d) Andover Park East Water & Sewer Replacement
d) Forward to 9/26/16 C.O.W. and
Pg. 37
PACE Engineers Supplemental Agreement No. 1
10/3/16 Regular
e) CBD Sanitary Sewer Rehabilitation
e) Forward to 9/19/16 Regular
Pg. 43
Emergency Sewer Repair at 1200 Andover Park E
Consent Agenda
Project Completion and Acceptance
f) CBD Sanitary Sewer Rehabilitation
f) Forward to 9/19/16 Regular
Pg. 47
Sewer Repair at 1227 Andover Park East
Consent Agenda
Project Completion and Acceptance
3. ANNOUNCEMENTS
4. MISCELLANEOUS
Future Agendas:
Next Scheduled Meeting: Tuesday, September 27, 2016
SThe City of Tukwila strives to accommodate individuals with disabilities.
Please contact the Public Works Department at 206 - 433 -0179 for assistance.
City of Tukwila
Allan Ekberg, Mayor
TO: Utilities Committee h.
FROM: Bob Giberson, Public Works Director
BY: Ryan Larson, Senior Program Manager
CC: Mayor Ekberg
DATE: September 9, 2016
SUBJECT: Crystal Springs Emergency Surface Water Repair
Project No. 91641206
BID AWARD
ISSUE
Award contract for the construction of the Crystal Springs Emergency Surface Water Repair.
BACKGROUND
Maintenance staff was notified of pavement settlement within Crystal Springs Park and 51s' Ave S during the week of July
18, 2016. Using video inspection, it was determined that the surface water pipe was filled with a large quantity of material
that indicated a possible failure of the pipe. Crews attempted to remove the blockage, but the removal of the material lead to
additional failure of the pavement and a sinkhole. Other utilities are located within the settlement area.
The Mayor declared an emergency on July 21, 2016 and Council approved Resolution 1887. Frank Coluccio Construction
stabilized the emergency repair by filling the sinkhole, securing the utilities, and installing a bypass pipe. KPG was hired to
design the permanent repairs for construction in 2016.
DISCUSSION
The Crystal Springs Emergency Surface Water Repair project was advertised for bids on August 30 and September 6, 2016.
Bids are to be opened on September 13, 2016. Bid results are not currently available for the publication of the Utilities
Committee Agenda, but due to the nature of this repair and the need to construct the permanent repair as soon as possible,
staff will bring the bid results to the Utilities meeting for discussion and possible action. A bid tab and award
recommendation, if applicable, will also be brought to the meeting. The engineer's estimate is $251,065.00.
BUDGET AND BID SUMMARY (All amounts include sales tax)
Funding is proposed from the 2016 Annual Small Drainage Program, as only one bid that was over budget was received and
rejected by Council by Resolution 1886.
Bid Results
Bid Amount $TBD
Contingency (15 %) TBD
Excess Design Funds
Crystal Springs (KPG - Design)
Crystal Springs (Coluccio Emerg)
Total TBD
Estimate 2016 Budget (SDP)
$251,065.00 $525,000.00
37,659.75
11,256.99
(59,979.80)
(150,000.00)
2 724.75 326 277.19
Council is being asked to award the construction contract for the Crystal Springs Emergency Surface Water Repair to (to be
determined) in the amount of $ (to be determined) and consider this item on the September 19, 2016 Regular Consent
Agenda.
Attachments: CIP Page 82, 2015 CIP
Bid Tabulation —To be brought to Utilities Committee Meeting
WAPW Eng \PROJECTS\A- DR Projects \Crystal Springs Emergency Surface Water Repair (91641206) \Info Memo Bid Award 09 -09 -16 gl sb.doc
CRY OFTUKVVLA CAPITAL PROJECT SUMMARY
2015 to 2020
PROJECT: Annual Snna|| Drainage Program Project No. Varies
DESCRIPTION: Select, design, and construct small drainage projects throughout the City.
Provide drainage JU8�|F|�A�|ON' '
' replacements, drain extensions, and pavement upgrades.
STATUS: Projects for this annual program are taken from Small Drainage Project List.
K8A|NT.|(NPACT: Reduces maintenance.
Ongoing project, only one year shown in first column. Construction expenses may occur over two calendar
COMMENT: years. Budget for 2014 includes $270k for Thorndyke Safe Routes to School (S 150th St). Grants from State
Municipal Stonnwmhor Capacity Grants.
FINANCIAL Through Estimated
(in $000's) 2013 2014 2015 2016 2017 2018 2019 0000 BEvomo TOTAL
EXPENSES
Design
60
80
80
80
80
80
80
80
620
Const. Mgmt.
70
80
80
80
80
80
80
80
630
Construction
279
270
325
525
525
525
525
525
525
4,024
FUND SOURCES
Awarded Grant
50
50
100
Proposed Grant
0
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
409
220
485
635
685
685
685
685
685
5,174
TOTAL SOURCES
409
270
485
685
685
685
685
685
685
5,274
201n-2020 Capital Improvement Program 82 2
CITY OF TUKWILA - DEPARTMENT OF PUBLIC WORKS
Crystal Springs Emergency Surface Water Repair
Engineer's Estimate
Project No. 91641206
KPG
8/29/2016
Total
51st Ave S Repair
No.
Section
No.
Item
Quantity
Unit
Unit
Cost
Total Cost
Qty
Total Cost
ROADWAY
1
1 -04
Unexpected Site Changes
1
FA
$15,000
$ 15,000
1
$ 15,000
2
1 -09
Mobilization
1
LS
$20,000
$ 20,000
1
$ 20,000
3
1 -10
Project Temporary Traffic Control
1
LS
$8,000
$ 8,000
1
$ 8,000
4
2 -01
Clearing and Grubbing
1
LS
$2,500
$ 2,500
1
$ 2,500
5
2 -02
Pavement Removal Incl. Haul
200
SY
$20
$ 4,000
200
$ 4,000
6
2 -03
Unsuitable Foundation Excavation Incl. Haul
20
CY
$45
$ 900
20
$ 900
7
2 -03
Gravel Borrow Incl. Haul
390
TN
$30
$ 11,700
390
$ 11,700
8
2 -05
Roadway Subgrade Preparation
1
LS
$5,000
$ 5,000
1
$ 5,000
9
2 -09
Shoring or Extra Excavation Class B
2,940
SF
$2
$ 5,880
2940
$ 5,880
10
4 -04
Crushed Surfacing Top Course
190
TN
$40
$ 7,600
190
$ 7,600
11
5 -04
HMA Cl. 1/2" PG 64 -22
215
TN
$190
$ 40,850
215
$ 40,850
12
8 -01
Temporary Water Pollution / Erosion Control
1
LS
$3,500
$ 3,500
1
$ 3,500
13
8 -04
Cement Conc. Traffic Curb and Gutter
20
LF
$55
$ 1,100
20
$ 1,100
14
8 -14
Cement Conc. Sidewalk
15
SY
$75
$ 1,125
15
$ 1,125
15
8 -20
Trail Luminaire Modifications
1
LS
$6,300
$ 6,300
1
$ 6,300
ROADSIDE DEVELOPMENT
16
8 -02
Topsoil Type A
20
CY
$50
$ 1,000
20
$ 1,000
17
8 -02
Hydroseed
180
SY
$5
$ 900
180
$ 900
18
8 -02
Property Restoration
1
FA
$5,000
$ 5,000
1
$ 5,000
STORM DRAINAGE
19
7 -04
Storm Sewer Pipe 18 In. Diam.
456
LF
$100
$ 45,600
456
$ 45,600
20
7 -04
Ductile Iron Storm Sewer Pipe 12 In. Diam.
65
LF
$100
$ 6,500
65
$ 6,500
21
7 -04
Remove /Abandon Existing Storm Sewer Pipe
560
LF
$15
$ 8,400
560
$ 8,400
22
7 -04
Remove /Abandon Existing Storm Sewer Structure
2
EA
$2,500
$ 5,000
2
$ 5,000
23
7 -05
Connection to Drainage Structure
7
EA
$1,000
$ 7,000
7
$ 7,000
24
7 -05
Catch Basin Type 2 48 In. Diam.
3
EA
$4,500
$ 13,500
3
$ 13,500
25
7 -06
Pothole Existing Utilities
5
EA
$1,250
$ 6,250
5
$ 6,250
26
7 -08
Trench Dam
4
EA
$1,500
$ 6,000
4
$ 6,000
27
7 -20
Temporary Water Bypass System
1
LS
$8,000
$ 8,000
1
$ 8,000
28
8 -30
Resolution of Utility Conflicts
1
FA
$5,000
$ 5,000
1
$ 5,000
ESTIMATED CONSTRUCTION COST
TOTAL ESTIMATED CONSTRUCTION COST*
$ 251,605
$ 251,605
$ 251,605
TO:
FROM
BY:
CC:
DATE:
City of Tukwila
Allan Ekberg, Mayor
Utilities Committee
Bob Giberson, Public Works Director-0
Greg Villanueva, NPDES Coordinator
Mayor Ekberg
September 9, 2016
SUBJECT: National Pollutant Discharge Elimination System (NPDES)
Project N0.99341210
Surface Water Management LID Code Amendments — TMC Title 14
ISSUE
Review new Surface Water Management Ordinance per National Pollutant Discharge Elimination System
(NPDES) permit requirements.
BACKGROUND
The City operates the surface water system under a general NPDES permit issued by the Department of
Ecology (DOE). The NPDES permit allows the City to discharge surface water to Waters of the State provided
we meet the NPDES permit requirements. The City's current NPDES permit requires that the City adopt either
the 2012 DOE Surface Water Design Manual or an equivalent surface water manual, such as the 2016 King
County Surface Water Design Manual (KCSWDM), by December 31, 2016.
ANALYSIS
The intent of the required storm water manual update is to make Low Impact Development (LID) techniques the
preferred and commonly-used approach to site development and or re-development. LID refers to systems and
practices that use or mimic natural processes that result in the infiltration, evapotranspiration, or storage on site
using soil or vegetation.
Staff reviewed the 2016 KCSWDM and determined that it is the City's best option to meet the NPDES permit
requirements. In order to be considered equivalent to the DOE manual, the City must also adopt the 2016 King
County Stormwater Pollution Prevention Manual (KCSPPM) and ensure that other development codes are
equivalent to King County codes referenced in the KCSWDM. Both manuals are adopted through a City
Ordinance process. The proposed substantive changes to the Surface Water Management Ordinance are:
• Adopt the 2016 KCSWDM in place of the 2009 KCSWDM (design manual)
• Adopt the 2016 KCSPPM in place of the 2009 KCSPPM (prevention manual)
• Add a section on trash and waste receptacle requirements
• Add catch basin labeling
The proposed code revisions will first be sent to the Dept. of Commerce for review prior to Ordinance adoption.
FINANCIAL IMPACT
No financial impact.
RECOMMENDATION
For information only.
Attachments: Draft Code Revisions in StFikethFGugh and Underline Form
LID Milestones and Schedule
WAPW Eng\PROJECTS\A- DR Projects\NPDES Program (99341210)\2015 2017 Capacity Grant\Otak LID Gap Analysis\Into Memo 2016 UC KC SWDM RDL.doc
14.30.010 Authority.
A. The Public Works Director shall administer TMC Chapter 14.30. The Director's
authority includes the establishment and publication of regulations and procedures to
supplement and implement this Chapter, approval of permits and exceptions, and
enforcement and implementation of measures necessary to carry out the intent of TMC
Chapter 14.30. Such regulations and procedures shall be incorporated within Chapter 5
of the Public Works Infrastructure and [)coigo and Construction Standards, as
amended, revised or re-adopted from time to time and hereinafter known and referred
tuay the Public Works Surface Water Regulations and Procedures.
B. The Public Works Director may initiate all required actions to prevent orstop
acts or intended acts ofau applicant o, other person that constitute a hazard tn life or
safety; endangered property; or adversely affect the safety, use or stability of public
way, surface water, a conveyance system ora sensitive area orbuffer.
C. If the Director determines that a person engaged in an activity that could or does
negatively affect surface water has failed to comply with City code nr with approved
surface water plans and/or other permit conditions, the Director may implement any or
all of the following enforcement actions:
l. Suspend or revoke without written notice any surface water permit issued by
the City, when the Director determines an immediate danger to life, safety or property
exists ina downstream area or adjacent property.
2. Serve a written notice o{ violation upon that person by registered orcertified
mail or personal service. The notice shall set forth the measures necessary to achieve
compliance, specify the time to commence and complete corrections and indicate the
consequences for failure to correct the violation.
3. Suspend or revoke any surface water permit issued by the City after written
notice ia given to the applicant for any ofthe following reasons:
GV:ksn Page I of 15
CHAPTER 14.30
SURFACE WATER MANAGEMENT
Sections:
14.30.010
Authority
14.30.020
Purpose
1430.030
Definitions
14.30.040
Applicability
1430.050
Compliance
14.30.060
Standards
I4.30.070
Permits
14.30.080
Storunvauer Drainage System Maintenance and
Inspection Requirements
14.30.090
Special Drainage Fee
14.30J00
Inlet Marking
1430.1I0
Financial Guarantees
14.30120
Insurance
14.30130
Exceptions
I430J40
Liability
14.30.150
Penalties
14.30.160
Abatement
14.30J70
Injunctive Relief
14.30.I80
Appeals
14.30.010 Authority.
A. The Public Works Director shall administer TMC Chapter 14.30. The Director's
authority includes the establishment and publication of regulations and procedures to
supplement and implement this Chapter, approval of permits and exceptions, and
enforcement and implementation of measures necessary to carry out the intent of TMC
Chapter 14.30. Such regulations and procedures shall be incorporated within Chapter 5
of the Public Works Infrastructure and [)coigo and Construction Standards, as
amended, revised or re-adopted from time to time and hereinafter known and referred
tuay the Public Works Surface Water Regulations and Procedures.
B. The Public Works Director may initiate all required actions to prevent orstop
acts or intended acts ofau applicant o, other person that constitute a hazard tn life or
safety; endangered property; or adversely affect the safety, use or stability of public
way, surface water, a conveyance system ora sensitive area orbuffer.
C. If the Director determines that a person engaged in an activity that could or does
negatively affect surface water has failed to comply with City code nr with approved
surface water plans and/or other permit conditions, the Director may implement any or
all of the following enforcement actions:
l. Suspend or revoke without written notice any surface water permit issued by
the City, when the Director determines an immediate danger to life, safety or property
exists ina downstream area or adjacent property.
2. Serve a written notice o{ violation upon that person by registered orcertified
mail or personal service. The notice shall set forth the measures necessary to achieve
compliance, specify the time to commence and complete corrections and indicate the
consequences for failure to correct the violation.
3. Suspend or revoke any surface water permit issued by the City after written
notice ia given to the applicant for any ofthe following reasons:
GV:ksn Page I of 15
a Anyviolation(s) of the conditions ofthe surface water permit;
k Changes bz site runoff characteristics upon which u permit orexception
was grunted;
c. Construction not bz accordance with the approved plans; or
d. Non-compliance with correction ootice(s) or "stop work" uzder(s)isaoed
for the construction of temporary or permanent stormwater management facilities.
4. Post "stop work" order at the site directing that all activities that could
affect surface p/etcr or a conveyance system cease immediately. The "stop work" order
may include any discretionary conditions and standards adopted in TMC 14.30.070 that
must 6e fulfilled before any work may continue.
14.30.028 Purpose. The provisions ofTMC Chapter 14.3U shall 6c liberally construed
m accomplish the following purposes:
I. Promote sound development policies and procedures that protect and
preserve the City's water courses, groundwater and surface water infrastructure;
2. Protect modare water conveyance systems and receiving n,etco from
poDnboo' mechanical damage, excessive 8ovva and o8zcz conditions that increase
erosion and/or turbidity, siltation and other pollution, or that will reduce groundwater
recharge or endanger oguadr and ben8dr life vrdfin ao6xc* waters and receiving
waters within the State;
3. Meet the requirements o{ State and federal law;
4. Fulfill the City's neoyooaibdibeo as trustee of the environment for future
generations;
5. Promote the health, safety and welfare nf the public;
6. Protect private and public property from drainage-related damage;
7. Promote site planning and construction practices that are consistent with
natural topographical, vegetative and hydrological conditions; and
8. Preserve and enhance the suitability of water bodies for recreation and
wildlife habitat.
I4.30.030 Definitions. Unless specifically defined below, words or phrases used io
TMC Chapter 1430 shall beinterpreted using the meaning they have io common usage
and to give TMC Chapter 14.30 its most reasonable application; provided that words or
pbzooea not defined herein that are defined in the City of Tukwila Surface Water Design
Manual or Smrnzwaocr Pollution Prevention Manual, shall have the meaning given
therein.
1. "Applicant" means any person, governmental agency or other entity that
executes the necessary forms to procure official approval ofo project ozo permit to
carry out construction ofo project Applicant also means any person, governmental
agency or other entity that is performing or plans to perform permitted work within the
City.
2. "Approval" means proposed work oz completed work conforming toTMC
Chapter l4.3Ooo approved 6y the Director.
3. "Best Management Practice" ouunm those practices which provide the best
available and reasonable physical, structural, managerial or behavioral activity to
reduce or eliminate pollutant loads and/or concentrations leaving asite.
vv.m" Page of 15
4. "City" means the City of Tukwila or the City Council of Tukwila.
5. "Comprehensive Surface Water Management Plan" means a plan adopted by
the City Council to guide the physical growth and improvement of the City and urban
growth management area, including any future amendments and revisions.
6. "Conveyance system" means natural and man-made drainage features that
collect, convey, channel, hold, inhibit, retain, detain, infiltrate, divert, treat or filter
surface water. Natural drainage features include swales, streams, rivers, lakes and
wetlands. Man -made features include gutters, ditches, pipes and detention/ retention
facilities.
7. "Critical drainage area" means an area, as determined by the City, needing
additional controls to address flooding, drainage, and /or erosion conditions that pose
an imminent likelihood of harm to the welfare and safety of the surrounding
community.
8. "Development" means any man-made change of improved or unimproved
real estate; the construction, reconstruction, conversion, structural alteration, relocation
or enlargement of any structure; any mining, excavation, landfill, clearing or land
disturbance; or any use or extension of the use of land.
9. "Director" means the Director of Public Works or his or her designee.
10. "Drainage review" means an evaluation by the City to determine compliance
with the City's standards and adopted Surface Water Management Manual.
11. "Erosion" means detachment and transport of soil or rock fragments by
water, wind, ice, etc.
12. "Illicit discharge" means all non- surface water discharges to surface water
conveyance systems that cause or contribute to a violation of State water quality,
sediment quality or ground water quality standards. These discharges include sanitary
sewer connections, industrial process water, interior floor drains, car washing and grey
water systems.
13. "Low impact development _* Al_)
st
�1-- tc�- �it� >- . •' .; �;....��siF l�rr .° ,: �k�... -a� oaf- a°al-- ��ttr�;
i�t --- .,..c, ^a�#�• s ems-- - >n:,,..„ ,.y...,,..,.�.•
ieFft means a
:stormwater and land use ;nTrT�Tas�eFnent strater_ that strives to mimic 12rc disturbance
h drola is racc,sses of infiltratian filtration story >e eva aration and trans iratian b
emoliasizing conservation use of on -site natural features site lamlin and distributed
stormwater manav,,emeiit rvactices that are irate rated into a ra'ect deli n.
14. "Plans" means the plans, profiles, cross sections, elevations, details and
supplementary specifications, showing the location, character, dimensions and details
of the work to be performed. These plans are approved by the Public Works Director
and are usually signed by a registered professional engineer licensed in the State of
Washington.
15. "Pollutant" means anything which causes or contributes to pollution.
Pollutants may include, but are not limited to: paints, varnishes and solvents; oil and
other automotive fluids; non - hazardous liquid, solid waste and yard waste; refuse,
rubbish, garbage, litter or other discarded or abandoned objects, ordnance and
accumulations, so that same may cause or contribute to pollution; floatables; pesticides,
herbicides and fertilizers; hazardous substances and wastes; sewage, fecal coliform and
pathogens; dissolved and particulate metals; animal waste; waste and residue that
W;TW E'I PR(!ffi TS \A- 1)It F'rotcc[siNi'C)L:S o, ,r, nF,J;,�;1; 4„x,21 „Ol5 20117 :'a racily Cir na A \()tak,L117 (;an Arr 1 si- \20Ffi K.C'SWI)M
��in nc \:A[7raf12016,K„ ,}i!iLM (:odifie, RTT,,2,F, �'�� ,rc _:.:.�....__' .._._ ....... . .... _.�.._ ...... .... ...._.
cv:ksn Page 3 of 15
results from constructing a building or structure; and noxious or offensive matter of any
kind.
16. "Pollution" means contamination or other alteration of the physical, chemical,
or biological properties of waters of the State that will or is likely to create a nuisance or
render waters harmful, detrimental or injurious 1) to public health, safety or welfare, or
2) to domestic, commercial, industrial, agricultural, recreational or other legitimate
beneficial uses, or 3) to livestock, wild animals, birds, fish or other aquatic life.
Contamination includes discharge of any liquid, gas or solid radioactive or other
substance. Alteration includes temperature, taste, color, turbidity or odor.
17. "Project" means activity encompassing all phases of the work to be
performed and is synonymous to the term "improvement" or "work."
18. "Runoff" means water originating from rainfall and other precipitation that is
found in drainage facilities, rivers, streams, springs, seeps, ponds, lakes and wetlands,
as well as shallow groundwater and that portion of precipitation that becomes surface
flow and interflow.
19. "Sediment" means fragmented material originating from weathering and
erosion of rocks or unconsolidated deposits, which is transported by, suspended in or
deposited by water.
20. "Sedimentation" means the deposition or formation of sediment.
21. "Single - family residence" means a project that constructs or modifies one
single family dwelling unit and /or makes related on -site improvements, such as a
driveway, outbuildings or play courts.
22. "Surface water plan" means a set of drawings and documents submitted as
prerequisite to obtaining a development permit.
23. "Stormwater" means surface water.
24. "Stormwater drainage system" means conveyance system.
25. "Surface flow" means flow that travels overland in a dispersed manner (sheet
flow) or in natural channels or streams or constructed conveyance system.
26. "Surface Water" means that portion of precipitation that does not naturally
percolate into the ground or evaporate, but flows via overland flow, interflow channels
or pipes into a natural drainage system, a surface water conveyance system or into a
constructed surface water facility.
27. "TMC" means the Tukwila Municipal Code.
28. "Typical" means the guidelines that shall be followed unless the Director
approves an exception.
29. "Water body" means a creek, stream, pond, wetland, lake or river.
30. "Watershed" means a geographic region within which water drains into a
particular river, stream or water body as identified and numbered by the State of
Washington Water Resource Inventory Areas (WRIAs) as defined in the Washington
Administrative Code.
14.30.040 Applicability. TMC Chapter 14.30 applies to all development activities
occurring within the City limits that could affect surface water.
14.30.050 Compliance.
A. TMC Chapter 14.30 contains minimum requirements. The requirements do not
replace, repeal, abrogate, supersede or affect any other more stringent requirements,
W:J'W Sri' (Af-L7,.,fS =.fie ;;,, �.�3.. " o kgs�NP[)F,S Prc, oLn 9_j 9:14121(. 1i�2U5 20Ella,- ity �ranNAL LII7 G:eo An I.s3.y„sSir2.0�6„, .;,tiW�7.N�
Or iq,i0lr.. edRTTr,
Eft
cv:ksn 201 r . ,,.,,_ _ Page 4 of 15
rules, regulations, covenants, standards or restrictions. Where TMC Chapter 14.30
imposes requirements that provide more protection to human health or the
environment, the requirements of TMC Chapter 14.30 shall prevail.
B. Approvals and permits granted under TMC Chapter 14.30 do not imply waiver
of other laws and regulations, nor do they indicate compliance with other laws and
regulations.
C. Compliance with the minimum standards and requirements set forth in TMC
Chapter 14.30 and related regulations, standards and manuals adopted by the City does
not necessarily mitigate all impacts to human health and the environment. In such
cases, the applicant must implement additional mitigation to protect human health and
the environment.
D. City departments shall comply with all the requirements of TMC Chapter 14.30,
with the exception of obtaining permit and approvals from the City for works
performed in the public rights -of -way, or for operation and maintenance activities by
the Department of Parks and Recreation.
E. Unless otherwise required by law, in the event of a conflict or inconsistency
between a standard or requirement of this chapter and a standard or requirement of the
Public Works Surface Water Regulations and Procedures, the SWDM, the DOE SWDM
or the SPPM, this chapter shall control to the extent of the conflict or inconsistency;
provided that, if a requirement or standard of the Public Works Surface Water
Regulations and Procedures, SWDM, DOE SWDM or SPPM, is more restrictive, i.e.,
provides more protection to human health or the environment, then the more restrictive
requirement or standard shall control. For example, if a particular core requirement
exemption allowed under the SWDM is not allowed pursuant to the Public Works
Surface Water Regulations and Procedures, the more restrictive standard of the Public
Works Surface Water Regulations and Procedures will apply.
14.30.060 Standards. All development activities within the City shall be undertaken
in accordance with the following minimum standards, except that depending on a
project's possible impact to public and environmental health and safety, the Director
may require stricter standards:
1. The City's National Pollutant Discharge Elimination System (NPDES) permit.
2. The 2OW20 1.6 King County Surface Water Design Manual (hereafter known
and referred to as "KCSWDM "), attached hereto as "Exhibit A" (or in the alternative) as
filed in the City Clerk's Office, is hereby adopted by reference as the City of Tukwila
Surface Water Design Manual and, together with the amendments thereto as set forth in
this section, shall be known and referred to as the Surface Water Design Manual or the
SWDM. The Director will review subsequent amendments to the KCSWDM and will
make recommendations to the City Council for adoption as needed and as applicable,
or will adopt and implement necessary administrative regulations and /or procedures
pursuant to the Director's authority under TMC Section 14.30.010(A).
3. The Department of Ecology 2005- -2012 Stormwater Management Manual for
Western Washington, hereafter known and referred to as the "DOE SWDM," may be
used for project design for multi- jurisdictional development projects wherein a
substantial and material portion of the development project will take place outside of
the jurisdictional boundaries of the City and will be required by a permitting authority
to comply with the standards set forth in the DOE SWDM; provided that the Public
Works Director approves of the DOE SWDM based upon a finding that application of
differing standards set forth in the SWDM and the DOE SWDM will create a hardship
for the applicant, and that approval of use of the DOE SWDM will not result in
requirements that are less restrictive than the SWDM or otherwise inconsistent with the
purpose of this chapter.
cv ksn 4 _ _ Page 5 of 15
1117
4. The 2449-2016 King County Stormwater Pollution Prevention Manual
hereafter known and referred to as "KCSPPM," attached hereto as Exhibit B (or in
alternative) as filed in the City Clerk's Office, is hereby adopted by reference as the City
of Tukwila Stormwater Pollution Prevention Manual and, together with the
amendments thereto as set forth in this section, shall be known and referred to as the
Stormwater Pollution Prevention Manual or the "SPPM." The Director will review
subsequent amendments to the KCSPPM and will make recommendations to the City
Council for adoption as needed and as applicable, or will adopt and implement
necessary administrative regulations and/or procedures pursuant to the Director's
authority under TMC Section 14.30.010(A).
5. The Public Works Surface Water Regulations and Procedures.
6. Development design and construction shall meet all of the applicable
standards and codes, recommendations in specific reports, such as the geo-technical
report and the Technical Information Report, and design criteria contained in the
Comprehensive Surface Water Management Plan or Drainage Basin Plans.
7. Unless the context indicates otherwise, the following terms and phrases, as
used in the SWDM or the SPPM, shall have the meaning or reference given.
Table 14.1 Tukwila Terminology Equivalents to King County Terminology
King County Term
City of Tukwila Term
Agricultural Project
Term does not apply.
Critical Drainage
Critical Drainage Area means an area as determined by
Area
the City needing additional controls to address flooding,
(KCC)
drainage and/or erosion condition that poses an
imminent likelihood of harm to the welfare and safety of
the surrounding community.
DDES'
City of Tukwila Department of Community
Development.
DNRPI
City of Tukwila Department of Community
Development.
Director
City of Tukwila Public Works Director.
King County
City of Tukwila.
King County Road
City of Tukwila Infrastructure Design and Construction
Standards
Standards and the requirements of the City of Tukwila
44aw,pe rte' oft-�Public Works Department a+td ` +faee
W-&�-U444N- W11—VpheaN&--
Water and Land
City of Tukwila Public Works.
Resource Division
Zoning
These zoning classifications are intended for areas
Classifications:
outside the Urban Growth Boundary; therefore the City
Agriculture (A);
of Tukwila contains no equivalent zoning. Refer to City
Forest (F); Rural (Z)
of Tukwila zoning maps and designations.
'Other terms used in the KCSWDM to reference other King County staff or
departments shall also refer to the City of Tukwila Department of Community
Development.
8. All references in the SWDM or the SPPM to the following King County codes,
or any section thereof, shall be replaced by reference as indicated in Table 14.2 to the
applicable code and comparable section thereof.
Table 14.2 Tukwila Municipal Code Equivalent to King County Code'
King
Tukwila
County Code
C
Description
M C iip
Description
(KCC)
GV:k,sn a Page 6 of 15
1§1
KCC 2.98
Critical Drainage Areas
TMC 14.30
WATER AND SEWER -
Coal Mine Hazard Areas
Maps delineating landslide areas, steep slopes and
Stormwater Management
KCC 16.82
BUILDING AND
TMC 16.54
BUILDING AND
Development service desk.
CONSTRUCTION
Maps delineating landslide areas, steep slopes and
CONSTRUCTION -
coal mine hazard areas within Tukwila are
STANDARDS -
Grading
Developm nt service desk.
Clearing and Grading
Not applicable.
Applications Map
KCC 21A.14
Development Standards
TMC 14.30
WATER AND SEWER -
Design Requirements
Stormwater Management
KCC 21A.24
Critical Areas
TMC 18.45
ZONING -
Environmentally
Sensitive Areas
KCC 21A.06
Technical Terms and
TMC 18.08
ZONING - Districts
I Land Use Definitions
Established - Map
KCC 20.14
Basin Plans
TMC 14.30
WATER AND SEWER -
Stormwater Management
KCC 25
Shoreline Management
TMC 18.44
ZONING - Shoreline
Overlay District
KCC9
Surface Water
TMC 14.30
WA'ITR AND SEWER -
Management
Stormwater Management
KCC 9.02
General Provisions
TMC 18.45
ZONING -
KCC 9.04
Surface Water Runoff
Environmentally
Policy
Sensitive Areas
KCC 9.08
Surface Water
Management Program
KCC 9.12
Water Quality
KCC 9.14
Groundwater
I
Protection
'This table identifies the main City municipal code chapters that contain
information/ requirements for the City where the SWDM references the King
County code. There may be other instances where other City code chapters
also a .
9. All references in the SWDM and SPPM to the following maps shall be
replaced by reference as indicated in Table 14.3.
Table 14.3 Tukwila Maps Equivalent to King County Maps or Designation
King County Map or
City of Tukwila Map or Designation
Designation
Coal Mine Hazard Areas
Maps delineating landslide areas, steep slopes and
Map
coal mine hazard areas within Tukwila are
Maps delineating stream and wetland types and
available at the Department of Community
Development service desk.
Landslide Hazard Area
Maps delineating landslide areas, steep slopes and
and Landslide Drainage
coal mine hazard areas within Tukwila are
Areas Map
available at the Department of Community
Developm nt service desk.
Water Quality
Not applicable.
Applications Map
I I
Aquatic areas (as defined
Maps delineating stream and wetland types and
in KCC 21A.06)
their associated buffers within Tukwila are
available at the Department of Community
Develop ment service desk.
Wetlands as defined in
Maps delineating stream and wetland types and
)KTW-LnsT—R(LT UK —rs \&J—)R -S_h(jgrqn )93 01, _20 U-Ci- c1! - rw - (114 L 11)GW.A a 4bs- M KCSW2
-U
GV:ksn Page 7 of 15
IN
KCC 21A.06)
their associated buffers within Tukwila are
available at the Department of Community
Development service desk.
Seismic Hazard Areas
Defined and regulated through the Washington
State Building Code.
Flood 1 lazard Area (as
Flood Plain Management will 17e > °e ulated
defined in KCC 21A.06)
through TMC 16.52.
and
the-& 1 5
Steep Slope I lazard Area
Maps delineating landslide areas, steep slopes and
(no map referenced in the
coal mine hazard areas within Tukwila are
KCSWDM)
available at the Department of Community
Developm nt service desk.
Critical Aquifer Recharge
Not applicable.
Area (as defined in KCC
21A.06)
Wildlife Habitat
Fish and wildlife habitat conservation areas will
Conservation Area (as
be regulated through TMC Chapter 18.44,
defined in KCC 21A.06)
Shoreline Overlay District and the regulations in
TMC Chapter 18.45 related to wetlands and
watercourses.
Wildlife Habitat Networks
No equivalent.
(as defined in KCC
21A.06
All references in the SWDM to the Stormwater Pollution Prevention Manual
shall mean and refer to the SPPM as adopted by the City of Tukwila pursuant
to this Chapter 14.30 of the Tukwila Municipal Code.
All references in the SPPM to the Stormwater Design Manual shall mean and
refer to the SWDM as adopted by the City of Tukwila pursuant to this Chapter
14.30 of the Tukwila Municipal Code.
The definition of Critical Drainage Area in Chapter 1 of the SWDM is amended
by striking "by administrative rule under the procedures specified in KCC
2.98."
The reference in Section 1.1.2.4 of the SWDM to Urban Planned Development
shall mean and refer to the equivalent such designation under the City of
Tukwila Comprehensive Plan as determined by the City of Tukwila
Community Development Director.
The note following the third sentence of Section 1.1.3 of the SWDM is stricken.
The last paragraph of Section 1.1.4 beginning with "Additional mitigation" is
stricken.
The reference in Section 1.2.2 at paragraph 2 of the SWDM to KCC 21A.24.110
shall mean and refer to the applicable provision of Title 19 of the Tukwila
Municipal Code.
All references to Critical Area Review in the SWDM and the SPPM shall mean
and refer to Critical Area Review pursuant to Title 18 of the Tukwila Municipal
Code.
References in the SWDM and SPPM to Chapter 16.82 of the King County Code
shall mean and refer to the clearing and grading provisions of Title 16 of the
Tukwila Municipal Code.
Subsection F of Section 1.2.4.3 of the SWDM is omitted.
The ' reference in Section 1.2.7 to King County Ordinance 12020 shall mean and
refer to the financial izuarantee requirements of the applicable provisions of the
AIMKIx4j\ R(fj!U-jS\A TIKELo 112ESP�rozAiUJ29 IZIO
Qrdinn, . r,�ft2(1L6 'SILDLA o if, d f"
RT d-c
WA
N4 2N
4A....VIA4 0�,4.2
GV:ksn Page 8 of 15
13
Tukwila Municipal Code or the Public Works Surface Water Regulations and
Procedures.
Section 1.4.4 of the SWDM is stricken and replaced with the following:
All variances ("Adjustments") from Chapter 14.30 of the TMC, the SWDM and
the SPPM shall be governed by the procedures, standards and requirements set
forth in Chapter 18.72 of the Tukwila Municipal Code, as it now exists or may
hereafter be amended.
The reference in Section 1.4.5 of the SWDM to KCC 20.20 shall mean and refer
to the applicable provisions of Title 18 of the Tukwila Municipal Code.
References to offices of King County shall mean and refer to the equivalent
offices of the City of Tukwila.
Except when the context indicates otherwise, references in the SWDM and the
SPPM to specific codes or sections of codes of King County, such as the King
County critical areas code, shoreline management code, clearing and grading
code, and road standards, shall mean and refer to the equivalent codes or
sections of codes of the City of Tukwila.
14.30.070 Permits.
A. The application for and issuance of a surface water/storm drainage permit
constitutes the administrative mechanism for the enforcement of the provisions
contained herein. Such permits shall be non-transferable without approval of the Public
Works Director and shall be limited to the specific activities for which they are granted.
B. Activities that trigger drainage review pursuant to the Surface Water Design
Manual require a permit. Permit application shall be made to the City's permit center.
C. All plans, drawings and calculations shall be prepared, stamped, signed and
dated by a registered professional engineer, licensed in the State of Washington. A
single - family residence that is not in a sensitive area and does not trigger drainage
review may be exempt from this requirement.
D. The submittals for the permit must meet or exceed the minimum criteria in the
Surface Water Design Manual and the City's Development Guidelines and Design and
Construction Standards. The Director may require additional submittals to those
described therein.
E. Any significant changes to the approved plans or specifications of a permitted
project require a revision submittal to the City for approval before the changes are
implemented.
14.30.080 Stormwater Drainage System Maintenance and Inspection Requirements.
A. All Stormwater Drainage Systems. All public and private stormwater drainage
systems providing permanent stormwater treatment and/or flood control shall be
inspected and maintained in accordance with the standards contained in the Surface
Water Design Manual. The following are additional minimum standards for the
maintenance of all stormwater drainage systems:
1. All stormwater treatment and flow control components of stormwater
drainage systems shall be inspected annually, but the frequency of such inspections
may be reduced based on inspection records. Owners of private stormwater drainage
systems shall be responsible for maintenance, inspection and corrections. The City will
perform periodic inspections of these same stormwater drainage systems.
2. When an inspection identifies an exceedance of the maintenance standard,
maintenance shall be performed by the owner or person in control of the stormwater
drainage systems within the following time period:
R_�EW I n.&TROLLk lj\ AJAZ Pr s 1Q1 S Pro rUJ99 ;3AL� 15 NotALI U� 6K� W)M
_IWL _�W WWU_QEpL_ _,A R&O VW_ -5 L_
L)rdin dagtJ hA_fLZQ_tLKA!5W_UMLCW _1b&R11r4Kkg."i&
............
GV:ksn Page 9 of 15
14
a. Within one year for wet pool facilities, infiltration facilities, and detention
facilities including detention pipes, ponds and valves;
b. Within six months for routine maintenance operations;
c. Within nine months for maintenance requiring re-vegetation; and
d. Within two years for maintenance that requires capital construction ofless
than $25,000.00.
3. The Director or his or her designee may order corrective maintenance to
occur within o specific time period.
4. The Director has unlimited accean - ataDzcaanneblctioz o -bu any property
whenever the Director has reasonable cause to believe violations ofTMC Chapter I4.30
are present or oyc,utio8 on a subject property, whenever ncoaeeory to make an
inspection or pcz6ozrn activities to enforce any provisions of TMC Chapter 14.30,
whenever necessary to monitor proper function of drainage facilities or whenever the
condition ofo surface water system presents imminent hazard.
5. When the City has given e atn/oowatcrdzeinaXe system owner or person in
control prior notification and the owner or person in control has failed to maintain such
stormwater drainage system or when conditions make it impossible to give prior notice,
the City may perform the required maintenance or repairs with the cost nfsaid vvntk
assessed as u lien against the properties responsible for the maintenance. This action
shall be io addition to any other enforcement provisions provided inTMCChapter
14.30.
6. Maintenance of private ot000nmte/ drainage oyateuza and implementation of
best management practices are the responsibility of the nvrue/s and yez000m in control
oF the otorozwoter drainage systems.
7. If the property owner(s) or yc/eon in control does not maintain the
etorozn'aoer drainage system aaprescribed in the approved maintenance schedule, the
Director may issue a written notice specifying the required actions and setting a time
frame for completion of the specified actions. If these corrective actions are not
performed in a timely manner, the City or a private contractor hired by the City may
enter the property to perform the actions and bill the property owner(s) and/or person
in control for the cost of the work. Io the event the Director determines obozord to
public safety exists, written notice is not required.
B. New Facilities.
l. For privately-owned aboroxwmer drainage eyo»enze, the applicant eba8
provide o monitoring and ouubzteoaoce schedule for the life of each atnrnzwate,
drainage system or component thereof or best management practice resulting from the
development. At a minimum, the schedule oboD describe the maintenance activities,
spell out the frequency for each activity and state who performs and who pays for each
activity.
2. The monitoring and maintenance schedule shall provide unlimited access, at
all reasonable times, to the etnrozp/ terdzaiuoOcoyotcnne for inspection by the Public
Works Department.
3. The Director shall review and approve the monitoring and maintenance
schedule before the applicant records the schedule with King County Records.
4. ()vvnero of projects distributing over one acre must ouubntabz records of
facility inspections and maintenance actions. Records shall be retained for u period o{at
least ten years. These maintenance records are to6e provided to the City upon request.
GV:ksn Page 10 of 15
IN
5. For new residential developments in excess ofI acre, additional inspections
are required of all new flow control and water quality treatment facilities, including
catch 6aobm' every sixrouotbo during the period of heaviest residential c000bocboo
(i.e, l to 2yeurm following subdivision approval) to identify maintenance needs and
enforce compliance with maintenance standards as needed. The City will perform
periodic inspections of these same atnronvo»er drainage systems.
14,30.090 Special Drainage Fee. When the City accepts etoro`n'ater drainage system
infrastructure that requires upkeep in excess of normal maintenance, the City has the
right to charge the benefiting parties m special drab`u8c 6cc io addition to the City's
normal surface water charge, as condition ofturnover, iu order m cover costs for this
maintenance.
14.30.100 Inlet Marking.
A. All new inlets and catch baaio^&1atl-,,public or private, shall 6emarked "No
Dumping! Drains to Stream." In addition, a four inch raised
states "No d Public Works
Director.
B. Existing inlets and catch basin �I���viu�euak6ogreeu6ecedoz when b�ng
onodd6ed o, replaced, shall 6e marked "No Dumping! Drains toSbeanu"_ln_a1dbtiolua
four inch rai. Drains to Streams" or
the Public Works Director,
C. The marking shall meet the standard in the City's Development Guidelines and
Design and Construction Standards.
A. Resta
facilities with an outdooj-ttgjh-����
facilities that have been determined to
have a dedicated roof covered trash enclosure that drains to a catch basin connected to a
sh enclosure area shall be
B.
9.,arbaae and waste containers shall be leak-proof and kel2t closed or lidded at all times
containment. The area shall be kevt clean and clear of aiiy fats, oil or grease and not
14.30.UO120 Financial Guarantees.
A. The Public Works Director may require from the applicant a surety, cash bond,
irrevocable letter of credit or other means of financial guarantee acceptable to the City,
prior m approving the permit.
B. The amount of the financial guarantee shall not he less than the total estimated
construction cost ofall interim and permanent atoroo°oter control facilities and shall
not be fully released without final inspection and approval of completed work by the
nvv= Page llofl5
11m
C. For developments that may involve a risk of property damages or possible
hazards, the Public Works Director may require the provision of financial guarantee
(bond, note, letter of credit, etc.) with the City to mitigate damages should they occur.
The following provisions shall apply in instances where such financial guarantees are
required:
1. Such bond or other proof of financial guarantee shall not exceed 150% of the
estimated cost of constructing and maintaining those improvements which are the
source of the risk or potential hazard; provided that, in the case of surface water
activities which do not involve expenditures at least equal to the cost of remedying the
possible adverse impacts of such activities, the required financial guarantee shall be
equal to City staff's best estimate of the possible cost directly associated with remedying
the adverse impacts to public or private properties not associated with the
development.
2. The amount of any financial guarantee shall not serve as a gauge or limit to
the compensation collected from a property owner because of damages associated with
any surface water activity.
D. The City shall retain the financial guarantee until the completion of any project
involving surface water activity or following a prescribed trial maintenance period.
E. The City of Tukwila may redeem financial guarantees provided in accordance
with this provision in whole or in part upon determination by the Public Works
Director that any or all of the following circumstances exist:
1. Failure on the part of the party providing such financial guarantee to fully
comply, within the time specified, with approved plans and /or any corrective or
enforcement actions mandated by TMC Chapter 14.30; or,
2. Damages to public or private property arising from the activities for which
the financial guarantee was required.
14.30.120 Insurance.
A. If, in the opinion of the Public Works Director, the risks to property or life and
safety associated with a proposed development activity are substantial, said official
may require the property owner to purchase liability insurance coverage in the
following minimum amounts:
1. Bodily injury liability - $1 million per occurrence.
2. Property damage liability - $1 million per occurrence.
B. The Public Works Director may require higher policy limits than set forth in
TMC Section 14.30.120A in those cases where the minimum amounts are deemed
insufficient to cover possible risks. All insurance policies obtained in accordance with
these provisions shall name the City of Tukwila as an "additional insured," and shall be
written by a company licensed to do business in the State of Washington. Neither
issuance of a permit, nor compliance with these provisions or any other conditions
imposed by the City relieves any person from responsibility for damage to persons or
property otherwise imposed by law, nor for damages in an amount greater than the
insured amount. Issuance of a permit shall not form the basis of liability against the City
for damages to persons or property arising from the development activities permitted
by the City or otherwise undertaken by any person.
14.30.130 Exceptions.
A. Requested by Applicant.
AY\PW [n TRO.T1LTS \A- 1& Pro Ws P6LS P rs. 1A- 1�,9, „:W 10)} 2(&S 017.LdL) 1y_G "nt1<7ti LID 'vim Anal mi QI6,K�'SWDM
cv:k,n _ Page 12 of 15
17
1. The Director may grant a written exception from any requirements of TMC
Chapter 14.30 if there are exceptional circumstances applicable to the site such that strict
adherence to the provisions contained herein will result in unnecessary hardship and
not fulfill the purpose of TMC Chapter 14.30. The cost to design and construct the
improvements shall not constitute hardship and shall not form the basis for an
exception.
2. The applicant shall provide the Director a written request stating the specific
exception sought and the reasons supporting the exception.
3. The Director may grant an exception to TMC Chapter 14.30 only if all of the
following criteria are met:
a. Strict compliance with the provisions of TMC Chapter 14.30 may
jeopardize project feasibility and reasonable use of property;
b. Proposed drainage facilities are consistent with the purpose and intent of
TMC Chapter 14.30;
c. Granting the exception or standard reduction will not be detrimental to
the public welfare, public safety, existing drainage systems or other property in the
drainage basin; and
d. The recommendation of a registered civil engineer supports the exception.
B. Low Impact Development.
1. In order to achieve the City's goal of increasing the amount of development
with less impervious surface, the Director may approve exceptions to Public Works
standards, including street standards. Exceptions requiring approval under the land use
codes, such as parking and landscaping, must be made to the Department of
Community Development.
2. The applicant shall provide justification for each exception and shall show
that the project meets all other TMC requirements and that the project has a reasonable
assurance of long-term success.
3. Each exception shall be assessed on the following criteria:
a. The result will compensate for or be comparable with surface water flow
control and treatment that is in the public's interest;
b. The exception contributes to and is consistent with achieving low effective
impervious surface area within a development;
c. The exception contains reasonable assurances that low effective
impervious surfaces will be achieved and maintained;
d. Granting of the exception will not threaten public health and safety;
e. The exception meets or is consistent with generally accepted engineering
design practices;
f. The exception promotes one or more of the following:
(1) Innovative site or housing design,
(2) Increase in on-site surface water retention using native vegetation;
(3) Retention of at least 60% of natural vegetation conditions over the site;
(4) Improved on-site water quality beyond that required in current
standards adopted by the City;
GV:ksn ...... Page 13 of 15
18
(5) Retention m recreation of predevelopment and/or natural hydrologic
conditions to the maximum extent possible; and
(6) Reduction c6 effective impervious surface m lowest extent practicable.
O. The exceptions do not present significantly greater maintenance
requirements at facilities that will eventually be transferred to the public ownership;
b. Covenant, conditions and restrictions necessary for native growth
protection easements, impervious surface restrictions and n&ez such critical features
necessary for the exceptions will be recorded against and will be binding against all
affected properties.
C. The Director may require a monitoring and evaluation plan io order tomeasure
performance o( specific elements iu the exceptions.
D. The Director may require o performance bond for 15O% nf the installation cost of
the exceptions.
E. The Director may require a two-year maintenance bond for 20% of the
construction cost.
I4.30.140 Liability. Liability for any adverse bzg/acb or damages resulting from
work performed bn accordance with any pero-dt issued oo behalf of the City o{Tukwila
for the development of any site within the City limits shall be the sole responsibility of
the applicant.
14.30.150 Penalties. The following penalties shall be applied in whole nrbn part for
the violation of permit conditions or for the failure to obtain permits required for
activities regulated byTMC Chapter 14.30. All remedies shall be considered cumulative
in addition to any other lawful action. Each day that u violation of this code is
committed or permitted to continue constitutes a separate offense to which both the
civil and oinzbzal penalties set forth below shall apply.
l. The violation o{or failure to comply with any order oz requirements made bn
accordance with the provisions of TMC Chapter 14.30 is a civil violation. The provisions
o(TMC Chapter 8.45 shall he used to enforce this code.
2. It obaD not be u defense to the prosecution for failure on obtain a permit
required under TMC Chapter 14.30 that a contractor, subcontractor, person with
responsibility on a site or person auUmdzbzD or directing the work erroneously
believed o permit had been issued to the property owner or any other person.
14.3U.16O Abatement. The City may abate any surface water activity that is deemed
o public nuisance and is performed in violation ofTMC Chapter 14.30 or any lawful
order or requirement of the Director.
14.30.170 Injunctive Relief.
A. Whenever the City has reasonable cause to believe that any person is violating or
threatening to violate IMC Chapter 14.30 or any rule or other provision adopted or
issued pursuant to TMC Chapter 14.30, it may either before or after the institution of
any other action or proceeding authorized by TMC Chapter 14.30 institute a civil action
in the name of the City for injunctive relief to restrain the violation or threatened
violation. Such action shall he brought in King County Superior Court.
B. The institution nfau action for injunctive relief under TMC Chapter 14.3Ushall
not relieve any party u/ such proceedings from any penalty prescribed for violations of
TMC Chapter 14.30.
14.30.100 Appeals. The appeals process for/by any person aggrieved hy the action
of the City is provided under TMC Chapter 8.45,"Enforcaoent."
Gv*,n Page l4nflj
IN
Section 2. Repealer. Ordinance No. 2064 is hereby repealed.
Section 3. Severability. If any section, subsection, paragraph, sentence, clause or
phrase of this ordinance or its application to any person or situation should be held to
be invalid or unconstitutional for any reason by a court of competent jurisdiction, such
invalidity or unconstitutionality shall not affect the validity or constitutionality of the
remaining portions of this ordinance or its application to any other person or situation.
Section 4. Effective Date. This ordinance or a summary thereof shall be published in
the official newspaper of the City, and shall take effect and be in full force fiv*-4a", On
I)eceml)e.r312016 after passage and publication as provided by law.
PASSED BY THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON,
at a Regular Meeting thereof this ............. ... . ....... .......... . ..... day of . ....... . ............ . ............. . . ........ . ................. . _ . ............ .. .
24W2016.
ATTEST/ AUTHENTICATED:
Christy O'Flaherty, CMC, City Clerk
APPROVED AS TO FORM BY
Office of the City Attorney
.4.n+44af,t-e+1-off Mayor
Filed with the City Clerk:
Passed by the City Council:
Published:
Effective Date:
Ordinance Number:
Attachments: Exhibit A - The 2009-2016 King County Surface Water Design Manual
(KCSWDM)
Exhibit B - The 24-A-2016 King County Stormwater Pollution Prevention
Manual (KCSPPM)
141210 JS' qj_5,20fl
_�;4L 'g-uq\()Uk 1117 Q ip Anse yLi aQ � (12.iWIN
..... . ....
A pr
04 . ..... .
GV:ksn Page 15 of 15
011
Low Impact Development Milestones and Adoption Schedule
1. December 16, 2015
- LID Gap Analysis Consultant Agreement with Otak, Inc. signed.
2. February 5, 2016
- Staff & Otak begin LID coordination teleconference bi- weekly meetings.
3. February 23, 2016
- LID Team Introduction Kickoff meeting with Otak and key department staff, PW, DCD, Fire, Water,
Sewer /Surface Water, Street, and Parks Departments - Otak
- Utilities Committee LID Code Update presentation - PW /Otak
4. March 21, 2016
- LID Team second meeting and review LID gap analysis - Otak
- Transportation Committee Lid Code Update presentation - PW
5. May 14, 2016
- Provide LID information booth at Wildlife Festival — PW
6. April 29, 2016
- Review TMC & King County SWDM equivalency - PW
7. May 25, 2016
- PW staff begin review of LID Code Update findings and recommendations report
- Otak begins developing plant list
8. June 20, 2016
- LID Code recommendation finalization teleconference meeting
9. July 8, 2016
- Otak begins Infrastructure Design and Construction Standards updates and Standard details updates
10. August 10, 2016
- Surface Water Low Impact Development Open House held at TCC PW
11. August 29, 2016
- Online Agenda Item Submission Form submitted to City Clerk's Office — PW
12. September 6, 2016
- Submit Utilities Committee info memo to RL /GL /SM. Attach LID schedule, Utilities and
Transportation Committee previous minutes (FYI) — PW
- Brief City Administrator on LID code amendments & KCSWDM adoption items — PW
13. September 9, 2016
- Otak submits final draft of TMC 16 & 18.
- Forward three draft code revisions (TMC 14,16, and 18) to Moira /DCD to send to Department of
Commerce (60 day comment period) - PW
14. September 13, 2016
- Utilities Committee, request approval to adopt TMC Title 14 -2016 King County Surface Water
Design Manual and forward to COW. - Info memo PW
041
W: \PW Eng \PROJECTS \A - DR Projects \NPDES Program (99341210) \2015 2017 Capacity Grant \Otak LID Gap Analysis \LID Adoption Schedule GAV.docx
- Request approval to forward code amendments to Title 18 to the October 27, 2016 Planning
Commission for Public Hearing and recommendation - Info memo PW
- Executive Staff Title 14 Ordinance review period over. Forward Title 14 Ord. to City Attorney & City
Clerk's office for review and preparation - PW
15. September 26, 2016
- Committee of the Whole, request approval to adopt the 2016 King County Surface Water Design
Manual and 2016 Stormwater Pollution Prevention Manual. Forward to Council Regular Meeting.
PW.
16. September 27, 2016
- Utilities Committee, request approval to adopt Title 16 - Grading
17. October 11, 2016 (or sooner)
- Submit Public Notice to Wynetta /DCD for Planning Commission Public Hearing — PW
18. October 13, 2016
- Submit Planning Commission packets, Title 18, to Wynetta /DCD - PW
19. October 19, 2016 (or sooner)
- Submit Public Notice language /description for Ordinance 16, & 18.
20. October 31, 2016
- Public Hearing notice publish date for Nov. 14th COW Public Hearing
21. October 27, 2016
- Planning Commission, LID presentation by OTAK. TMC, Title 18 - Zoning, Chapter 18.06, 18.20,
18.28, 18.5 2, 18.56 — OTAK, PW
- Anticipate Planning Commission recommendations to Committee of Whole on November 14th
22. November 9, 2016
- Expect Department of Commerce notice
23. November 14, 2016
- Committee of Whole, LID presentation by OTAK, Public Hearing on draft ordinances, for Title 14, 16
& 18. Otak, PW.
- Anticipate COW to forward recommendations to Council Regular meeting on November 21"
- Present Planning Commission LID finding & recommendations. Request forwarding
recommendations to Council regular meeting November 21s'
24. November 21, 2016
- Council Regular meeting. Anticipate adoption of TMC Title 14, 16, and 18 - with effective dates of
December 31, 2016.
Pia
W: \PW Eng \PROJECTS \A - DR Projects \NPDES Program (99341210) \2015 2017 Capacity Grant \Otak LID Gap Analysis \LID Adoption Schedule GAV.docx
City of Tukwila
Allan Ekberg, Mayor
TO:
Utilities Committee
'611
FROM:
Bob Giberson, Public Works Director
BY:
Greg Villanueva, NPDES Coordinator
CC:
Mayor Ekberg
DATE:
September 9, 2016
SUBJECT:
National Pollutant Discharge Elimination System (NPDES)
Project NO. 99341210
Low Impact Development Code Update — TMC Title 18
Evil
ISSUE
Review new LID code updates to Tukwila Municipal Code (TMC) Title 18 - Zoning.
BACKGROUND
The City's National Pollutant Discharge Elimination System (NPDES) Phase 11 permit requires
the City to review, revise, and make effective their local development related codes, rules
standards, or other enforceable documents to incorporate and require Low Impact Development
(LID) principles and LID Best Management Practices no later than December 31, 2016. As part
of this effort, the City's consultant, Otak, and staff from various departments reviewed all
development codes to determine which required updating to facilitate LID implementation and
remove barriers. TMC Title 18 — Zoning was determined to not be consistent with Department of
Ecology requirements and requires updating.
ANALYSIS
Staff, working with Otak, identified LID code updates that needed to be inserted into Title 18 —
Zoning. Draft amendments to this code have been made in strikeout & underline in codified
format for review and comment by the Planning Commission.
FINANCIAL IMPACT
No financial impact.
RECOMMENDATION
Utilities Committee approval to forward the proposed changes to TMC Title 18 — Zoning to the
Planning Commission for review and comment. Final amendments, in Ordinance form, will
return to Utilities Committee and full Council for final approval and adoption in the 4t" Quarter of
2016.
Attachments: Draft Zoning Ordinance (codified version).
WAPW Eng\PROJECTS\A- DR Projects\NPDES Program (99341210)\2015 2017 Capacity Grant\Otak LID Gap Analysis\Info Memo 2016 UC LID Code Update RDL2 sb.doc
CHAPTER 18.06 18.20.080 Basic Development Standards
DEFINITIONS Development within the Residential Commercial Center
District shall conform to the following listed and referenced
standards:
18.06.586 Native Vegetation
"Native vegetation" means plant species, other than noxious
weeds, that are indigenous to the coastal region of the Pacific
Northwest and that reasonably could be expected to have
occurred naturally on the site. Examples of these plant species
include Douglas fir, western hemlock, western red cedar, alder,
big -leaf maple, vine maple, willow, elderberry, salmonberry,
salal, sword fern, foam flower, and firewee NagatatieR —wit �
(Ord. 2347 21, 201 1)
RESIDENTIAL IE I I L CENTER
(R CC) DISTRICT
RCC BASIC DEVELOPMENT STANDARDS
Lot area, minimum
5,000 sq. ft.
Lot area per unit (multi - family),
3,000 sq. ft.
minimum
Setbacks to yards (min.):
• Front
20 feet
• Second front
10 feet
• Sides
5 feet
• Sides, if any portion of the
10 feet
yard is within 50 feet of LDR,
MDR, HDR
• Rear
10 feet
Height, maximum
3 stories or 35 feet
Landscape requirements (minimum): All setback areas shall be
landscaped. Required landscaping may include a mix of plant
materials, bioretention facilities, pedestrian amenities and
features, outdoor cafe -type seating and similar features,
subject to approval. See Landscape, Recreation,
Recycling /Solid Waste Space chapter for further requirements
• Front
20 feet
• Second front
10 feet
• Sides, if any portion of the
10 feet
yard is within 50 feet of LDR,
MDR, HDR
• Rear, if any portion of the
10 feet
yard is within 50 feet of LDR,
MDR, HDR
Recreation space
200 sq. ft. per dwelling unit
(1,000 sq. ft. min.)
Off- street parking:
• Residential
See TMC Chapter 18.56,
Off- street Parking & Loading
Regulations
• Accessory dwelling unit
See Accessory Use section
of this chapter
• Office, minimum
3 per 1,000 sq. ft.
usable floor area
• Retail, minimum
2.5 per 1,000 sq. ft.
usable floor area
• Other uses
See TMC Chapter 18.56,
Off- street Parking & Loading
Regulations
Performance Standards: Use, activity and operations within a
structure or a site shall comply with (1) standards adopted by the
Puget Sound Air Pollution Control Agency for odor, dust, smoke
and other airborne pollutants, (2) TMC Chapter 8.22, "Noise ", and,
(3) adopted State and Federal standards for water quality and
hazardous materials. In addition, all development subject to the
requirements of the State Environmental Policy Act, RCW 43.21 C,
shall be evaluated to determine whether adverse environmental
impacts have been adequately mitigated.
(Ord. 1976 39, 2001, Q", rd. 1872 3, f y�
Ord. 1758 § f (pail), 1995)
24
CHAPTER 1 .
DISTRICT
18.28.070 Structure Height
A. The minimum and maximum height of a structure
shall be as specified by District or modified by a special height
overlay. See Table 3, "District Standards."
1. Structures oriented to Baker Boulevard shall
have an average height at least as high as the minimum listed
in Table 18 -3, "District Standards."
B. Pond Edge Height Limit.
1. Development located within 150 feet of the edge
of Tukwila Pond is not eligible for incentive height increases.
2. The maximum height in this location shall be as
specified by District.
C. Public Frontage Improvement Height Incentive.
1. As an incentive to provide public frontage
improvements and /or new streets that are not otherwise
required under this code, allowable structure heights may be
increased to the limits as specified for each District as shown
in Table 18 -3, "District Standards," when:
a. Developers construct public frontage
improvements along their parcel frontages on existing streets,
constructed to the standards of this code; or
b. Developers construct new 20 foot wide half
streets with one side of public frontage improvements,
constructed to the standards of this code; or
c. The existing sidewalk width and configuration
along a parcel's frontage meets or exceeds the public frontage
standard and, when averaged, the landscape width and street
tree spacing meet the required public frontage standard.
Additional sidewalk width may substitute for an equal area of
landscaping.
d. In order to take advantage of this incentive,
the public frontage improvements must start and stop at
property boundaries, intersections or traffic signals and
transition safely to neighboring conditions.
2. The public frontage height incentive will be
applied proportionally to parcels with more than one frontage
based on the following:
a. Each frontage will be evaluated separately
based on its Corridor Type's public frontage standards.
b. The height bonus will be applied to a
percentage of the total building footprint(s) on site based on
the percentage of the parcel's total public frontage that, when
averaged, meets the public frontage standard. For example,
when averaged, if one of a parcel's two similar length
frontages meets the corridor's public frontage standard, then
50% of the total building footprint on site is eligible for the
height incentive.
D. Multi - Family Height Incentive.
1. As an incentive to construct residential dwelling
units, allowable structure heights may be increased to the
limits specified in Table 18 -3, "District Standards."
2. Structures may be completely residential or
mixed use, with residential uses comprising at least half of the
occupied floor area of the building.
E. Structured Parking Height Incentive
1. As an incentive to reduce impervious cover
associated with parking lots and increase areas of native
vegetation, allowable structure heights may be increased to
the limits specified in Table 18 -3, "District Standards," when:
a. Developers place a minimum of 80 percent of
the minimum required parking stalls within structured parking
(transferred parking); and
b. Developers restore as a native growth
retention area an area equal to 40 percent of the area that
otherwise would have been needed to construct the
transferred parking as a surface lot.
2. In order to take advantage of this incentive, the
native growth retention area must meet specifications of the
native vegetated landscape of the Surface Water Design
Manual, adopted in accordance with TMC Chapter 14.30 and
must be set aside by a covenant, easement, or tract and
preserved and maintained for the life of the project.
€F. Structures qualify for increased height as set forth in
Table 18 -3, "District Standards," when integrating any of the
following combination of height incentives:
1. In the TUC -TOD District, allowable structure
heights may be increased to 115 feet for developments that
meet the requirements of two of the three available height
incentives: the frontal improvement, aPA-multi- family, or
structured parking .
2. In the TUC -TOD District, allowable structure
heights may be increased to 115 feet for developments that
achieve a LEED certification of silver or higher and meet a hef
the requirements of one of the three available height
incentives: the frontal improvement,__--ef—multi- family,
structured parking .
3. In the TUC -TOD District, allowable structure
heights may be increased to 115 feet for developments that
meet the multi - family height incentive requirements and make
at least 20% of the residential units affordable per the
standards in WAC 365 - 196 -870. For rental units, affordability
is set at 50% of the county median family income, adjusted for
family size. For owner - occupied units, affordability is set at
80% of the county median family income, adjusted for family
size.
(Ord. 24.4 §8, 2014.)
18.28.240 General Landscaping
A. The provisions herein are applicable to setbacks,
public frontage areas, open space, and other areas on-
premises. These regulations address plant materials and
design, visibility, irrigation, landscape plans, utility and service
areas.
B. General Landscaping Requirements.
1. Plant Materials.
a. A mix of evergreen trees and evergreen
shrubs shall be used to screen blank walls.
041
b. All plant material shall meet the most recent
American Standards for Nursery Plant Stock (ANSI Z60.1).
c. Evergreen trees shall be a minimum of 6 feet
in height at time of planting.
d. Deciduous trees shall be a minimum 2.5 inch
caliper six inches off the ground when installed.
e. Shrubs shall be at least 18 inches in height at
time of planting.
f. Existing vegetation may be used to meet the
perimeter landscaping requirements. All significant trees
located within any required perimeter landscape area that are
not dead, dying, or diseased and that do not pose a safety
hazard as determined by the City or a qualified arborist shall
be retained and protected during construction with temporary
fencing or other enclosure, as appropriate to the site. The
area designated for protection will vary based on the tree's
diameter, species, age, and the characteristics of the planted
area. Property owners may be required to furnish a report by
an International Society of Arborist (ISA) certified arborist to
document a tree's condition. The Director may require that an
ISA certified arborist be retained to supervise tree protection
during construction. Grade changes around existing trees are
to be avoided whenever possible.
g. New plant materials shall include native
species or non - native species that are drought tolerant and
have adapted to the climatic conditions of the Puget Sound
Region. There must be a diversity of tree and shrub genus
and species in the site landscaping, taking into account
species in existing development around the site.
h. No species that are listed on the State or
King County noxious weed lists may be planted.
i. Plant materials shall be selected that
reinforce the landscape design concept, and are appropriate
to their location in terms of hardiness, tolerance to urban
conditions, maintenance needs and growth characteristics.
Large and medium canopy tree species are required, except
where there is insufficient planting area (due to proximity to a
building, street light, above ground or underground utility line,
etc.).
2. Visibility.
a. Design of new landscaping and maintenance
of existing landscaping shall consider Crime Prevention
Through Environmental Design (CPTED) principals and
visibility for safety and views. Appropriate plant species shall
be specified to avoid the need for excessive maintenance
pruning. Trees along the street frontages, as they mature,
shall be limbed up to a minimum height of 6 feet (8 feet where
they extend over sidewalks) to allow adequate visibility and
clearance for vehicles. Trees may be pruned to improve
views of signage and entryways by using such techniques as
windowing, thinning, and limbing -up. However, no more than
1/4 of the canopy may be removed within any 2 -year period,
and the crown should be maintained to at least 2/3 the height
of the tree. All pruning shall be done in accordance with ANSI
Standard A -300 specifications. Trees may not be topped for
any reason. Trees may only be pruned to lower their height to
prevent interference with an overhead utility or electrical line,
with prior approval by the Director.
b. Landscaping shall not obstruct views from or
into the driveway, sidewalk or street. Landscape design shall
allow for surveillance from streets and buildings and avoid
creating areas that might harbor criminal activity.
c. Landscaping at crosswalks and other
locations where vehicles and pedestrians intersect must not
block pedestrians' and drivers' views.
d. Evergreen shrubs and trees shall be used for
screening along rear property lines, around solid
waste /recycling areas and mechanical equipment, and to
obscure grillwork and fencing associated with subsurface
parking garages.
3. Soil Preparation and Planting.
a. For trees planted in sidewalks and parking
lots, Cornell University CU- Structural Soils must be used to a
preferred depth of 36 inches, to promote tree root growth and
provide structural support to the paved area. Minimum soil
volumes for tree roots shall be 750 square feet per tree (see
specifications and sample plans for CU- Structural Soils).
Trees and other landscape materials shall be directly planted
into a planting mix, approved by the Director, that is installed
on top of the structural soils.
b. For soil preparation in bioretention areas,
existing soils must be protected from compaction, and
bioretention soil media must be prepared in accordance with
Bioretention Soil Media Standard Specifications from the
Surface Water Design Manual, adopted in accordance with
TMC Chapter 14.30 to promote a proper functioning
bioretention system. These specifications shall be adhered to
regardless of whether a stormwater permit is required from the
CL
bc. For all other plantings, soils must be
prepared for planting in accordance with specifications to
restore soil moisture holding capacity in accordance with TMC
Chapter 16.54, Grading , "Rest
EGGIGQ �iA'p nomoni nii-r�rcfi —IA morn
n ashlrlft eR # as amaR49 7 regardless of whether a
stormwater permit is required by the City.
ed. The applicant will be required to schedule an
inspection by the City of the planting areas prior to planting to
ensure soils are properly prepared.
de. Installation of landscape plants must comply
with best management practices including:
(1) Planting holes that are the same depth
as the size of the root ball and 2 times wider than the size of
the root ball.
(2) Root balls of potted and balled and
burlapped (B &B) plants must be loosened and pruned as
necessary to ensure there are no encircling roots prior to
planting. At least the top 2/3 of burlap and all straps or wire
baskets are to be removed from B &B plants prior to planting.
(3) The top of the root flare, where the
roots and the trunk begin, should be about one inch from the 26
surrounding soil. The root ball shall not extend above the soil
surface.
(4) If using mulch around trees and
shrubs, maintain at least a 3 -inch mulch -free ring around the
base of the plant trunks and woody stems of shrubs. If using
mulch around groundcovers until they become established,
mulch shall not be placed over the crowns of perennial plants.
4. Irrigation.
a. The intent of this standard is to ensure that
plants will survive the critical establishment period when they
are most vulnerable due to lack of watering.
b. All required plantings must be served by a
permanent automatic irrigation system.
(1) Irrigation shall be designed to
conserve water by using the best practical management
techniques available. These techniques may include, but not
be limited to: drip irrigation to minimize evaporation loss,
moisture sensors to prevent irrigation during rainy periods,
automatic controllers to insure proper duration of watering,
sprinkler head selection and spacing designed to minimize
overspray, and separate zones for turf and shrubs and for full
sun exposure and shady areas to meet watering needs of
different sections of the landscape.
(2) Exceptions to the irrigation
requirement may be approved by the Director, such as
xeriscaping (i.e., low water usage plantings), plantings
approved for low impact development techniques, established
indigenous plant material, or landscapes where natural
appearance is acceptable or desirable to the City. However,
those exceptions will require temporary irrigation until
established.
5. Landscape Plan Requirements.
a. A Washington State licensed landscape
architect shall prepare and stamp the landscape plans in
accordance with the standards herein. Detailed plans for
landscaping and screening shall be submitted with plans for
building and site improvements. Included in the plans shall be
type, quantity, spacing and location of plants and materials;
typical planting details; and the location of irrigation systems.
Underground and at- ground utilities shall be shown on the
plans so that planting conflicts are avoided.
b. Installation of the landscaping and screening
shall be completed and a Landscaping Declaration submitted
by the owner or owner's agent prior to issuance of the
Certificate of Occupancy. If necessary due to weather
conditions or construction scheduling, the installation may be
postponed to the next planting season if approved by the
Director and stated on the building permit. A performance
assurance device equal to 150% of the cost of the labor and
materials must be provided to the City before the deferral is
approved.
6. Parking Lots.
a. Setback and Perimeter Landscaping:
(1) Surface parking lots shall set back a
minimum of five feet from any open space, building fagade, or
Corridor back of sidewalk. The setback shall be designed and
planted with:
(a) 1 evergreen shrub per 4 linear feet
of property line, excluding curb cuts.
(b) Sufficient live groundcovers of
varying heights, colors and textures to cover, within 3 years,
100% of the yard area not needed for trees and shrubs.
Groundcover must be planted with a minimum spacing of 12
inches on center for 4 -inch pots and 18 inches on center for 1-
gallon pots. If turf grass is being used as the groundcover, a
3 -foot diameter ring of bark mulch is required around any tree.
(2) Surface parking lots shall be buffered
from adjacent residential development with heavy screening in
the side and rear setback areas.
b. Interior Parking Lot Landscaping:
(1) For surface parking lots adjacent to
public or private streets, a minimum of 20 square feet of
interior parking lot landscaping is required for each parking
stall. In the Workplace District, a minimum of 15 square feet
per stall is required for warehouse and light industrial uses.
(2) For surface parking lots located behind
buildings or otherwise screened from public or private streets
or public spaces, a minimum of 10 square feet of interior
parking lot landscaping is required for each parking stall.
(3) Flexibility is allowed for the layout of
parking lots and landscaped areas, but the goal is to provide
shade from trees that are evenly distributed throughout the
parking lot. Planting trees in continuous, landscaped planting
strips between rows of parking is encouraged. This approach
may also be combined with surface water management
design. For parking lots adjacent to public or private streets, if
landscape islands are designed into the parking lot layout to
divide continuous rows of parking stalls, they must be placed
at minimum spacing of every 10 parking spaces. For parking
areas located behind buildings or otherwise screened from
public or private streets or public spaces, if landscape islands
are used, they shall be placed at a minimum of one island
every 15 parking stalls.
(4) Landscape islands must be a minimum
of 6 feet wide and a minimum of 100 square feet in area. All
landscaped areas must be protected from damage by vehicles
(curbs, tire stops, other techniques).
(5) Landscape islands shall be placed at
the ends of each row of parking to protect parked vehicles
from turning movements of other vehicles.
(6) A minimum of one large- canopy
evergreen or deciduous tree or two medium - canopy trees are
required for every 100 square feet of landscaped island, with
the remaining area to contain a combination of shrubs, living
groundcover, and mulch (see Figure 18 -47).
PAIA
Figure 18 -47: A single tree planted with no other materials and
little room for viability is not acceptable.
7. Utility and Service Areas. Utility easements
and other similar areas between property lines and curbing
shall be landscaped and /or treated with dust and erosion
control planting or surfacing. Trees proposed under overhead
transmission lines shall be approved by the City on a case -by-
case basis.
8. Street Trees in the Public Frontage.
a. Street tree spacing in the public frontage
shall be as specified in the applicable Corridor Standards. For
smaller stature trees (those with canopies at maturity of less
than 20 feet), spacing should be every 20 feet. For larger
canopy trees, spacing should be wider as appropriate to the
mature spread of the tree. Spacing will also need to consider
sight vision distance at intersections, driveway locations, and
utility conflicts.
b. Street trees in the public frontage shall be
planted to at least the following spacing standards:
(1) At least 3.5 feet back from the face of
the curb and with an approved root barrier installed on the
curb side.
(2) At least 5 feet from underground utility
lines.
(3) At least 10 feet from power poles.
(4) At least 7.5 feet from driveways.
(5) At least 3 feet from pad- mounted
transformers (except 10 feet in front for access).
(6) At least 4 feet from fire hydrants and
connections.
c. When used, tree grates and landscaped tree
wells shall be a minimum 36 square feet in size (6' x 6'). Tree
grates are not encouraged, but when used grates must have
easily removable rings so that sections of grate can be
removed incrementally as the tree matures. Tree well size
may be adjusted to comply with ADA standards on narrower
sidewalks. Root barriers must be installed at curb face. See
TMC Section 18.28.240.6.3, "Soil Preparation and Planting,"
for structural soil requirements.
d. Planting and lighting plans shall be
coordinated so that trees are not planted in locations where
they would obstruct existing or planned street or site lighting,
while maintaining appropriate spacing and allowing for their
size and spread at maturity.
9. Maintenance and Pruning.
a. Any landscaping required by this chapter
shall be retained and maintained by the property owner for the
life of the project in conformance with the intent of the
approved landscape plan and this chapter. Maintenance shall
include keeping all planting areas free of weeds and trash and
replacing any unhealthy or dead plant materials.
b. Pruning of trees is only allowed for the health
of the tree, to maintain sight distances or sight lines into
commercial areas, or if interfering with overhead utilities. All
pruning must be done in accordance with American National
Standards Institute (ANSI) A -300 specifications. No tree
planted by a property owner or the City to fulfill landscape
requirements, or any existing tree, may be topped or removed
without prior approval from the City. If a tree is topped or
removed without approval, it shall be replaced with a new tree
that meets the intent of this chapter within 120 days or the
property owner will be subject to code enforcement action per
TMC Chapter 8.45. Options at the Director's discretion are to
require replacement of the tree with a new tree of similar
species that will achieve a similar canopy size at maturity,
replace the tree with multiple smaller diameter trees of an
appropriate species (only if there are limitations on space or
conflicts with utility infrastructure), and /or require an in -lieu fee
for off -site tree replacement.
C. General Landscaping Considerations.
1. Plant Materials.
a. Drought resistant species are encouraged in
order to minimize irrigation requirements, except where site
conditions within the required landscape areas ensure
adequate moisture for growth.
b. The mature size of selected tree species
should be suitable to lot size, the scale of adjacent structures,
and the proximity to utility lines.
c. In general, deciduous trees with open
branching structures are recommended to ensure visibility to
retail establishments. More substantial shade trees are
recommended in front of private residences.
d. All trees should be selected and located so
they will not obstruct views to showroom windows and building
signage as they mature.
e. Evergreen landscaping (Figure 18 -48) is
appropriate for screening utility vaults, loading docks and
some storage areas. (Also see TMC Section 18.52.040 for
screening outdoor storage areas.)
28
Figure 18 -48: Using evergreen landscaping to screen utilities
f. Species selection is very important in
grouped plantings (Figure 18 -49). Drought tolerant species
are strongly recommended and monoculture plantings are
discouraged. Low maintenance cost and low replacement
costs are two advantages of planting drought tolerant species
in grouped configurations. Low (24 -30 inches) shrubs,
perennial or groundcover plantings that provide a superior
degree of separation between the sidewalk and street at
reduced maintenance costs may be used.
Figure 18 -49: Examples of landscaped tree wells
2. Design.
a. Shade trees should be planted to shade
buildings' east and west - facing windows to provide a balance
between summer cooling and winter heating through solar
gain.
b. All landscaped areas should be designed to
allow aquifer filtration and minimize stormwater run -off utilizing
bio - swales, filtration strips, and bio- retention ponds where
appropriate.
(Ord. 24.4 §25, 2014.)
f4 *]
CHAPTER 1 .52
f
j
J.
18.52.020 Perimeter Landscaping Requirements by
Zone District
A. In the various zone districts of the City, landscaping
in the front, rear and side yards shall be provided as
established by the various zone district chapters of this title.
These requirements are summarized in the following table,
except for Tukwila Urban Center (TUC) requirements, which
are listed in TMC Chapter 18.28.
ZONING
FRONTYARD
LANDSCAPE
LANDSCAPE
DISTRICTS
(SECOND
TYPE FOR
SIDE
REAR
TYPE FOR
FRONT)
FRONTS
YARD
YARD
SIDE /REAR
LDR
(for uses other
2
15
Type 1
10
10
Type I
than dwelling
units
MDR
1512
Type 1
10
10
Type 1
HDR
151,2
Type 1
10
10
Type 1
MUO
15 (12.5) 2
Type 17
54
54
Type 17
0
15 (12.5)2
Type 1�
54
54
Type 1�
RCC
20(10) 2,3
Type 17
1 54
10
Type 11
NCC
54
Type 17
04
04
Type 11
RC
10
Type 1
54
04
Type 118
RCM
10
Type 1
54
04
Type 118
TUC — See TMC
Chapter 18.28
C /LI
12.55
Type 16
55
05
Type 118
LI
12 52
Type 11
04
04
Type III
HI
1252
Type 11
04
04
Type III
M IC /L
55
Type 11
05
05
Type III
M IC /H
55
Type 11
05
05
Type III
TVS
1523
Type 11
04
04
Type III
TSO
1592
Type 1
010
010
Type III
Notes:
1. Minimum required front yard landscaped areas in
the MDR and HDR zones may have up to 20% of their
required landscape area developed for pedestrian and transit
facilities upon approval as a Type 2 special permission
decision. Bioretention may also serve as 20% of the reauired
front yard landscaping for MDR and HDR zones.
2. In order to provide flexibility of the site design
while still providing the full amount of landscaping required by
code, the front yard landscape width may be divided into a
perimeter strip and one or more other landscape areas
between the building and the front property line, if the
perimeter strip is a minimum of 10 feet and the landscape
materials are sufficient to provide landscaping along the
perimeter and screening of the building mass.
3. Required landscaping may include a mix of plant
materials, pedestrian amenities and features, outdoor cafe -
type seating and similar features, subject to approval as a
Type 2 special permission decision. Bioretention may also be
used as reauired landscar)ina for RCC. TVS. and TSO
districts. Required plant materials will be reduced in
proportion to the amount of perimeter area devoted to
pedestrian oriented space.
4. Increased to 10 feet if any portion of the yard is
within 50 feet of LDR, MDR or HDR.
5. Increased to 15 feet if any portion of the yard is
within 50 feet of LDR, MDR or HDR.
,0l
6. Increased to Type II if the front yard contains
truck loading bays, service areas or outdoor storage.
7. Increased to Type II if any portion of the yard is
within 50 feet of LDR, MDR or HDR.
8. Increased to Type III if any portion of the yard is
within 50 feet of LDR, MDR or HDR.
9. Only required along public streets.
10. Increased to 10 feet if adjacent to residential
uses or non -TSO zoning.
B. The landscape perimeter may be averaged if the total
required square footage is achieved, unless the landscaping
requirement has been increased due to proximity to LDR,
MDR or HDR. Landscape perimeter averaging may be
allowed as a Type 2 special permission decision if all of the
following criteria are met:
1. Plant material can be clustered to more
effectively screen parking areas and blank building walls.
2. Perimeter averaging enables significant trees or
existing built features to be retained.
3. Perimeter averaging is used to reduce the
number of driveways and curb cuts and allow joint use of
parking facilities between neighboring businesses.
4. Width of the perimeter landscaping is not
reduced to the point that activities on the site become a
nuisance to neighbors.
5. Averaging does not diminish the quality of the
site landscape as a whole.
(Ord. 24.42 § t, 2014, Ord. 2251 §61, 2009, Ord. 2235 § 13, 2009y
Ord. 1872 § t (part), 1999)
18.52.030 Perimeter Landscape Types
A. Type I landscape perimeter.
1. Purpose is to enhance Tukwila's streetscapes,
provide a light visual separation between uses and zoning
districts, screen parking areas, and allow views to building
entryways and signage.
2. Plant materials shall consist of the following:
a. One tree for each 30 lineal feet of required
perimeter excluding curb cuts; and
b. One shrub for each 7 lineal feet of required
perimeter excluding curb cuts or a planted berm at least 24
inches high; and
c. Living groundcover to cover 90% of the
landscape area within three years.
3. Bioretention may be used as a Type I landscape
perimeter, provided that the intent of the screen is achieved.
To support bioretention facility function and plant survival,
flexibility in plant materials and placement shall be allowed,
provided that public safety is not compromised.
B. Type H landscape perimeter.
1. Purpose is to enhance Tukwila's streetscapes,
provide a moderate visual separation between uses and
zoning districts, screen blank building walls and parking areas,
and allow views to building entryways and signage.
2. Plant materials shall consist of the following:
a. One tree for each 20 lineal feet of required
perimeter excluding curb cuts; and
b. One shrub for each 5 lineal feet of required
perimeter excluding curb cuts; and
c. Living groundcover to cover 90% of the
landscape area within three years.
3. Bioretention may be used as a Type II
landscape perimeter, provided that the intent of the screen is
achieved. To support bioretention facility function and plant
survival, flexibility in plant materials and placement shall be
allowed, provided that public safety is not compromised.
C. Type Ill landscape perimeter.
1. Purpose is to provide extensive visual separation
between industrial areas and nearby residential areas.
2. Plant materials shall consist of the following:
a. One tree per 20 lineal feet of required
perimeter excluding curb cuts; and
b. Shrubs to provide a solid planting screen with
a height of five to eight feet or a solid wooden fence or
masonry wall to be approved by the Community Development
Director; and
c. Living groundcover to cover 90% of the
landscape area within three years.
D. Plant material requirements.
1. Plants shall meet the current American Standard
for Nursery Stock (American Nursery and Landscape
Association — ANLA), and shall be healthy, vigorous and well -
formed, with well - developed, fibrous root systems, free from
dead branches or roots. Plants shall be free from damage
caused by temperature extremes, lack of or excess moisture,
insects, disease, and mechanical injury. Plants in leaf shall be
well foliated and of good color. Plants shall be habituated to
outdoor environmental conditions (hardened -off).
2. A mix of evergreen trees and evergreen shrubs
shall be used to screen blank walls.
3. Deciduous trees shall be used to allow visual
access to entryways, signage and pedestrian use areas.
4. Evergreen shrubs shall be used to screen
parking lots along street frontages.
5. In perimeters located adjacent to residential
zones 75% of trees and shrubs shall be evergreen.
6. Evergreen trees shall be a minimum of 6 feet in
height at time of planting.
7. Deciduous trees shall have at least a 2 inch
caliper at time of planting, determined according to the
American Standard for Nursery Stock.
8. Shrubs shall be at least 18 inches in height at
time of planting.
9. No plants listed on the current King County
Noxious Weed list may be used.
10. Existing vegetation may be used to meet the
requirements of this chapter. All significant trees located
within any required perimeter landscaping area which are not
dead, dying, or diseased and which do not pose a safety
hazard as determined by the Community Development
Director shall be retained. 31
11. The classification of plant material as trees,
shrubs and evergreens shall be as listed in the Hortus Third, A
Concise Dictionary of Plants Cultivated in the U.S. and
Canada.
12. Plant material requirements for bioretention
facilities shall be in accordance with the City's bioretention
plant list.
(Ord. 2251 §62, 2009, Ord. 1872 §14 (part), 1999)
18.52.035 Interior Parking Lot Landscaping
Requirements
Landscaping within parking areas shall be provided as
shown below.
1. Requirements for each distinctly separate
parking area within the LDR zone for uses other than dwelling
units, and in the MDR and HDR zones:
a. For areas with up to 20 parking stalls per
parking area, no interior landscaping is required.
b. For areas with 21 - 40 parking stalls per
parking area, 7 square feet of interior landscape area is
required for each parking stall.
c. For areas with more than 40 parking stalls
per parking area, 12 square feet of interior landscape area is
required for each parking stall (see Multi - Family Design
Guidelines, Site Planning Section, No. 31, for the normal 15
square feet to be provided).
d. All parking areas shall have a perimeter
landscape strip a minimum of 2 feet wide with an average
width of 5 feet.
2. Requirements for parking lots within the 0,
MUO, RCC, and NCC zones:
a. For lots with up to 20 parking stalls, no
interior landscaping is required.
b. For lots with 21 - 40 parking stalls, a
minimum of 10 square feet of interior landscape area is
required for each parking stall over 20.
c. For lots with more than 40 parking stalls, a
minimum of 200 square feet of interior landscape area plus 15
square feet for each parking stall over 40 is required. For
areas placed behind buildings or otherwise screened from
streets, parks and City trails the interior landscape
requirement is reduced to a minimum of 200 square feet plus
10 square feet for each parking stall over 40.
3. Requirements for parking lots within the RC,
RCM, C /LI, TSO and TVS zones:
a. For areas adjacent to public or private
streets, a minimum of 15 square feet of landscaping is
required for each parking stall.
b. For areas placed behind buildings or
otherwise screened from streets, parks and City trails a
minimum of 10 square feet of interior landscape area is
required for each parking stall.
4. Planting Standards:
a. Interior landscape islands shall be distributed
to break up expanses of paving. Landscaped areas shall be
placed at the ends of each interior row in the parking area,
with no stall more than 10 stalls or 100 feet from a landscape
area. Landscaped areas and planting islands may contain
bioretention.
b. The minimum size for interior parking lot
planting islands is 100 square feet.
c. Planting islands shall be a minimum of 6 feet
in any direction and generally the length of the adjacent
parking space.
d. Raised curbs or curb stops shall be used
around the landscape islands to prevent plant material from
being struck by automobiles. Where bioretention is used, curb
cuts shall be placed to allow stormwater runoff from adjacent
pavements to enter the bioretention system.
e. A minimum of 1 evergreen or deciduous tree
is required per landscape island, with the remaining area to
contain a combination of shrubs, living groundcover and
mulch.
(Ord. 24.42 , 2014, Ord. 2251 63, 2009, Ord. 2235 § 14, 2009y
Ord. 1872 § t (part), 1999)
18.52.050 Landscape Plan Requirements
A. A Washington State licensed landscape architect
shall prepare and stamp the landscape plans in accordance
with the standards herein. Detailed plans for landscaping and
screening shall be submitted with plans for building and site
improvements. Included in the plans shall be type, quantity,
spacing and location of plants and materials, site preparation
and specifications for soils and mulches, location of all
overhead and underground utilities (so as to avoid conflicts
with proposed planting locations), typical planting details and
the location of irrigation systems.
B. Installation of the landscaping and screening shall be
completed and a Landscaping Declaration submitted by the
owner or owner's agent prior to issuance of the certificate of
occupancy. If necessary, due to weather conditions or
construction scheduling, the installation may be postponed to
the next planting season if approved by the Community
Development Director and stated on the building permit. A
performance assurance device equal to 150% of the cost of
the labor and materials must be provided to the City before the
deferral is approved. The property owner shall keep all
planting areas free of weeds and trash and replace any
unhealthy or dead plant materials for the life of the project in
conformance with the intent of the approved landscape plan
and TMC Section 8.28.180. Any landscaping required by this
chapter shall be retained and maintained for the life of the
project. Additionally, topping or removal of required trees is
prohibited. Only trees that pose a danger or are diseased, as
determined by an ISA certified arborist, shall be allowed to be
removed. Any illegal removal of required trees shall be
subject to obtaining a tree permit and replacement with trees
that meet or exceed the functional value of the removed trees.
C. Landscape Plans that include a bioretention facility
shall be submitted to the Public Works Director in addition to
the Community Development Director.
��a
(Ord. 2368 53, 2012, Ord. 2251 65, 2009y HAPTER 1
Ord. t%t § t, 200 1,� Ord. 1872 § t (part), t)
OFF-STREET PARKING N D
LOADING REGULATIONS
18.56.040 General Requirements
Any required off - street parking and loading facilities shall
be developed in accordance with the following standards:
1. Location. Any on- premises parking area which
contains parking stalls located more than 1,000 feet from the
principal use shall require Board of Architectural Review
approval for the entire parking lot.
2. MINIMUM PARKING. Minimum parking area
dimensions for surface and structured parking facilities shall
be as provided in Figure 18 -6. Standard and compact parking
stalls shall be allowed a two -foot landscaping overhang to
count towards the stall length.
3. TANDEM PARKING SPACES. In the MDR and
HDR zones, tandem spaces (where one car is parked directly
behind another) will be allowed for each three bedroom and
1/3 of all two bedroom units. No more than 1/3 of all project
parking spaces may be tandem and all tandem parking
spaces will be designed for full size rather than compact size
vehicles based on the dimensions in Figure 18 -6.
4. PARKING AREA AND PARKING AREA
ENTRANCE AND EXIT SLOPES. The slope of off - street
parking spaces shall not exceed 5 %. The slope of entrance
and exit driveways providing access for off - street parking
areas and internal driveway aisles without parking stalls shall
not exceed 15 %.
5. DRIVEWAYS AND MANEUVERABILITY.
a. Adequate ingress to and egress from each
parking space shall be provided without moving another
vehicle and without backing more than 50 feet.
b. Turning and maneuvering space shall be
located entirely on private property unless specifically
approved by the Public Works Director and the Board of
Architectural Review.
c. All parking spaces shall be internally
accessible to one another without reentering adjoining public
streets.
d. When off - street parking is provided in the
rear of a building and a driveway or lane alongside the
building provides access to rear parking area, such driveway
shall require a minimum width of twelve feet and a sidewalk of
at least a three -foot section, adjoining the building, curbed or
raised six inches above the driveway surface.
e. Ingress and egress to any off - street parking
lot shall not be located closer than 20 feet from point of
tangent to an intersection.
f. The Public Works Director or the Community
Development Director may require ingress separate from an
egress for smoother and safer flow of traffic.
6. The Director may require areas not designed or
approved for parking to be appropriately marked and /or signed
to prevent parking.
7. SURFACE. 33
a. The surface of any required off - street parking
or loading facility shall be paved with asphalt, concrete or
other similar approved material (s) and shall be graded and
drained as to dispose of all surface water, but not across
sidewalks.
b. All traffic- control devices, such as parking
stripes designating car stalls, directional arrows or signs, bull
rails, curbs and other developments shall be installed and
completed as shown on the approved plans.
c. Paved parking areas shall use paint or similar
devices to delineate car stalls and direction of traffic.
d. Where pedestrian walks are used in parking
lots for the use of foot traffic only, they shall be curbed or
raised six inches above the lot surface.
e. Wheel stops shall be required on the
periphery of parking lots so cars will not protrude into the
public right -of -way, walkways, off the parking lot or strike
buildings. Wheel stops shall be two feet from the end of the
stall of head -in parking.
f. The use of permeable pavement is the
preferred material for parking surfaces, and any parking stalls
provided in excess of the required minimum required off - street
parking spaces shall use permeable pavement where
technically feasible in accordance with the Surface Water
Design Manual, adopted in accordance with TMC Chapter
14.30.
8. PARALLEL PARKING STALLS. Parallel parking
stalls shall be designed so that doors of vehicles do not open
onto the public right -of -way.
9. OBSTRUCTIONS. No obstruction which would
restrict car door opening shall be permitted within five feet of
the centerline of a parking space.
10. LIGHTING. Any lighting on a parking lot shall
illuminate only the parking lot, designed to avoid undue glare
or reflection on adjoining premises.
11. CURB -CUTS. All parking areas shall have
specific entrance and /or exit areas to the street. The width of
access roads and curb -cuts shall be determined by the Public
Works Director. The edge of the curb -cut or access road shall
be as required by the Public Works Director for safe
movement of vehicles or pedestrians. Curb -cuts in single -
family districts shall be limited to a maximum of 20 feet in
width and the location shall be approved by the Public Works
Director.
12. PARKING STALL. Parking stalls shall not be
used for permanent or semi - permanent parking or storage of
trucks or materials.
(Ord. 2368 54, 2012, Ord. 2251 66, 2009y
Ord. 1795 §3 (part), t %� Ord. 1758 § t (part), 1995)
34
Off-Street Parking Area Dimensions
TMC 18.56.040
A
B
C
D
E
F
Parking
Angle
Stall
Width
Stall
Depth
Aisle Width
Curb
Length
Unit Width
1-"a traffic
2-way traffic
1 -way traffic
2-way traffic
00
8*
8*
12
20
20*
28*
36*
10
3-T-
300
8*
8.5
9
15*
17
17.5
11
11
11
20
20
20
16*
17
18
41
45
46
54*
54
55
\ v
Curb Length (E)
450
8*
8.5
9
17*
19.5
20
nn
12,5
115
12
A n
20
20
20
I)f'%
11.5*
12
12.7
411 A
46.5*
51.5
52
54*
59
60
9,5
LV
I L
4v
to"
60
600
8*
8.5
9
18*
21
21
21
17.5*
17.5
17
20
20
20
9,2*
9.8
10.4
53.5
59.5
59
56*
62
62
9,5
Ij,j
f-V
58.5
901,
8*
8.5
9
16*
19
19
24
24
23
25
25
24
—1
8*
8.5
9
56*
62
61
57*
63
62
*These figures are for use with compact cars only. Any bays that contain
combined compact and normal spaces shall be designed for normal spaces,
Curb I
Length (E) stall width
or depth
B orC
t )
Aisle or Street
stall
Parking Mill 0
Angle
(8)
,
Angled Parking
Unit
Width
(F)
i
Parallel Parking
Figure 18-6
Off-Street Parking
Area Dimensions
stall
/00'9
Aisle (D)
10
ste11 Depth
0,
Perpendicular
to Aisle (C)
\ v
Curb Length (E)
Angled Parking
Unit
Width
(F)
i
Parallel Parking
Figure 18-6
Off-Street Parking
Area Dimensions
Table 18 -3 District Standards:
18.28.070 Structure Heiaht 1
Minimum Height
Maximum Height without Incentives
Frontal Improvement Height Incentive
Multi - Family Height Incentive
18.28.080 Maximum Block Face Length
25 ft fronting
Baker BI.
85 ft
115 ft, or214ft
w /in 300 ft of
Tukwila Pkwy
& Southcenter
Pkwy
115 ft, or214ft
w /in 300 ft of
Tukwila Pkwy
& Southcenter
Pkwy
115 ft, or 214 ft
w /in 300 ft of
Tukwila Pkwv
rKwy
25 ft fronting
Baker BI.
45 ft
70 ft, 115' if
combined with MF,
LEED, Structured
Parking or
Affordable
Housing Incentive
70 ft, 115' if
combined with
Frontal Imp.,
LEED, Structured
Parking or
Affordable
Housina Incentive
70 ft, 11 5' if
combined with
Frontal Imp., MF,
LEED or
Affordable Housing
Incentive
n/a n/a
45ft
45 ft
70 ft, no increase
w /in
150 ft of Pond n/a
edge
70 ft, no increase
w /in
150 ft of Pond
edge
70 ft, no increase
w /in
150 ft of Pond
edqe
n/a
n/a
45 ft
n/a
70 ft
River adjacent
parcels only
Provision of New Streets
Regional
I
I
700 ft
Corridor
900 ft max .
District Standards
Center
TOD
Pond District
Comm.
Workplace
18.28.070 Structure Heiaht 1
Minimum Height
Maximum Height without Incentives
Frontal Improvement Height Incentive
Multi - Family Height Incentive
18.28.080 Maximum Block Face Length
25 ft fronting
Baker BI.
85 ft
115 ft, or214ft
w /in 300 ft of
Tukwila Pkwy
& Southcenter
Pkwy
115 ft, or214ft
w /in 300 ft of
Tukwila Pkwy
& Southcenter
Pkwy
115 ft, or 214 ft
w /in 300 ft of
Tukwila Pkwv
rKwy
25 ft fronting
Baker BI.
45 ft
70 ft, 115' if
combined with MF,
LEED, Structured
Parking or
Affordable
Housing Incentive
70 ft, 115' if
combined with
Frontal Imp.,
LEED, Structured
Parking or
Affordable
Housina Incentive
70 ft, 11 5' if
combined with
Frontal Imp., MF,
LEED or
Affordable Housing
Incentive
n/a n/a
45ft
45 ft
70 ft, no increase
w /in
150 ft of Pond n/a
edge
70 ft, no increase
w /in
150 ft of Pond
edge
70 ft, no increase
w /in
150 ft of Pond
edqe
n/a
n/a
45 ft
n/a
70 ft
River adjacent
parcels only
Provision of New Streets
850 ft max2
., 700 ft max
700 ft
- 900 ft max
900 ft max .
18.28.090 Permitted Corridor Types for New Streets
Pedestrian Corridor
permitted
permitted
........
Walkable Corridor
permitted
permitted
Neighborhood Corridor
permitted
I permitted
permitted
permitted3
Urban Corridor
permitted
1 permitted
permitted
Commercial Corridor
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
permitted
permitted
Workplace Corridor
1 permitted
permitted
Tukwila Pond Esplanade
permitted
Pedestrian Walkway
permitted
18.28.100 Side and Rear Setbacks
Side and Rear Yards
5 ft 4
( 5 ft 4
5 ft 4
5 ft
5 ft
18.28.110 Side and Rear Landscaping Requirements
Side and Rear Yards 5 ft 4 5 ft 4 5 ft 4 o ft O ft
18.28.220 Special Corner Feature
Special Corner Feature on Building permitted permitted permitted
1) Portions of the building that extend above the primary building mass, such as non - habitable space (clock towers, roof -top cupolas, elevator
and mechanical equipment enclosures), unenclosed space (roof deck trellises, gazebos), and other special architectural features, shall not
exceed the maximum height requirement by more than 20 feet, provided they are setback a minimum of 10 feet from the edge of the roof
(see also TMC 18.50.080).
2) Does not apply to Freeway Frontage Corridors
3) Permitted adjacent to residential uses.
4) May be waived as part of design review if Building and Fire Code requirements are met.
[till
TO:
FROM:
BY:
CC:
DATE:
C 0
ity of Tukwila Allan Ekberg, Mayor
Public Works Department - Bob Giberson, Director
Utilities Committee
Bob Giberson, Public Works Director A9
Mike Cusick and Peter Lau, Senior Program Managers
Mayor Ekberg
September 9, 2016
SUBJECT: Andover Park East Water and Sewer Replacement Proiect
Project No. 99940103 (and 91440204), Contract No. 15-116
PACE Engineers Supplemental Agreement No. 1
ISSUE
Approve Supplemental Agreement No. 1 with PACE Engineers Inc. (PACE).
BACKGROUND
PACE is the design consultant for the Andover Park East Water and Sewer Replacement Project with
Contract No. 15-116. On August 1, 2016 Council approved the construction contract with Titan
Earthworks. Supplemental Agreement No. 1 with PACE will provide design and construction support to
the City during construction.
DISCUSSION
PACE incurred additional costs for surveying and design of ADA sidewalk ramps, replacement of catch
basins and manhole covers, and developing a detour plan to keep local businesses in operation during
the different stages of construction. Supplemental Agreement No. 1 also includes on-call construction
management services to the City during construction to allow PACE to attend meetings, review
submittals, and answer technical questions from the City and the contractor. A time extension to
December 31, 2017 is also included in Supplemental Agreement No.l.
FINANCIAL IMPACT
The Proposed 2017 budget for construction management is $640,000 for the Andover Park East Water
and Sewer Replacement Project. AECOM was hired as the main construction management firm for
$532,893.84, leaving the remaining budget of $107,106.16 for PACE's Supplemental Agreement No. 1.
Remaining
CM Expenses CM Budget
PACE Construction Management $30,128.76
PACE Additional Design Services 24,967.56 $107,106.16
Supplement No.1 Total $_55,Q96.32 $107106.16
RECOMMENDATION
Council is being asked to approve Supplemental Agreement No. 1 to Contract No. 15-116 with PACE
Engineers, Inc. in the amount of $55,096.32 for the Andover Park East Water and Sewer Replacement
Project and consider this item at the September 26, 2016 Committee of the Whole Meeting and
subsequent October 3, 2016 Regular Meeting.
Attachments: Proposed 2017 CIP Sheets
PACE Supplemental Agreement No. I
W:\PW Eng\PROJECTS\A- WT Projects\APE Water Main Replacement (99940103)\Info Memo PACE Supp #1 09-09-16 gi sb.docx
Kul
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2017 to 2022
PROJECT: Andover Park E Water Main Replacement Project No. 99940103
DESCRIPTION: Design and construct 2,700 LF of new 8" & 16" ductile iron pipe along Andover Park East from Tukwila Pkwy
to Strander Blvd.
JUSTIFICATION: Support future growth within this area of the CBD as aging cast iron system has suffered frequent failures.
STATUS: Survey and design is complete. Construction is scheduled for 2016 from Strander Blvd to Tukwila Pkwy
with final paving in 2017.
MAINT. IMPACT: A new pipe will significantly reduce impact on crews from the risk of cataclysmic events.
COMMENT: PWTF loans were rescinded in 2014 & 2015 by the State Legislature.
FINANCIAL Through Estimated
tin S000'sl 2015 2016 2017 2018 2019 2020 2021 2022 BEYOND TOTAL
EXPENSES
Design
140
59
199
Land (R/W)
0
Const. Mgmt.
284
100
384
Construction
2,100
685
2,785
TOTAL EXPENSES
140
2,443
785
0
0
0
0
0
0
3,368
FUND SOURCES
Awarded Grant
0
Proposed Bond
0
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
140
2,443
785
0
0
0
0
0
0
3,368
TOTAL SOURCES
140
2,443
785
0
0
0
01
01
0
1 3,368
38
2017 - 2022 Capital Improvement Program 60
h0w IF,
38
2017 - 2022 Capital Improvement Program 60
CITY OFT0KWILA CAPITAL PROJECT SUMMARY
2017 to 2022
PROJECT: Andover Park East Sewer Replacement Project No. S1440204
DESCRIPTION: Design and construct 1,600 LF of 15" and 12" sanitary sewer from Strander Blvd. to 1-405 in Andover Park E.
JUSTIFICATION: Sewer improvement will provide additional capacity for future development along Andover Park East.
STATUS: Project will overlay Andover Park East from EKnander Blvd 1o|-4O5in2O17.
YN/UNT.|K0PACT:
ConokucUon� scheduled for 2O1O[mmG�onderB�dtoTuk�|uPa�woy M�gadon�fmmVVaohin�on
��K8K0�N�'
' Place for the increased sewer capacity needed for the size of the development.
FINANCIAL Through Estimated
EXPENSES
Design
47
43
90
Const. Mgmt.
206
50
256
Construction
1,626
500
2,126
TOTAL EXPENSES
471
1,875
1 550
1 01
01
01
01
01
01
2,472
FUND SOURCES
Awarded Grant
0
Mitigation Actual
0
Mitigation Expected
290
290
39
2n1r-zos2 Capital Improvement Program 77
SUPPLEMENTAL AGREEMENT NUMBER I
to
CONSULTANT AGREEMENT NUMBER 15-116
THIS SUPPLEMENTAL AGREEMENT is entered into between the City of Tukwila,
Washington, herein-after referred to as "the City", and PACE Engineers, Inc hereinafter referred
to as "the Consultant", in consideration of the mutual benefits, terms, and conditions hereinafter
specified.
The City desires to supplement the agreement entered into with the Consultant and executed on,
June 18, 2015 and identified as Agreement No. 15-116. All provisions in the basic agreement
remain in effect except as expressly modified by this supplement.
The changes to the agreement are described as follows:
Scope of Services, for Supplemental Agreement #1 Andover Part East Water and Sewer Replacement
project for the City of Tukwila. The purpose of this supplement is to add:
1. Engineering Design Services
• Design 8 ADA ramps so that they bought up to current code requirements.
• Design for the replacement of 1960 and 1970 storm drain structures that are at end of
their design life and do not meet current City of Tukwila Infrastructure Standards.
• Survey and evaluate the existing asphalt pavement section in Andover Park East for the
replacement of the asphalt pavement after the installation of the proposed water and
sewer improvements.
• Develop a new channelization and striping plan.
• Develop a detour plan for the installation water and sewer lines that provides access to
the business in the construction
2. Construction Administration Services
• Attend the pre-construction conference.
• Review up to 10 material submittals for compliance with contract documents.
• Review and address up to 10 RFI's.
• Review up to 3 contract pay estimates as requested. We assume the City will prepare
the estimates.
• Review up to 5 change orders and prepare documents as necessary. Attend
construction meetings as requested by the City. The City will provide meeting agendas
and minutes.
• Provide up to 52 hours to assist the City as requested throughout construction.
• Prepare Record Drawings. The contractor's and City's redlines will be incorporate into
the design drawings to create Auto Cad Record Drawings.
E, to]
3. Payment, shall be amended as follows: Payment for the work provided by the Consultant as part
of this supplement shall be made for an additional $55,096.32 the total amount for the Consultant
for this contact shall not exceed $414,954.32 without express written modification of the
Agreement signed by the City
4. Time for Performance, is amended to change the number of calendar days for completion of the
work to read 930 days. The completion date will now be December 31, 2017.
DATED this -- day of , 2016.
CITY OF TUKWILA
Allan Ekberg, Mayor
I—
U
By:
Prii
E151
PACE Engineers, Inc.
Project Name
Attachment A
Project Name APE Construction Admin. Assistance
Project #: Proj Number
15412
BG
50
Project Budget Worksheet - 2016 Standard Rates
Location: (Project
ocation
City of Tukwila
Task #:
00
Prepared By:
Date:
Staff Type # (See Labor Rates Table)
Staff Type Hourly Rate
Drawing/rask Title
Pre- Construction ;M
Submittal Review
Address RFC's
Pay Requests
Change Orders
Construction Meet4
General Assistance
Prepare Record Drawl
Hours Total
Labor Total
Expenses
Labor Hours by Classification
DH
25- Jul -16
Labor
Code
Job
Title
1
$204
Senior
Senior Principal
Engineer
4
6
25
2
10 12
$192 _._.m,.M $169
Principal
Engineer
30
20
15
25
2
Project
Manager
10
70
$148
•GIS /CAD
Manager
2
74
20
Hour
Total
4.0
10.0
30.0
6.0
20.0
15.0
50.0
26.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0,0
37.0
$7,548
92.0
$17,664
10.0
$1,690
2.0
$296
20.0
$2,340
0.0
$0
0.0
$0
0.0
$0
0.0
$0
0.0
$0
0.0
$0
Postage/Courie
Plotter
PhotoNidr
Mileage/Trave
Miscellaneous
Technology Fee (2%
rate /unit
Reimbursable
Quantity Cost
Total
$590.76
File: CA Budget, Fee Worksheet
5T.'. 7t
Subconsultants
Uti
}echantcat °Engineei
Electrical Engineer
Geotechnicat Engineer
& C Engineer
iubconsultant Sub'
arkup
PACE Billed Labor Total
Reimbursable Expenses
Subconsultants
Total Project Budge
Total
Page l of 1
Rate Table Used: 2016 Standard Rates
Printed: 712512016,10:56 AM
TO:
FROM
CC:
DATE:
City of Tukwila Allan Ekberg, Mayor
Public Works Department -Bob Giberson, Director
Utilities Committee
BobGibermmn, Public Works [3ireptpr~^Ts�
Peter Lau, Senior Program Manager
Mayor Ekberg
September 9,2O1G
SUBJECT:
Project No. 91140203, Contract No. 16-038
Project Completion and Acceptance
ISSUE
Accept construction contract ao complete and authorize release ofretanage.
BACKGROUND
Resolution No. 1878 was approved by the Council on March 21, 2016 that declared an emergency to repair
a sanitary sewer main in the 1200 block of Andover Park East. The Notice to Proceed for Contract Number
16-038 with R. L. Alia Company of Renton, Washington was issued on March 28, 2016. This Emergency
Sewer Repair Project pn]vidSdvoudvvayexoavsdionandoewerpipenap|8o8men[dU8[OSev8r8detghondion.
DISCUSSION
Construction was physically completed on May 11, 2016. There were two change orders executed for this
project, one for a contract time extension and the second expanded the scope of the work.
FINANCIAL IMPACT
The construction budget for this Emergency Sewer Repair Project vvas $SOU.0OO.OU. Unit price over-runs were
due to the expanded scope of sewer main replacement from the estimated 65 feet to the actual replacement of
166 feet. Retainage is being held by the City for this project in the amount of $7,701.82.
Expenses
Construction Contract Amount (pre'tax) $ 80.925.00
Unit Price Over-runs 67'111.31
WA State Sales Tax
Total Contract Amount $168,669.7
RECOMMENDATION
Council is being asked to formally accept the C0O Sanitary Sewer Rehabilitation Emergency Sewer
Repair at 1200 Andover Park East contract with R. L. Alia Company in the final amount of $168,669.76 as
complete and authorize the release of retainage, subject to standard claim and lien release procedures, and
to consider this item onthe Consent Agenda 81 the September 1S,2O1G Regular Council Meeting.
Attachment: Notice of Completion, Contract #10-03
WAPW Eng\PROJECTS\A- SW Projects\CBD Sewer Rehabilitation (91,^m03)\2mv SEWER REPAIR 2oOSTCoomnwect`olos~ouhInfo Memo For 16-038 Close Out, mwoam°cx
43
ITAT,,,
❑ Original
Revised#
NOTICE OF COMPLETION OF PUBLIC WORKS CONTRACT
Date: August 4, 2016 Contractor's UBI Number: 600149378
Name & Mailing Address of Public Agency Department Use Only
City of Tukwila- Assigned to:
6200 Southcenter Boulevard
Tukwila, WA 98188 Date Assigned:
UBI Number: 179000208
Notice is hereliv ziven relative to the COMDletion of contract or proiect diva -rihod hatnio
Project Name
—116-038
I
Contract Number v
Job" "Order Contracting
CBD Sewer Rehab - Emergency Sewer Repair at 1200 APE
Amount Retained $
El Yes [Y' No
Description of Work Done/include Jobsite Address(es)
On Andover Park East adjacent to Costco Drive, the Contractor excavated and replaced broken sewer
pipes. Then, the excavated road section was restored.
-4
Federally funded transportation project? ❑ Yes LYJ No (if yes, provide Contract Bond Statement below)
Contractor's ?V,,—ime E-mail Address Affidavit —ID*
R. L. Alia Company lgjpank@rlalia.com I
Contractor Address
Telephone #
107 Williams Avenue South, Renton, WA 98057
1425-226-8100
If Retainage is not withheld, please select one of the following and List Surety's Name & Bond Number.
❑ Retainage Bond ❑ Contract/Payment bond (valid for federally funded transportation projects)
Name:
Bond Number:
Date Contract Awarded
Date Work Commenced
[Date Work Completed
Date Work Accepted
March 16, 2016 -
I March 28, 2016
IJune 2, 2016
1
Were Subcontracters used on this project? If so, please complete Addendum A. Wyes ❑ No
I Affidavit ID* - No L&I release will be granted until all affidavits are listed.
k-ontract Amount
Additions +
Reductions
Sub-Total
Amount of Sales Tax 9.5
(If various rates apply, please send a breakdown)
Comments:
$ 86,925.00
$ 67,111.31
$ 0.00
$ - 154,036.31
$ 14633.45
TOTAL $ 168,669.76
1 vu-1 r-., i nese two touns must ve
Liquidated Damages $
0.00
Amount Disbursed $
160.967.94
Amount Retained $
7,701.82
TOTAL $ 168,669.76
Note: The Disbursing Officer must submit this completed notice immediately after acceptance of the work done under this contract.
NO PAYMENT SllAl.E BE MADE FROM RETAINED FUNDS until receipt of all release certificates.
Submitting Form: Please submit the completed form by email to all three agencies below.
k-ontactiName: Diane Jaber
Email Address: diane.jaber@tukwilawa.gov
Department of Revenue Washington State Depamrent of
Public Works 50 Section
(360) 704-56 45 Labor & Industries
-
Cont ct Release
PWC@dor.wa.gov (855) 545-8163, option # 4
ContractRelease@LNI.WA. GOV
REV 31 0020e (4/28/14) F215-038-000 04-2014
Title: Fiscal Specialist
Phone Number: (206) 433-1871 X 1871
Employment Security
Department
Registration, Inquiry,
Standards & Coordination
Unit
(360) 902-9450
publicworks@esd.wa.gov
44
Addendum A: Please List all Subcontractors and Sub -tiers Below
This addendum can be submitted in other formats.
Provide known affidavits at this time. No L, &I release will be eranted until all affidavits are listed
Subcontractor's Name:
UBI Number: (Required)
Affidavid ID*
Northwest Traffic, Inc.
602140049
651516
Everson's Econo Vac, Inc.
601443326
642674
Hot Mix Pavers, Inc.
600310693
646088
West Coast Signal, Inc.
603149602
640095
MT Electric, LLC
603428049
651513
For tax assistance or to request this document in an alternate format, please call 1- 800 - 647 -7706. Teletype (TTY) users may use the
Washington Relay Service by calling 711.
REV 31 0020e Addendum (04/28114) F215- 038 -000 04 -2014
C1.1
T{]:
FROM
CC:
DATE:
0 of Tukwila
Public Works Department -Bob Giberson, Director
Utilities Committee
BobGiberaVn, Public Works Director'~��~�'
Peter Lau, Senior Program Manager
Mayor Ekberg
September 9,201G
SUBJECT:
Project No. 91140203, Contract No. 16-039
Project Completion and Acceptance
ISSUE
Accept construction contract aecomplete and authorize release ofretainage.
BACKGROUND
The Notice tu Proceed for Contract Number 18'039 with R.LA|ia Company of Renton, Washington was
issued on March 28,2010. This sewer repair project pnovdedegvv8rpip8rep|8cennerdad1227Andover
Park East as the pipe could not be relined due to the severe deterioration.
DISCUSSION
Construction was physically completed on May 11, 2016. There were two change orders executed that
addressed a contract time extension and the expanded scope of the sewer main replacement.
FINANCIAL IMPACT
The construction budget for this Sewer Replacement Project vvao$13S,7q6O.88.UnitpricgOvepnJnSvv8nB
due tothe expanded scope of sewer main replacement from the estimated 65 feet to the final replacement
amount Of141feet. Council was asked tD increase the budget for this project bv$33,UOO8ttheJu|y5,
2016 Regular Meeting. R8t8in8geiS being held by the City for this project inthearnountof$4.S88.93.
Expenses
Construction Contract Amount (ore-tax ) $63.669.00
Unit Price Over-runs 36.069.52
VVA State Sales Tax 9�75.16
Total Contract Amount
RECOMMENDATION
Council is being asked to formally accept the CBD Sanitary Sewer Rehabilitation — Sewer Repair at1227
Andover Park East contract with H. L.A|i8 Company in the final amount of$1OS,213.S88S complete and
authorize the release of retainage, subject to standard claim and lien release procedures, and to consider
this item on the Consent Agenda at the September 19, 2016 Regular Council Meeting.
Attachment: Notice of Completion, Contract #16-039
W:\PW Eng\PROJECTS\A- SW Projects\CBD Sewer Rehabilitation (91,4020mmm" SEWER REPAIR eoOSrmomproj=woos~ouhInfo Memo For `*03o Close Out, mp6mo=,
EHw
Original
❑ Revised#
I R9
NOTICE OF COMPLETION OF PUBLIC WORKS CONTRACT
Date: August 4,2016 Contractor's UBI Number: 600149378
Name & Mailing Address of Public Agency Department Use Only
(7it—yof Tukwila Assigned to:
6200 Southcenter Boulevard
Tukwila, WA 98188 Date Assigned:
UBI Number: 179000208
Notice is hereby given relative to the completion of contract or project described below
Project Name
Contract Number 1!
F16
Job Order Contracting
CBD Sanitary Sewer Rehab - Sewer Repair at 1227 APE
039
❑ Yes YJ No
Description of Work Done/Include Jobsite Address(es)
On Andover Park East adjacent to Costco Drive, the Contractor excavated and replaced broken sewer
pipes. Then, the excavated road section was restored.
Federally funded transportation project? ❑ Yes S6 No (if yes, provide Contract Bond Statement below)
Contractor's Name
E-mail Address
Affidavit ID*
R. L. Alia Company
lgjpank@rlalia.com
1650811
Contractor Address
Telephone #
107 Williams Avenue South, Renton, WA 98057
425-226-8100
If Retainage is not withheld, please select one of the following and List Surety's Name & Bond Number.
❑ Retainage Bond ❑ Contract/Payment bond (valid for federally funded transportation projects)
Name:
I Bond Number:
Date Contract Awarded
Date Work Commenced
Date Work Completed
Date Work Accepted
March 21, 2016
1 March 28, 2016
1 May 11, 2016
1
Were Subcontracters used on this project? If so, please complete Addendum A. W-Yes -1 No
Affidavit ID* - No Ut release will be granted until all affidavits are listed.
Contract Amount
Additions +
Reductions
Sub-Total
Amount of Sales Tax 9.5
(If various rates apply, please send a breakdown)
$ 63,669.00
$ 36,069.52
$ 0.00
$ 99,738.52
9475.16
TOTAL $ 109,21168
ivu i P-: i nese two totats must De
Liquidated Damages $ 0.00
Amount Disbursed $ 104,226.75
Amount Retained $ 4,986.93
TOTAL $ 109,213.68
�Note: The Disbursing Officer must submit this completed notice immediately after acceptance of the work done under this contract.
NO PAYMENT SHALL BE MADE FROM RETAINED FUNDS until receipt of all release certificates.
Submitting Form: Please submit the completed form by email to all three agencies below. I
Contact Name: Diane Jaber
Email Address: diane.jaber@tukwilawa.gov
#-9001 Department of Revenue AdIlk, Washington State Deparonent of
lugPublic Works Section Labor & Industries
(360) 704-5650 Contract Release
PWC@dor.wa.gov (855) 545-8163, option # 4
ContractRel ease@LNI. WA. GOV
REV 31 0020e (4/28/14) F215-038-000 04-2014
Title: Fiscal Specialist
Phone Number: (206) 433-1871 X 1871
Employment Security
Department
Registration, Inquiry,
Standards & Coordination
Unit
(360) 902-9450
publicworks@esd.wa,gov
48
Addendum -A: ' Please List all Subcontractors and Sub -tiers Below
This addendum can be submitted in other formats.
Provide known affidavits at this time. No L &I release will be granted until all affidavits are listed.
Subcontractor's Name: UBI Number: (Required) Affidavid IDx
Hot Mix Pavers, Inc. 600310693 646091
Everson's Econo Vac, Inc. 601443326 642672
Northwest Traffic, Inc. 602140049 656213
For tax assistance or to request this document in an alternate format, please call 1- 800 - 647 -7706. Teletype (TTY) users may use the
Washington Relay Service by calling 711.
REV 31 0020e Addendum (04/28/14) F215 -038 -000 04 -2014 49