HomeMy WebLinkAboutTIS 2022-03-21 COMPLETE AGENDA PACKETCity of Tukwila
Transportation and
Infrastructure Services
Committee
.•.
•:•
Kate Kruller, Chair
Mohamed Abdi
❖ Tosh Sharp
AGENDA
Distribution:
K. Kruller
M. Abdi
C. Hougardy
T. Sharp
H. Ponnekanti
S. Kim (email)
G. Lerner (email)
City Attorney (email)
Clerk File Copy
Place pkt pdf on SharePoint:
Z Trans & Infra Agendas
email cover to: F. Ayala,
A. Le, C. O'Flaherty, A.
Youn, B. Saxton, S. Norris,
L. Humphrey
MONDAY, MARCH 21, 2022 — 5:30 PM
HYBRID MEETING — ONSITE AND VIRTUAL
DUWAMISH CONFERENCE ROOM, 6300 BUILDING, 2ND FLR
MS Teams: Click here to join the meeting
Virtual Meeting - Members of the public may listen by dialing 1-253-292-9750 and entering conference ID 96968911#
)
Next Scheduled Meeting: April 4, 2022
15. The City of Tukwila strives to accommodate individuals with disabilities.
Please contact the Public Works Department at 206-433-0179 for assistance.
Item
Recommended Action
Page
1.
PRESENTATIONS
2.
BUSINESS AGENDA
a) S 152nd Street Safe Routes to School Project
a)
Forward to 04/04/2022 Regular
Pg. 1
Consultant Selection and Agreement (C. Knighton)
Consent Agenda
b) Fleet & Facilities Public Works Shop - Equipment
b)
Forward to 03/21/2022 Regular New
Pg. 27
(C. Lee Gray)
Business
c) Neighborhood Traffic Calming Program - Allentown
Neighborhood Transportation Study (C. Knighton)
c)
Forward to 03/28/2022 Committee of
the Whole
Pg. 31
d) 42nd Ave S Bridge Replacement Project
Type, Size, and Location Report (A. Cox)
d)
Forward to 03/28/2022 Committee of
the Whole
Pg. 47
3.
MISCELLANEOUS
Future Agenda:
Next Scheduled Meeting: April 4, 2022
15. The City of Tukwila strives to accommodate individuals with disabilities.
Please contact the Public Works Department at 206-433-0179 for assistance.
City of Tukwila
AlLa n Ekberg, Mayor
PWWk Works Deportment - I -k ri PorMrrekanti, £ frectar/City Frigrrreer
INFORMATIONAL MEMORANDUM
TO: Transportation and Infrastructure Services Committee
FROM: Hari Ponnekanti, Public Works Director/City Engineer
BY: Cyndy Knighton, Senior Program Manager
CC: Mayor Ekberg
DATE: March 18, 2022
SUBJECT: S 152nd Street Safe Routes to School Project
Project Nos. 91710303 and 90341206
Consultant Selection and Agreement
ISSUE
Authorize the Mayor to execute a consultant agreement with KPG-Psomas to provide
preliminary engineering design services for the S 1 52nd Street Safe Routes to School (SRTS)
Project.
BACKGROUND
The S 152' Street SRTS project will design new curb, gutter, and sidewalks along the stretch of
road between Tukwila International Boulevard and 42nd Avenue S. Additionally, improvements
to the existing storm drainage system will be included to improve operation and water quality in
the Gilliam Creek basin. On -street parking, landscaping, amenities, and wayfinding may also be
included after reaching out to the neighborhood to solicit preferences.
ANALYSIS
The City issued a Request for Proposals for this project on October 5, 2021. Three proposals
were submitted by the deadline of October 26, 2021: KPG, OTAK, and Transpo Group. All three
firms were deemed highly qualified, and all were invited to interview.
After scoring the proposals and conducting interviews, staff selected KPG as the most qualified
firm. After negotiations, the attached Consultant Agreement was developed.
FINANCIAL IMPACT
The cost estimate provided by KPG for design is for $453,254.00. The contract will be funded in
part by a Sound Transit System Access Fund Grant, awarded to the City for design in 2020.
Remining costs are related to drainage system improvements and will be covered by the NW
Gilliam Basin Storm Drainage System CIP budget.
Cost Estimate Budget
Consultant Agreement $453,254
System Access Fund Grant $369,000
NW Gilliam Basin Storm Drainage System $100,000
Total $453,254 $469,000
RECOMMENDATION
The Council is being asked to approve the consultant agreement with KPG-Psoma in the
amount of $448,994.00 and consider this item on the Consent Agenda at the April 4, 2022
Regular Meeting.
ATTACHMENTS: Page 3, 2021 CIP
Page 93, 2021 CIP
Consultant Agreement
1
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2021 to 2026
PROJECT: S 152nd St Safe Routes to School Project No. 91710303
DESCRIPTION: Install curb, gutter, and sidewalks on both sides of S 152nd St, including widening pavement width by three
feet to construct an on -street parking lane as a buffer between the roadway and sidewalk on the north side.
JUSTIFICATION: Enhance safety for students walking to Foster High School, Showalter Middle School, and Thorndyke
Elementary School and encourage transportation choices for the neighborhood.
STATUS: Design funded, construction pending SRTS grant funding.
MAINT. IMPACT: New sidewalk and pavement will need to be maintained.
COMMENT: Sound Transit System Access Fund Grant of $369k for design. Apply for SRTS grant in 2021 for construction.
FINANCIAL Through Estimated
(in $000's)
2019 2020
2021
2022
2023
2024
2025
2026
BEYOND TOTAL
EXPENSES
Project Location
_ ;Fil
i*"
281
r
.''um
si
Design
369
..
1-
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'Iry
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369
Land (R/W)
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8t
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IL
475
7 i
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010
0
Const. Mgmt.
._ul
_ _0
y
400
�$. I m 1 PK'.W :t �G1S
400
Construction
2,200
2,200
TOTAL EXPENSES
0
0
369
2,600
0
0
0
0
0
2,969
FUND SOURCES
Awarded Grant
369
369
Proposed Grant
2,340
2,340
Solid Waste Utility Tax
0
Mitigation Expected
0
City Oper. Revenue
0
0
0
260
0
0
0
0
0
260
TOTAL SOURCES
0
0
369
2,600
0
0
0
0
0
2,969
2021 - 2026 Capital Improvement Program
3
2
Project Location
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2021 - 2026 Capital Improvement Program
3
2
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2021 to 2026
PROJECT: Northwest Gilliam Basin Storm Drainage System Project No. 90341206
DESCRIPTION: Upgrade existing storm drainage system. Provide water quality treatment manholes at the downstream
end of the retrofitted drainage systems. Provide asphalt overlay and extruded asphalt curb for all streets.
JUSTIFICATION: Reduces right-of-way and private property flooding by increasing the hydraulic capacity of the existing
storm drainage system. Water quality manholes remove sediment and oil from street runoff.
STATUS: S 146th St was completed in 2009 and S 150th in 2015 with Thorndyke Safe Routes to School.
Remaining streets include S 148th St and S 152nd St.
MAINT. IMPACT: Expected to decrease maintenance.
COMMENT:
Where feasible, combine with future water quality and overlay projects to reduce costs and construction
impact.
FINANCIAL Through Estimated
(in $000's)
2019 2020 2021
2022
2023
2024
2025
2026
BEYOND TOTAL
EXPENSES
,• . Project Location
`�
m,
s'
Nall
111101
Design
ml 4/ N
_
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100
MU
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100
Land (R/W)
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ii/ 6
0
Const. Mgmt.
40
Eh
40
Construction
7/1.11111PIN
v.
800
liqi c) i
'ivi - ..2 a
800
TOTAL EXPENSES
0
0
0
100
840
0
0
0
0
940
FUND SOURCES
Ttl it9 Pkwy,
S16(Y 9t 9
Awarded Grant
0
Proposed Grant
0
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
0
0
0
100
840
0
0
0
0
940
TOTAL SOURCES
0
0
0
100
840
0
0
0
0
940
2021 - 2026 Capital Improvement Program
93
3
,• . Project Location
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2021 - 2026 Capital Improvement Program
93
3
City of Tukwila
6200 Southcenter Boulevard, Tukwila WA 98188
Contract Number:
PROFESSIONAL SERVICES AGREEMENT
(Includes consultants, architects, engineers, accountants, and other professional services)
THIS AGREEMENT is entered into between the City of Tukwila, Washington, hereinafter
referred to as "the City", and KPG-Psomas, hereinafter referred to as "the Consultant", in consideration
of the mutual benefits, terms, and conditions hereinafter specified.
1. Project Designation. The Consultant is retained by the City to perform engineering design
services in connection with the project titled S 152nd Street Safe Routes to School.
2. Scope of Services. The Consultant agrees to perform the services, identified on Exhibit "A"
attached hereto, including the provision of all labor, materials, equipment and supplies.
3. Duration of Agreement; Time for Performance. This Agreement shall be in full force and
effect for a period commencing upon execution and ending December 31, 2023, unless sooner
terminated under the provisions hereinafter specified. Work under this Agreement shall
commence upon written notice by the City to the Consultant to proceed. The Consultant shall
perform all services and provide all work product required pursuant to this Agreement no later
than December 31, 2023 unless an extension of such time is granted in writing by the City.
4. Payment. The Consultant shall be paid by the City for completed work and for services
rendered under this Agreement as follows:
A. Payment for the work provided by the Consultant shall be made as provided on Exhibit
"B" attached hereto, provided that the total amount of payment to the Consultant shall not
exceed $453,254.00 without express written modification of the Agreement signed by the
City.
B. The Consultant may submit vouchers to the City once per month during the progress of
the work for partial payment for that portion of the project completed to date. Such
vouchers will be checked by the City and, upon approval thereof, payment shall be made
to the Consultant in the amount approved.
C. Final payment of any balance due the Consultant of the total contract price earned will be
made promptly upon its ascertainment and verification by the City after the completion of
the work under this Agreement and its acceptance by the City.
D. Payment as provided in this section shall be full compensation for work performed,
services rendered, and for all materials, supplies, equipment and incidentals necessary to
complete the work.
E. The Consultant's records and accounts pertaining to this Agreement are to be kept
available for inspection by representatives of the City and the state of Washington for a
period of three (3) years after final payments. Copies shall be made available upon
request.
4
5. Ownership and Use of Documents. All documents, drawings, specifications and other
materials produced by the Consultant in connection with the services rendered under this
Agreement shall be the property of the City whether the project for which they are made is
executed or not. The Consultant shall be permitted to retain copies, including reproducible
copies, of drawings and specifications for information, reference and use in connection with
the Consultant's endeavors. The Consultant shall not be responsible for any use of the said
documents, drawings, specifications or other materials by the City on any project other than
the project specified in this Agreement.
6. Compliance with Laws. The Consultant shall, in performing the services contemplated by
this Agreement, faithfully observe and comply with all federal, state, and local laws, ordinances
and regulations, applicable to the services rendered under this Agreement.
7. Indemnification. The Consultant shall defend, indemnify and hold the City, its officers,
officials, employees and volunteers harmless from any and all claims, injuries, damages,
losses or suits including attorney fees, arising out of or resulting from the acts, errors or
omissions of the Consultant in performance of this Agreement, except for injuries and damages
caused by the sole negligence of the City.
Should a court of competent jurisdiction determine that this Agreement is subject to RCW
4.24.115, then, in the event of liability for damages arising out of bodily injury to persons or
damages to property caused by or resulting from the concurrent negligence of the Consultant
and the City, its officers, officials, employees, and volunteers, the Consultant's liability
hereunder shall be only to the extent of the Consultant's negligence. It is further specifically
and expressly understood that the indemnification provided herein constitutes the Consultant's
waiver of immunity under Industrial Insurance, Title 51 RCW, solely for the purposes of this
indemnification. This waiver has been mutually negotiated by the parties. The provisions of
this section shall survive the expiration or termination of this Agreement.
8. Insurance. The Consultant shall procure and maintain for the duration of the Agreement,
insurance against claims for injuries to persons or damage to property which may arise from
or in connection with the performance of the work hereunder by the Consultant, its agents,
representatives, or employees. Consultant's maintenance of insurance as required by the
agreement shall not be construed to limit the liability of the Consultant to the coverage provided
by such insurance, or otherwise limit the City's recourse to any remedy available at law or in
equity.
A. Minimum Amounts and Scope of Insurance. Consultant shall obtain insurance of the
types and with the limits described below:
1. Automobile Liability insurance with a minimum combined single limit for bodily injury
and property damage of $1,000,000 per accident. Automobile Liability insurance
shall cover all owned, non -owned, hired and leased vehicles. Coverage shall be
written on Insurance Services Office (ISO) form CA 00 01 or a substitute form
providing equivalent liability coverage. If necessary, the policy shall be endorsed to
provide contractual liability coverage.
2. Commercial General Liability insurance with limits no less than $2,000,000 each
occurrence, $2,000,000 general aggregate. Commercial General Liability
insurance shall be at least as broad as ISO occurrence form CG 00 01 and shall
cover liability arising from premises, operations, stop -gap independent contractors
and personal injury and advertising injury. The City shall be named as an
additional insured under the Consultant's Commercial General Liability insurance
policy with respect to the work performed for the City using an additional insured
endorsement at least as broad as ISO endorsement form CG 20 26.
3. Workers' Compensation coverage as required by the Industrial Insurance laws of
the State of Washington.
CA revised May 2020
Page 2
5
4. Professional Liability with limits no less than $2,000,000 per claim and $2,000,000
policy aggregate limit. Professional Liability insurance shall be appropriate to the
Consultant's profession.
B. Public Entity Full Availability of Contractor Limits. If the Contractor maintains higher
insurance limits than the minimums shown above, the Public Entity shall be insured for the
full available limits of Commercial General and Excess or Umbrella liability maintained by
the Contractor, irrespective of whether such limits maintained by the Contractor are greater
than those required by this Contract or whether any certificate of insurance furnished to
the Public Entity evidences limits of liability lower than those maintained by the Contractor.
C. Other Insurance Provision. The Consultant's Automobile Liability and Commercial
General Liability insurance policies are to contain, or be endorsed to contain that they shall
be primary insurance with respect to the City. Any Insurance, self-insurance, or insurance
pool coverage maintained by the City shall be excess of the Consultant's insurance and
shall not be contributed or combined with it.
D. Acceptability of Insurers. Insurance is to be placed with insurers with a current A.M.
Best rating of not less than A:VII.
E. Verification of Coverage. Consultant shall furnish the City with original certificates and a
copy of the amendatory endorsements, including but not necessarily limited to the
additional insured endorsement, evidencing the insurance requirements of the Contractor
before commencement of the work. Upon request by the City, the Consultant shall furnish
certified copies of all required insurance policies, including endorsements, required in this
Agreement and evidence of all subcontractors' coverage.
F. Notice of Cancellation. The Consultant shall provide the City with written notice of any
policy cancellation, within two business days of their receipt of such notice.
G. Failure to Maintain Insurance. Failure on the part of the Consultant to maintain the
insurance as required shall constitute a material breach of contract, upon which the City
may, after giving five business days notice to the Consultant to correct the breach,
immediately terminate the contract or, at its discretion, procure or renew such insurance
and pay any and all premiums in connection therewith, with any sums so expended to be
repaid to the City on demand, or at the sole discretion of the City, offset against funds due
the Consultant from the City.
9. Independent Contractor. The Consultant and the City agree that the Consultant is an
independent contractor with respect to the services provided pursuant to this Agreement.
Nothing in this Agreement shall be considered to create the relationship of employer and
employee between the parties hereto. Neither the Consultant nor any employee of the
Consultant shall be entitled to any benefits accorded City employees by virtue of the services
provided under this Agreement. The City shall not be responsible for withholding or otherwise
deducting federal income tax or social security or for contributing to the state industrial
insurance program, otherwise assuming the duties of an employer with respect to the
Consultant, or any employee of the Consultant.
10. Covenant Against Contingent Fees. The Consultant warrants that he has not employed or
retained any company or person, other than a bonafide employee working solely for the
Consultant, to solicit or secure this contract, and that he has not paid or agreed to pay any
company or person, other than a bonafide employee working solely for the Consultant, any
fee, commission, percentage, brokerage fee, gifts, or any other consideration contingent upon
or resulting from the award or making of this contract. For breach or violation of this warrant,
the City shall have the right to annul this contract without liability, or in its discretion to deduct
from the contract price or consideration, or otherwise recover, the full amount of such fee,
commission, percentage, brokerage fee, gift, or contingent fee.
CA revised May 2020
Page 3
6
11. Discrimination Prohibited. Contractor, with regard to the work performed by it under this
Agreement, will not discriminate on the grounds of race, religion, creed, color, national origin,
age, veteran status, sex, sexual orientation, gender identity, marital status, political affiliation,
the presence of any disability, or any other protected class status under state or federal law,
in the selection and retention of employees or procurement of materials or supplies.
12. Assignment. The Consultant shall not sublet or assign any of the services covered by this
Agreement without the express written consent of the City.
13. Non -Waiver. Waiver by the City of any provision of this Agreement or any time limitation
provided for in this Agreement shall not constitute a waiver of any other provision.
14. Termination.
A. The City reserves the right to terminate this Agreement at any time by giving ten (10) days
written notice to the Consultant.
B. In the event of the death of a member, partner or officer of the Consultant, or any of its
supervisory personnel assigned to the project, the surviving members of the Consultant
hereby agree to complete the work under the terms of this Agreement, if requested to do
so by the City. This section shall not be a bar to renegotiations of this Agreement between
surviving members of the Consultant and the City, if the City so chooses.
15. Applicable Law; Venue; Attorney's Fees. This Agreement shall be subject to, and the
Consultant shall at all times comply with, all applicable federal, state and local laws,
regulations, and rules, including the provisions of the City of Tukwila Municipal Code and
ordinances of the City of Tukwila. In the event any suit, arbitration, or other proceeding is
instituted to enforce any term of this Agreement, the parties specifically understand and agree
that venue shall be properly laid in King County, Washington. The prevailing party in any such
action shall be entitled to its attorney's fees and costs of suit. Venue for any action arising
from or related to this Agreement shall be exclusively in King County Superior Court.
16. Severability and Survival. If any term, condition or provision of this Agreement is declared
void or unenforceable or limited in its application or effect, such event shall not affect any other
provisions hereof and all other provisions shall remain fully enforceable. The provisions of this
Agreement, which by their sense and context are reasonably intended to survive the
completion, expiration or cancellation of this Agreement, shall survive termination of this
Agreement.
17. Notices. Notices to the City of Tukwila shall be sent to the following address:
City Clerk
City of Tukwila
6200 Southcenter Boulevard
Tukwila, WA 98188
Notices to Consultant shall be sent to the following address:
18. Entire Agreement; Modification. This Agreement, together with attachments or addenda,
represents the entire and integrated Agreement between the City and the Consultant and
supersedes all prior negotiations, representations, or agreements written or oral. No
amendment or modification of this Agreement shall be of any force or effect unless it is in
writing and signed by the parties.
CA revised May 2020
Page 4
7
DATED this day of , 20
CITY OF TUKWILA CONSULTANT
By:
Allan Ekberg, Mayor
Printed Name:
Title:
Attest/Authenticated: Approved as to Form:
City Clerk, Christy O'Flaherty Office of the City Attorney
CA revised May 2020
Page 5
8
SCOPE OF SERVICES
Exhibit A
City of Tukwila
S 152"d St Non Motorized Connections Project
City Project No. 91710303
KPG Project No 21120
KPG Psomas Inc
February 2022
Project Description and Goals
This project will design and construct sidewalks on S 152nd Street as well as wayfinding at
nine critical locations to assist pedestrians and cyclists on decision making for routing and
safe walking. The new sidewalks will eliminate a gap in the pedestrian network that
services both the Tukwila International Boulevard Link Station (TIBS) and the local K-12
schools in the Tukwila School District. The TIBS station is within 1/3 mile of the project and
has a high rate of local pedestrians accessing the high-capacity transit site. Improving the
walkability of surrounding streets is expected to increase pedestrian access to the TIBS site
and reduce the reliance on local vehicular access into the surrounding parking lot and
overflow parking areas.
The City of Tukwila is in the process of creating zoning changes for the surrounding
Tukwila International Boulevard (TIB) neighborhood, supporting the creation of a transit
oriented development (TOD) neighborhood. Residential densities are expected to increase
substantially over the current level, parking standards would be reduced to encourage and
support transit mobility, and pedestrian passages along with improved sidewalks on
existing streets would create greater walkability. A new high-density housing (Bellwether)
site on S 152nd Street is providing a north/south pedestrian connection from the public
street to the TIBS overflow parking lot, north of the TIBS site. Wayfinding along this street
and at key locations in the immediate vicinity will be included.
This project is envisioned to change the current condition of two 10' wide lanes and 5'
paved shoulder on the north side of the street, to maximize the use of the existing 50' right-
of-way to include on -street parking, street trees, and separated sidewalks. Additionally, the
storm drainage system will be upgraded to close intermittent open ditches, replace existing
conveyance pipes where necessary, and install water quality improvements.
Undergrounding of the overhead aerial utilities is not expected.
Key Elements:
♦ Final design and PS&E for all work on S 152nd Street
♦ SEPA checklist
♦ Coordination with Bellwether site development for connections to the
north/south pedestrian corridor.
♦ Piping intermittent open ditch drainage
♦ Utility coordination
City of Tukwila Page 1 of 15 KPG Psomas Inc
S 152' St Non Motorized Connections 02/23/2022
9
The work included in this agreement includes all necessary survey, permitting, and design
to complete the project as described in the scope of work. No underground utility
construction is anticipated or included in the scope of work. A new conveyance system is
expected to be designed and constructed with these improvements. Water quality and
detention facilities are expected to be incorporated into the proposed drainage system.
Potential Supplemental Work:
• Environmental studies
• Construction support
Assumptions for the S 152nd St Non Motorized Connections
• Federal Funding will not be procured for the construction phase of the
improvements.
• ROW acquisition will not be required for this project. Permanent and Temporary
Easements may be required and KPG will utilize subconsultant for
documentation.
• SEPA will be required.
• DAHP EZ 1 Form per EO 21-02 will be required.
• Drainage & Water Quality Reports will be required.
• Environmental Documentation beyond SEPA and DAHP EZ form will not be
required.
• Undergrounding of the aerial utilities is not included in this scope of work.
• SCL will install required project illumination. KPG will document and identify
where supplemental illumination is required. Specific illumination plan and
specification preparation within the construction documents will not be required.
• City will provide As -Built Plans for existing development and 42nd Ave S
Stormwater Facility.
Deliverables
• Scroll Plots and meeting notes during the alternative selection process
• 30% review submittal with Plans and Estimate
• 60% review submittal with Plans, Specifications, and Estimate
• 90% review submittal with Plans, Specifications, and Estimate
• 100% review submittal with Plans, Specifications, and Estimate
• Routing of 30%, 60%, and 90% Plans to utilities for review and comment.
• Bid Documents and Engineer's Estimate.
• Coordinate upload of Plans and Specifications to Builders Exchange.
• Bid Analysis and recommendation for award.
• Preconstruction Meeting Attendance.
• Grant writing applications
• Illumination Memo
• Draft and Final Drainage Report
• Geotechnical Report
• Utility and Property Owner Coordination Logs
• SEPA Checklist
• EZ 1 Form for EO 21-02
City of Tukwila
Page 2 of 15 KPG Psomas Inc
S 152nd St Non Motorized Connections 02/23/2022
10
Scope of Work:
Task 1 Project Management/Coordination/Administration.
1.1 The Consultant will provide continuous project management for the project duration
through the bid opening and award in April 2023 (16 Months).
1.2 The Consultant shall prepare monthly progress reports identifying work in progress,
upcoming work elements, and reporting of any delays, problems, or additional
information needs. Any elements that may impact project completion time and cost
shall be highlighted. Monthly invoices for work completed to date shall be submitted to
the City.
1.3 The Consultant shall prepare for and attend up to two coordination meetings per
month (estimate 26 meetings) with the City during the project to discuss design
issues and track progress. The Consultant shall prepare a summary of design issues
and discussion items for all meetings.
Deliverables
• Project Schedule and necessary updates
• Monthly progress reports and invoicing
• Meeting agendas and minutes including a summary of decisions made / needed
resulting from design coordination meetings
Task 2 Survey and Base Mapping.
Limits of survey:
• S 152nd St (from right of way to right of way plus additional 10' and an additional 15'
at driveways and 50' at side streets) from 5' west of curb radii at Tukwila
International Boulevard to the east ROW line along 42nd Ave S.
• Existing 42nd Ave S Stormwater Detention facility including 20' beyond the fence line
to east, north and south.
• 42nd Ave S (from right of way to right of way) 150' north and south of the S 152nd St
Intersection.
2.1 Establish horizontal and vertical control points along the corridor for field topographic
survey. Basis of control will be NAD83(2011) and NAVD88. The CONSULTANT will
locate, field survey, and calculate positions for all monuments and control points
throughout the project limits, using the Washington State plane coordinate system.
Conventional or GPS surveying methods will be used on this project. Monuments or
corners to be located and field surveyed include the following:
• Section Corners
• Side street monuments
• Property Corners
2.2 Field Survey and Note Reduction. Perform note reduction of the field survey data.
2.3 Mapping work to prepare 1"=20' topographic base map and digital terrain model
City of Tukwila
Page 3 of 15 KPG Psomas Inc
S 152' St Non Motorized Connections 02/23/2022
11
(DTM) in AutoCAD format of the project within the limits described above as well as
incorporating existing mapping data provided by the City.
2.4 The Consultant will retain the services of a firm to field locate and paint all utility
locations within the project corridor so that they can be surveyed and incorporated
into the base maps. Service line locations and gravity storm and sewer will not be
field located. Perform field survey to locate paint marks including surface features
(valves, manholes, catch basins, junction boxes, vaults, etc). Irrigation systems will
not be included.
2.5 Perform observation and measure -downs of existing storm drain catch basins and
manholes. The approximate size, type (brick, concrete), and general condition of the
structures to confirm suitability for continued use, and approximate size and location
of storm drainage pipes will be documented. These observations will be made from
the surface.
2.6 The Consultant shall survey the utility potholes performed by franchise utilities.
2.7 QA/QC review base map for completeness and accuracy and incorporate findings.
Deliverables
♦ Electronic copies of the completed field topographic base map in PDF and
AutoCAD.
Task 3 Right of Way Calculations
Perform the following work items necessary to establish the existing right-of-way (ROW)
along the corridor based on publicly available information. Title research or property rights
acquisition is not anticipated or included in the project budget. Research Records.
Determine which existing corners and monuments should be field located and surveyed.
3.1 Determine and order title reports for up to five (5) parcels requiring easement
acquisition from a title company acceptable to the City.
3.2 Calculations for ROW centerline alignment and ROW lines. Using the research
information and the survey mapping work described above, calculate location and
surveyed corners, roadway features and monuments. The Consultant will determine
the centerline alignment for S 152nd St within the project limits as defined in this
scope. The ROW centerline will be defined geometrically using Washington state
plane coordinates and stationing will be assigned to the alignment.
3.3 Mark easement areas. Easement areas will be marked in white paint or survey hubs
for viewing by the land owners and ROW Consultant.
Deliverables:
♦ Right of way information will be incorporated into the project base maps.
♦ Title reports for affected properties.
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♦ Easement lines will be incorporated into the construction plan set.
Task 4 Preliminary Design
The Consultant shall prepare preliminary engineering of the S 152nd Non Motorized
Improvements. Preliminary engineering will include the following sub -tasks:
4.1 The Consultant shall evaluate up to five cross sections to determine the best fit
cross section for the corridor. Cross sections and their pros and cons will be
presented to City for evaluation. The Consultant shall make a recommendation on
which cross sections are most appropriate for the corridor.
4.2 The Consultant shall evaluate the feasibility of up to two new crossings of S 152nd
St. One mid block crossing connection to the Bellwether shared use path and
another potential crossing at 40th Ave S. Enhanced crossing treatments will be
evaluated for both crossings, including RRFB analysis.
4.3 The Consultant shall provide assistance to the City on identifying opportunities for
the integration of the directional wayfinding signs, to guide users to the major points
of interest. The Consultant shall coordinate with City to create design parameters for
the graphic content/aesthetic, theme/character development and alternatives for
thematic elements of the wayfinding. The Consultant shall attend up to (2) meetings
for design, review and approval wayfinding design. The Consultant shall integrate
the wayfinding design into Urban Design Toolkit deliverable.
4.4 The Consultant shall evaluate existing illumination system along the project limits.
Work shall include, but not limited to, identifying poorly illuminated areas, taking
inventory of existing fixtures, and model performance of the existing system.
Illumination improvements will likely include installation of new luminaires on existing
poles and/or adding utility poles and luminaires. KPG will provide the illumination
report and proposed pole locations to SCL for installation of the improvements.
4.5 The consultant shall prepare a draft design memo is based on the WSDOT Design
Manual (M 22-01), the American Association of State Highway Transportation
Officials (AASHTO) publication A Policy of Geometric Design of Highways and
Streets and the City of Tukwila Public Works Development Standards.
4.6 The Consultant shall prepare 30% Design Plans. Attend a meeting with City staff to
go through proposed improvements and discuss costs, and/or utilities to coordinate
relocations or design modifications.
It is anticipated that 30% plans will include the following sheets. Sheets may be
combined or separated for clarity:
Cover sheet
Sheet Index, Survey Control & Alignment Data
Legend and Abbreviations
Roadway Typical Sections
City of Tukwila
(1 sheet)
(1 sheet)
(1 sheet)
(1 sheets)
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Site Preparation Plans (2 sheets)
Roadway & Drainage Plan (4 sheets)
Details (2 sheets)
Curb Ramp & Crossing Plan (4 sheets)
Landscape Plans (2 sheets)
Irrigation Plans (2 sheets)
Urban Design Plans (2 sheets)
Wayfinding Plan (2 sheets)
TOTAL = 26 sheets
4.7 The Consultant shall prepare a 30% Cost Estimate.
4.8 The Consultant shall provide support of the City during coordination with Sound
Transit for connection to the parking station south of the project location.
4.9 Provide senior QA/QC review of preliminary deliverables.
Deliverables
♦ 5 Alternative Sections presented in scroll plot PDF format.
♦ 30% Plan Set 1 electronic copy in PDF format.
♦ Illumination Technical Memo, 1 bound copy and 1 electronic file in PDF format.
• 30% Cost Estimate, 1 electronic file in PDF format.
• Urban Design Toolkit including alternatives for wayfinding signage.
♦ Design Memorandum.
Assumptions
♦ Illumination improvements will include installation of new luminaires on existing
poles and/or adding utility poles and luminaires. It is anticipated that KPG will
provide proposed pole locations and that design and installation work will be
performed by SCL.
Task 5 Stormwater Management
The Consultant shall prepare preliminary engineering of stormwater management and
conveyance facilities required for the project. In addition, the consultant shall assess the
existing 42nd Ave S Stormwater Pond for incorporation into the stormwater management
requirements of the corridor improvements. Preliminary engineering will include the
following sub -tasks:
5.1 Compile and review existing stormwater data, including GIS data, record drawings,
and previous storm drainage reports for projects in the vicinity of the proposed
roadway improvements, including the 42nd Ave S Stormwater Facility.
5.2 Perform an offsite analysis in accordance with of the 2021 King County Surface
Water Design Manual (KCSWDM). The analysis will extend downstream from the
approximately 1/4 mile to the 42nd Ave S Stormwater Facility and the Gilliam Creek
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outfall.
5.3 Analyze all applicable Core and Special Requirements of the KCSWDM to
determine stormwater management requirements that will apply to the S 152nd St
project.
5.4 Identify potential alternatives for meeting stormwater management requirements of
the KCSWDM, including utilization of the existing 42nd Ave S Stormwater Facility and
a full retrofit of the roadway for water quality treatment. Perform preliminary
calculations for sizing alternatives facilities and prepare conceptual drawings to
illustrate each alternative.
5.5 Perform alternatives evaluation, consisting of planning -level cost estimates and
evaluation of advantages and disadvantages for each alternative identified in Task
5.4 for use in alternative selection by the City.
5.6 Prepare and submit a Draft Stormwater Design Report to document the preliminary
stormwater design activities performed in the above subtasks. The report will identify
a recommended alternative for the stormwater management design.
5.7 Prepare a Final Stormwater Design Report.
Deliverables
♦ Conceptual Drawings to illustrate each stormwater alternative., 1 electronic file
in PDF format
♦ Draft Stormwater Design Report, 2 bound copies of report and 1 electronic file
in PDF format
♦ Final Stormwater Design Report, 2 bound copies of report and 1 electronic copy
in PDF format
♦ Cost Estimate for the each stormwater alternative, 1 electronic file in PDF
format
Task 6 Geotechnical Services
The Consultant shall coordinate with a qualified geotechnical firm to complete field
investigations to support the project as follows:
The Consultant shall support and coordinate with the Sub -Consultant, Nv5, to complete the
following geotechnical work:
6.1 Geotechnical Exploration
The purpose of our services will be to provide geotechnical recommendations for support
design of the new and replaced HMA section for the proposed roadway, retaining walls,
luminary foundations, and utility installation. Our proposed scope of services is summarized
as follows:
• Review information. We will review available existing preliminary plans and
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geotechnical, geological, and environmental reports for the immediate area to
help evaluate stormwater infiltration potential.
• Plan, coordinate, and manage the field investigation, which will include the
following:
o Mark exploration locations and request public utility locates. A
separate trip to the site will be necessary to mark the exploration
locations in order to get the utility locates completed, and a second trip
will be necessary to observe locates and verify conflicts do not exist or
to select an alternate exploration location.
o Obtain a ROW permit and prepare an associated traffic control plan to
support the field activities and subcontract traffic control.
o Complete up to seven shallow borings to depths of up to 15 feet BGS
to explore the existing pavement section and the subsurface
conditions, and complete two boring up to 30 feet BGS within or
adjacent to the existing 42nd Avenue South detention pond. The
borings will be completed using hollow -stem auger drilling equipment.
Our representative will collect soil samples via the Standard
Penetration Test at approximately 2.5 -foot intervals to a depth of 12
feet BGS and then at 5 -foot intervals thereafter and maintain a log of
the subsurface conditions encountered.
• Complete geotechnical laboratory analyses on disturbed soil samples
collected from the explorations, including the following:
o Moisture content determinations
o Grain -size determinations
o Cation exchange capacity (CEC) tests
o Organic matter content determinations
• Prepare a draft (electronic PDF copy) and final report summarizing our
findings, conclusions, and recommendations related to the following:
City of Tukwila
o Subsurface soil and groundwater conditions and results the of
laboratory testing.
o Estimated preliminary soil infiltration rates based on the results of in-
situ testing and experience in the area
o Foundation recommendations for luminaries based on Washington
State Department of Transportation Chapter 17.
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o Pavement section recommendations for new pavement based on
traffic count and classification information provided by KPG. Pavement
sections will be provided for dense HMA.
6.2 Infiltration Study
The infiltration study will support design of the stormwater infiltration systems. The study is
not included in Task 1, as locations of infiltration elements are generally not available until
the civil engineering design progresses to approximately 30 percent. The study will include
explorations to evaluate the subsurface conditions at the proposed locations of stormwater
infiltration systems. Included under this task is an evaluation of the existing 42nd Avenue
South detention pond and associated critical areas as described above.
Our proposed scope of services to support design of shallow infiltration systems is
summarized as follows:
• Explore subsurface conditions by excavating up to two shallow test pits within
the proposed infiltration areas and collect samples in general accordance with
City code requirements.
• Perform small-scale pilot infiltration tests (PITs) in the test pits to
estimate long-term infiltration rates.
• Obtain a ROW permit and prepare an associated traffic control plan to
support the field activities and subcontract traffic control.
• Perform analytical laboratory testing (CEC tests and organic content
determinations) on samples near the base of the proposed infiltration
facilities to evaluate water quality treatment potential.
• Perform a geologic reconnaissance below the 42nd Avenue South
detention pond to identify geologic critical areas, observe existing
conditions, and identify potential project impacts and mitigation
measures in accordance with City Municipal Code subsection
18.45.120.
• Prepare a report summarizing our findings, conclusions, and
recommendations, including the following:
o Subsurface soil and groundwater conditions
o Recommended long-term soil infiltration rates for shallow
infiltration systems based on the results of the small-scale PITs
o Summary of measured infiltration rates for the 42nd Avenue
South detention pond
o Project impacts and potential mitigation measures for geologic
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critical areas adjacent to the 42nd Avenue South detention pond
Deliverables
♦ Draft and Final Geotechnical letter report
Task 7 Environmental Services
7.1 SEPA Checklist: The Consultant will prepare a SEPA checklist for the project
improvements based on the reviewed 30% Plans. Submittal and processing will be
by the City.
7.2 The Consultant will prepare and submit the EZ form in compliance with Washington
State EO 21-02. It is assumed that a formal cultural resources assessment will not
be required due to the developed nature of the site. An inadvertent discovery plan
will be prepared and included in the project specifications if required.
7.3 The Consultant will prepare a Notice of Intent letter for submittal to the Washington
Department of Ecology for a National Pollutant Discharge Elimination System
(NPDES) Construction Stormwater General Permit. The Stormwater Pollution
Prevention Plan (SWPPP) to support the NPDES permit will be prepared under Task
7. The application will include certification that public notice and SEPA requirements
have been met.
Assumptions:
♦ The City will submit all permit application materials to the resource agencies and
will pay all permit fees.
♦ The City will prepare and publish all required public notices for the permits.
♦ No other environmental permits besides NPDES will be required for this project.
♦ Preparation of a Stormwater Pollution Prevention Plan (SWPPP) will be by the
construction contractor and is not included in this scope of work.
Deliverables:
♦ SEPA submittal copies as required.
♦ EO 21-02 EZ form
♦ Inadvertent discovery plan, if required
♦ Notice of Intent
Task 8 Community Outreach
8.1 Meet with City to develop a community outreach coordination plan. It is assumed this
meeting will establish public outreach meeting needs and schedule (1 meeting).
8.2 Prepare and mail initial contact flyers with graphic and text (1 -page, double sided) to
the designated community members outlining the City's project goals, anticipated
schedule and invitation to the Open House Community Meeting. The Consultant
shall prepare and send flyer, City to provide a mailing list.
8.3 Prepare for and attend one Open House Meeting with the community to discuss the
preliminary and final design processes. The Consultant shall provide scroll plots,
City of Tukwila
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sample traffic calming device boards or graphics and up to 2 perspective drawings.
8.4 Prepare and mail two sets of follow up flyers with graphics and text (2 -page, double
sided) for community members as a follow up to the community meeting. Content to
be established by the City after the community meeting. Reduce information from
board and plots created for the community meeting in a format to be posted on the
City website.
8.5 Meet with property owners in the field to discuss layout placement and impacts.
Prepare additional graphics for property owner meetings, if necessary.
Deliverables:
♦ Design exhibits as required for described meetings and open house
♦ Meeting Minutes
♦ Graphics for property owner discussions
♦ Coordination Logs between project engineer and property owners
Task 9 Utility Coordination
9.1 Initial utility coordination letters will be sent to the Water District 125, PSE, Valley
View Sewer District, Seattle City Light, Comcast and other franchise utility providers
in the area at the beginning of the project. These letters will serve to notify the
utilities about the upcoming project and request information on any planned projects
along the corridor within the next 2 years. Follow up letters will be sent to the utilities
after each submittal along with a set of plans with the individual utility's facilities
highlighted. Potential conflicts will be identified, and potholing will be requested, if
necessary.
9.2 The Consultant will prepare presentation materials and attend up to four (4)
coordination meetings with franchise utility owners to review project elements,
potential conflicts, and schedule of construction.
9.3 Coordinate with the utility companies and identify locations for potholing based on
the preferred design alternative as determined after 30% review by the City.
Consultant will prepare a potholing plan for review and approval by the City. The
Consultant shall conduct all potholing of utilities utilizing a third party vactor
service or City provided vactor team. Pothole locations will be marked with pins to
identify depth from existing grade to top of their facilities. The pothole information will
be tabulated and shown on the plans for drainage profiles. Depths of utility lines
located by potholing will be identified by a symbol in the construction documents and
provided to the construction contractor.
9.4 Coordinate designs with the franchise utilities during the final design process
through email and phone conversations for coordination of adjustments, relocations,
and any planned upgrades by the utility owner.
City of Tukwila
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Deliverables:
♦ Pothole plans and field notes
♦ Design exhibits as required for described meetings
♦ Meeting Minutes
♦ Coordination Logs with utility owners for email and phone correspondence
♦ Any utility pole relocation or luminaire needs will be coordinated by the
Consultant but directed to SCL by the City.
Task 10 Grant Assistance
The following grant applications are anticipated to be submitted for during the design of the
project:
♦ DOE Water Quality Grant
♦ King County Flood Control Grant
♦ TIB Urban Arterial Program
♦ TIB Sidewalk Program
♦ WSDOT Safe Routes to School Programs
The Consultant shall provide assistance for preparation of up to five grant applications as
follows:
10.1 Review project and highlight elements that meet current grant funding criteria and
work collaboratively with the City to determine which elements of the project can be
included in the application.
10.2 Prepare supporting graphics for the project areas included in the application.
Deliverables:
♦ Grant Application materials, including but not limited to, graphics, cost
estimates, and plan sheets.
Task 11 Final Plans, Specifications and Estimates
The Consultant shall prepare Final Plans, Specifications and Estimates for advertisement
and award by the City. Plans shall be formatted to provide sufficient detail for convenient
field layout of all proposed facilities. City standard details and WSDOT standard plans will
be supplemented with project specific details as required. Final bid documents will be
signed by a licensed professional engineer in the State of Washington.
11.1 The consultant shall prepare 60% Plans, Specifications, and Estimates incorporating
comments from the 30% design meeting and utility/stakeholder coordination.
11.2 The Consultant shall prepare 90% Plans, Specifications, and Estimates,
incorporating City comments from the 60% and design review and utility/stakeholder
coordination.
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11.3 The Consultant shall prepare 100% Plans, Specifications, and Estimates,
incorporating City comments from the 90% and design review and utility/stakeholder
coordination.
11.4 The consultant shall prepare a final design memo is based on the WSDOT Design
Manual (M 22-01), the American Association of State Highway Transportation
Officials (AASHTO) publication A Policy of Geometric Design of Highways and
Streets and the City of Tukwila Public Works Development Standards. This memo
will include, a summary of the utility and stakeholder coordination work and a
summary of the public outreach process and feedback. Background documentation
for an environmental review shall be provided.
11.5 The Consultant shall prepare Bid Documents, Specifications, and Estimates,
incorporating City comments from the 100% and design review.
Bid documents will be uploaded to bxwa.com for advertisement by the City. It is
anticipated that final plans will include the following sheets. Sheets may be
combined or separated for clarity:
Cover sheet
Sheet Index, Survey Control & Alignment Data
Legend and Abbreviations
Roadway Typical Sections
Site Preparation Plans
Site Preparation Details
Roadway & Drainage Plan and Profile
Roadway & Drainage Details
Curb Ramp & Crossing Details
Wall Plan and Profile
Wall Details
Driveway Plan and Profile
Driveway Schedule and Details
Landscape Plans
Landscape Details
Irrigation Plans
Irrigation Details
Urban Design Plans
Urban Design Details
Wayfinding Plan & Details
TOTAL =
(1 sheet)
(1 sheet)
(1 sheet)
(1 sheets)
(2 sheets)
(1 sheet)
(4 sheets)
(6 sheets)
(6 sheets)
(2 sheets)
(1 sheet)
(4 sheets)
(1 sheet)
(2 sheets)
(1 sheet)
(2 sheets)
(1 sheet)
(2 sheets)
(2 sheets)
(3 sheets)
46 sheets
11.6 The Consultant shall provide internal QA/QC reviews of the following major work
elements prior to submittal to the City.
o Provide senior engineer review of 60% plans, specifications and estimates.
o Provide senior engineer and construction management review of 90% plans,
specifications and estimates.
City of Tukwila
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11.7 The Consultant shall provide bid phase services to include responses to bidder
inquiries, preparation of addenda, attendance at bid opening, preparation of bid
tabulation, and recommendation to award or reject the apparent low bidder. The
budget assumes a straight forward review process, including but not limited to,
reference checks, licensing checks, L&I checks, and bidder checklist confirmation,
with the low bidder receiving the contract award.
Deliverables
♦ 60% Plans (1/2 size), specifications & estimate, electronic files in PDF format
♦ 90% Plans (1/2 size), specifications & estimate, electronic files in PDF format
♦ 100% Plans (1/2 size), specifications & estimate, electronic files in PDF format
♦ Final Bid Documents, Plans provided in 'V2 size and full size, electronic files in
PDF format
♦ Final Design Memorandum
♦ Addenda Preparation, Bid tabulation and analysis, and a recommendation to
award letter.
Task 12 Right Of Way
12.1 KPG will prepare legal descriptions and exhibit maps for up to five (5) parcels
requiring temporary construction easements. Conduct up to five (5) one-on-one
meetings with adjacent residents to describe the project and obtain right of entry
signatures.
12.2 Prepare right of entry and license to construct forms and exhibits for each property
along the corridor, up to five (5).
12.3 KPG will prepare draft and final Right-of-way plans showing all required permanent
and temporary construction easements.
KPG Deliverables:
♦ Legal descriptions and exhibits for up to 5 parcels requiring fee take and/or
temporary construction easements.
♦ Right of entry forms and exhibits (5 parcels)
12.4 RES Group Northwest will perform services under subcontract with the Consultant.
Services will include the following:
A. Project funding estimate (PFE) and Administrative offer summary (AOS)
Based on the approved right of way plan, the Consultant will prepare and PFE
and AOS for up to two (2) impacted parcels. The PFE report will utilize
consistent comparable sales and valuation techniques. AOS will be written for
acquisitions under $25,000 in the PFE. It is assumed that no formal appraisals
will be required.
B. Title review, Clearing, and Closing
The Consultant will review title reports for acquisition parcels and provide Title
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Review Memo identifying all potential encumbrances to project team members.
The Consultant will assist in clearing the necessary encumbrances prior to
closing if feasible.
C. Right of Way Documentation, Negotiations, and Closing
The Consultant will assist the City in developing all right of way documents /
offer letters in accordance with the City's right of way procedures manual for
acquisition of impacted properties using City approved forms. The Consultant
will act in good faith at all times and never coerce owners in an attempt to settle
the parcels. All negotiations will start with an in person presentation of all offers
when feasible. We will identify property owner issues, concerns and differences
early on and document that information in the individual parcel negotiation
diaries. The Consultant will work with City staff throughout the negotiation
process with the property owners.
Assumptions:
• KPG will order and review title reports.
RES Deliverables:
• Project Funding Estimate (hard copy and electronic PDF)
• Communication Log / Right of Way Tracking Spreadsheet describing all
communication with property owners.
Additional Services
The City may require additional services of the Consultant in order to advance all or portions
of the project corridor through final design and construction. This work may include items
identified in the current task authorizations as well other items, which may include, but are not
necessarily limited to the following:
• Providing additional permitting or environmental studies
• Providing additional design services
• Providing additional right of way services
• Providing construction management services
These services will be authorized under a future contract supplement if necessary. At the
time these services are required, the Consultant shall provide a detailed scope of work and
an estimate of costs. The Consultant shall not proceed with the work until the City has
authorized the work and issued a notice to proceed.
City of Tukwila
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EXHIBIT B
PRIME CONSULTANT COST COMPUTATIONS
Client: City of Tukwila
Project: S 152nd St Non Motorized Connections
City Ptoject Number: 91710303
DATE: 03/14/2022
Task
No.
Task Description
Labor Hour Estimate
Total Hours and Labor Fee
Estimate by Task
Principal
Engineering
Manager
Senior
Engineer
Senior
Project
Engineer
Project
Engineer II
Design
Engineer
Technician
Engineering
Assistant
Survey
Manager
Survey Crew
II (W/Equip)
Project
Surveyor
Survey
Technician
Urban Design
Manager
Project
Landscape
Architect
Landscape
Technician
Senior
Transportatio
n Planner
Construction
Manager
CAD Manager
CAD
Technician
Business
Manager
274
246
203
179
153
126
100
90
246
238
155
105
195
141
100
167
188
177
112
174
Hours
Fee
Task 1 Project Management/Coordination/Administration (16 Months)
1.1
Project Management Administrative Services
16
32
20
68
$ 12,312.00
1.2
Internal Project Management and Coordination (2 per month)
4
16
40
4
8
72
$ 13,060.00
1.3
Project Coordination Meetings with City (2 per month)
16
40
4
4
4
68
$ 12,068.00
Task Total
4
48
0
0
112
0
0
0
0
0
0
0
8
12
0
4
0
0
0
20
208
$ 37,440.00
Task 2 Survey and Basemapping
2.1
Horizontal and Vertical Control
2
16
18
$ 4,300.00
2.2
Field Survey and Note Reduction
2
16
18
$ 2,172.00
2.3
Basemapping
2
68
60
130
$ 22,976.00
2.4
Survey Utility Locates
8
2
10
$ 2,114.00
2.5
Measure Downs
8
2
10
$ 2,114.00
2.6
Pothole Survey
4
2
6
$ 1,162.00
2.7
QAQC
4
4
$ 984.00
Task Total
0
0
0
0
0
0
0
0
10
104
0
82
0
0
0
0
0
0
0
0
196
$ 35,822.00
Task 3 Right of Way Calculations
3.1
Title Report Review
4
4
8
$ 1,604.00
3.2
Centerline and ROW Calculations
8
20
28
$ 5,068.00
3.3
Easement Field Markings
8
12
20
$ 3,764.00
Task Total
0
0
0
0
0
0
0
0
12
8
36
0
0
0
0
0
0
0
0
0
56
$ 10,436.00
Task 4 Preliminary Design
4.1
Cross Section Evaluation
2
4
12
16
34
$ 5,384.00
4.2
New Crossing Evaluation
20
4
8
20
16
68
$ 10,352.00
4.3
Wayfinding Integration
2
8
16
26
$ 4,122.00
4.4
Illumination Evaluation & Memorandum
32
40
72
$ 10,496.00
4.5
Draft Design Memoandum
4
4
12
20
$ 3,632.00
4.6
30% Design Plans
2
16
4
8
32
20
2
12
8
8
24
136
$ 18,754.00
4.7
30% Cost Estimate
8
8
16
4
2
2
40
$ 5,936.00
4.8
Sound Transit Coordination
2
20
22
$ 3,608.00
4.9
QAQC
4
4
4
8
20
$ 3,736.00
Task Total
6
12
84
8
74
72
84
0
0
0
0
0
12
30
8
16
0
8
24
0
438
$ 66,020.00
Task 5 Stormwater Management
5.1
Compile and Review Existing Stormwater Data
8
16
24
$ 3,448.00
5.2
Offsite Analysis
8
24
32
$ 4,456.00
5.3
Core and Special Requirements Analysis
8
20
28
$ 3,952.00
5.4
Alternative Identification
16
4
32
52
$ 7,508.00
5.5
Alternative Evaluation
24
4
40
68
$ 9,948.00
5.6
Draft Stormwater Design Report
16
40
56
$ 7,904.00
5.7
Final Stormwater Design Report
24
20
44
$ 6,816.00
5.8
Conveyance System Design
24
4
100
128
$ 17,508.00
Task Total
0
0
0
128
12
292
0
0
0
0
0
0
0
0
0
0
0
0
0
0
432
$ 61,540.00
Task 6 Geotechnical Services
6.1
Consultant Support of Geotechnical Subconsultant
4
16
8
28
$ 4,172.00
Task Total
0
0
0
4
16
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
28
$ 4,172.00
Task 7 Environmental Services
7.1
SEPA Checklist
2
16
4
22
$ 3,444.00
7.2
DAHP EZ Form
4
4
$ 612.00
7.3
NPDES & SWPPP Preparation
4
8
4
16
$ 2,444.00
Task Total
0
2
0
4
28
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
42
$ 6,500.00
24
Task 8 Community Outreach
8.1
City Outreach Plan Meeting (One Meeting)
2
4
2
8
$ 1,368.00
8.2
Initial Mailers to community members (One Mailer)
2
8
8
20
38
$ 5,714.00
8.3
Open House Meetings (One Meeting)
4
4
4
4
12
12
40
$ 5,772.00
8.4
Follow-up Mailers (Two mailers)
2
4
4
20
30
$ 4,750.00
8.5
On Site meetings (Up to four)
4
4
$ 612.00
Task Total
0
4
0
0
14
4
0
0
0
0
0
0
8
26
24
0
0
0
0
40
120
$ 18,216.00
Task 9 Utility Coordination
9.1
Utility Coordination Letters
4
8
12
$ 1,620.00
9.2
Utility Coordination Meetings (up to 4)
4
8
8
20
$ 3,044.00
9.3
Pothole Plans
2
8
10
$ 1,314.00
9.4
Final Coordination for Adjustments and Relocations
2
2
12
8
24
$ 3,742.00
Task Total
0
2
6
0
26
32
0
0
0
0
0
0
0
0
0
0
0
0
0
0
66
$ 9,720.00
Task 10 Grant Assistance
10.1
Review Project Elements for Funding Criteria
2
2
2
4
10
$ 1,824.00
10.2
Prepare Supporting Graphics
2
16
18
$ 2,562.00
Task Total
0
2
0
2
4
0
0
0
0
0
0
0
0
16
0
4
0
0
0
0
28
$ 4,386.00
Task 11 Final Plans, Specifications, and Estimates
11.1
60% Plans, Specificaitons, & Estimate
2
8
24
40
8
40
8
16
16
162
$ 20,644.00
11.2
90% Plans, Specificaitons, & Estimate
4
40
40
60
60
40
16
16
40
316
$ 41,760.00
11.3
100% Plans, Specificaitons, & Estimate
4
8
24
20
8
8
2
16
12
102
$ 14,166.00
11.4
Final Design Memorandum
2
16
16
34
$ 4,956.00
11.5
Bid Documents
2
8
24
16
2
2
54
$ 8,476.00
11.6
QAQC
4
12
16
8
8
32
80
$ 15,968.00
11.7
Bid Period Services
2
12
4
18
$ 2,832.00
Task Total
4
28
80
8
148
156
76
88
0
0
0
0
28
50
68
0
32
0
0
0
766
$ 108,802.00
Task 12 Right of Way Services
12.1
Prepare Legal Descriptions and Exhibit Maps
4
8
8
20
$ 2,860.00
12.2
Right of Entry and License to Construct
8
16
8
32
$ 4,480.00
12.3
Prepare Draft and Final Right of Way Plans
4
8
8
20
$ 2,860.00
Task Total
0
0
0
0
16
32
0
0
0
0
24
0
0
0
0
0
0
0
0
0
72
$ 10,200.00
Total Labor Hours and Budget
14
98
170
154
450
604
160
88
22
112
60
82
56
134
100
24
32
8
24
60
2,452
$ 373,254.00
Subconsultants
Task 6.2 Geotechnical Services (Nv5)
$ 54,000.00
Task 12.3 Right of Way Services (RES Group Northwest)
$ 10,000.00
Total Subconsultant Expense
$ 64,000.00
Reimbursable Direct Non -Salary Costs
Mileage at current IRS rate
$ 500.00
Reproduction Allowance
$ 500.00
Title Reports
$ 5,000.00
Utility Locates
$ 5,000.00
Potholing
$ 5,000.00
Total Reimbursable Expense
$ 16,000.00
Total Estimated Budget
$ 453,254.00
25
26
City of Tukwila
Allan Ekberg, Mayor
Public Works Deportment - Had Ponnekrznti, Director/City Engineer
INFORMATIONAL MEMORANDUM
TO: Transportation & Infrastructure Services Committee
FROM: Hari Ponnekanti, Public Works Director/ City Engineer
By: Cody Gray, Operations Manager — Fleet, Facilities & Street Maintenance
Garron Herdt, Fleet Superintendent
DATE: March 18, 2022
SUBJECT: Fleet & Facilities Public Works Shop - Equipment
Issue
Approve the purchase of two lifts for the new Fleet & Facilities Shop and the cost of moving one existing lift and one crane
from the George Long Shop to the new facility.
Background
The new Fleet & Facilities Heiser building has three lift bays for repair of fleet vehicles. The original plan accounted for the
purchase of one lift and the relocation of two lifts from the George Long building. However, one of the existing lifts is obsolete
and has subsequently suffered mechanical issues rendering it unusable. As a result, the City will need to purchase a second
new lift to meet capacity needs of the Heiser building. The existing rotary 2 -post hoist lift and a heavy-duty crane will move to
the new shop as well.
Discussion
Fleet Services reached out to four potential vendors to relocate the existing lift and purchase two lifts - one 20,000 lb. capacity
2 -post lift and one 16,000 lb. 2 -post lift with 3 -stage front and rear arms. The attached quote from Shop Equipment Co., Inc.
was the lowest responsive bid.
Financial Impact
Costs for purchasing and moving the vehicle lifts will be 100% funded from the Fleet Replacement budget in the 501 Fund.
The Fleet Replacement budget is more than sufficient to cover these costs.
Cost Estimate Fleet Replacement Budget
Two new lifts $58,291.05 $572,000
Transfer existing lift & crane 6.407.82
Total $64,698.87
Recommendation
Council is being asked to approve the purchase of two (2) lifts, including shipping and installation, from Shop Equipment Co.,
Inc. and the transfer of existing shop equipment in the amount of $64,698.87 and consider this item same day at the March 21,
2022 Regular New Business Meeting.
Attachment: 2021 CIP, page 56
Shop Equipment Co., Inc. Purchase Estimate
Shop Equipment Co., Inc. Transfer Estimate
Fleet & Facility Services -14000 Interurban Avenue, Tukwila, WA 98168 - 206-431-0166
Tukwila City 'atf i 6200 Satothcenter&auikvard ■ Tukwila, WA 98188 2015-4.33-1800 * Website: Tukwi aWA.gtw
27
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2021 to 2026
PROJECT: Public Works Shops Project No. 91630601
DESCRIPTION: Construct a new City Public Works maintenance and operations center, combining all operational functions
at one location. Facility may also include a City Clerk & Police Records Center and Police evidence storage.
Existing Public Works operations and maintenance areas are inadequate structurally and seismically. Current
JUSTIFICATION: land for staging dirt and vactor materials is only temporary. Project includes selling dirt/vactor land, Minkler
Shops,
and George Lona Shops to acquire the real estate to build an equipment operations center that meets current
STATUS: Separate from the Public Safety Plan. Was formerly known as City Maintenance Facility.
MAINT. IMPACT: Improves safety and efficiency for First Responders and maintenance operations.
COMMENT:
Based on usage and benefits, it is estimated that the Water, Sewer, and Surface water enterprise funds will
fund 50% of the Public Works Shops with the other 50% funded by Streets, Facilities, & Equipment Rental.
FINANCIAL Through Estimated
(in $000's)
2019 2020 2021
2022
2023
2024
2025
2026
BEYOND TOTAL
EXPENSES
Project Location`
4 :0 +
411
I
j� t�JicCBhi A. 1 r�R'
O _
,\,,, , i
1
Design/PM
722
300
500
mil
1,522
Land (R/W)
25,462
11.
25,462
Const. Mgmt.
11
1,050
p 1
'
-11
1,061
Construction
14
624
7,517
,W�3ostow
20,000
20,000
48,155
TOTAL EXPENSES
26,209
924
8,567
0
500
20,000
20,000
0
0
76,200
FUND SOURCES
Enterprise Funds
8,572
462
4,284
250
20,000
33,568
Councilmatic Bond
5,572
20,000
25,572
REET/ Funds
3,000
3,000
6,000
General Fund
462
1,283
250
1,995
306 Fund Balance
9,065
0
0
0
0
(20,000)
20,000
0
0
9,065
TOTAL SOURCES
26,209
924
8,567
0
500
20,000
20,000
0
0
76,200
2021 - 2026 Capital Improvement Program
56
28
Project Location`
4 :0 +
411
I
j� t�JicCBhi A. 1 r�R'
O _
,\,,, , i
1
v
mil
.
;
11.
4
P
k
INIII
p 1
'
-11
12 5L. inFili ,ry�„ 1�' GIS
'
,W�3ostow
2021 - 2026 Capital Improvement Program
56
28
Shop Equipment Co., Inc.
rt uia,`stotetse Svrace Elwsre ce
Aurora, OR 97002 QUOTE
Estimate #
Phone # 503.620.2794 Fax # 503.620.1763
18749
Ship To
City of Tukwilla
14000 Inner Urban Ave S
Tukwila, WA 98068
Date
Terms
Rep
11/16/2021
Net 10 days
PJ
Qty
Item
Description
Cost
Total
1
1
1
2
Move
Move
SC
Material - Install
Move Rotary two post hoist.
1,500.00
3,500.00
450.00
185.00
1,500.00T
3,500.00T
450.00T
370.00T
Move Crane
Service Call
EPDXY ANCHOR PACKAGE
Sales Tax (10.1%) $587.82
Total $6,407.82
Signature
29
Shop Equipment Co., Inc.
Ateeto totetse Se/race E waote#c
Aurora, OR 97002 QUOTE
Estimate #
Phone # 503.620.2794 Fax # 503.620.1763
18858
Ship To
City of Tukwila
14000 Inner Urban Ave S
Tukwila, WA 98068
Date
Terms
Rep
2/1/2022
Net 10 days
PJ
Qty
Item
Description
Cost
Total
1
1
I
1
1
1
I
1
1
1
2
16,000 LB CAPACITY 2 POST
Symmetric cargo vehicle 2 -post lift, 3 -stage front and 3 -stage rear arms (174 in.
height) - Designed specifically for cargo van style carrying vehicles.
Shipping & Handling
Freight Surcharge
Install 2 post, less electrical (208/230 VAC, single phase on a 30 amp service).
Hydraulic oil for lift power unit
CH-CL16-3S
21,598.58
21,598.58T
S&H
S&H
Install 2p
Hyd. oil
1,195.00
1,263.00
1,500.00
35.00
1,195.00T
1,263.00T
1,500.00T
35.00T
20,000 LB CAPACITY 2 POST
CH-CL20
Challenger 20,000 lb capacity Symmetric 2 -post lift, 2 -stage front and 2 -stage
rear arms, single point air actuated lock release (174 in. height)
22,849.15
22,849.15T
S&H
S&H
Install 2p
Hyd. oil
Material - Install
Shipping & Handling
Freight Surcharge
Install 2 post, less electrical (208/230 VAC, single phase on a 30 amp service).
Hydraulic oil for lift power unit
1,263.00
1,335.00
1,500.00
35.00
185.00
1,263.00T
1,335.00T
1,500.00T
35.00T
370.00T
Hilti Anchor Package
Sales Tax (10.1%) $5,347.32
Total $58,291.05
Signature
30
City of Tukwila
Allan Ekberg, Mayor
Public Works Department - Harr Ponnekanti, Director/City Engineer
INFORMATIONAL MEMORANDUM
TO: Transportation and Infrastructure Services Committee
FROM: Hari Ponnekanti, Public Works Director
BY: Cyndy Knighton, Senior Program Manager
Deontae Elder, Transportation Project Manager
CC: Mayor Ekberg
DATE: March 18, 2022
SUBJECT: Neighborhood Traffic Calming Program
Project No. 80010301
Allentown Neighborhood Transportation Study
ISSUE
Provide status update for the Neighborhood Traffic Calming Program (NTCP) and an update on the
traffic calming study conducted by KPG Psomas (KPG) for the Allentown neighborhood.
BACKGROUND
Late in 2021, the Council provided $100,000 to the 2021 NTCP budget and reinstated the full
$400,000 to the 2022 budget by using ARPA funding made available to the City from the Federal
government. At the same time, staff presented the Top -10 Recommended NTCP Projects list.
Nearly all of the 2021 budget ($98,863.39) was expended by replenishing normal stock items used
in traffic calming, such as street signs and speed feedback signs. Staff also purchased Rectangular
Rapid Flashing Beacon units and additional rubber speed cushions for future installation. Staff
directed KPG to conduct a traffic calming study in Allentown (Project A on the Top -10 List) as part
of their on-call contract for traffic calming support. The S 144th Street/46th Avenue S ADA Ramps
project is being designed and will be constructed as part of the 2022 Annual Overlay Program.
For the Allentown neighborhood study, KPG was directed to prepare a Transportation Study to
evaluate existing conditions, vehicle volumes and speeds, signage, and five years of historical
crash data. The draft report (attached) discusses their finding to potentially improve safety, calm
traffic, and enhance pedestrian mobility. Preliminary cost estimates on the recommended
improvements are also included in the report.
DISCUSSION
Overall, staff has made progress on several of the Top 10 list for 2022. The Allentown Neighborhood
Speed and Safety Study findings are discussed below. The Tukwila Community Center (TCC)
Pedestrian Crossing Safety Improvements will install two Rectangular Rapid Flashing Beacons
(RRFBs) adjacent to the TCC this summer. The design is currently at the 50% level and will be
completed in the second quarter.
The City will also be receiving a new Complete Streets grant from the Transportation Improvement
Board in the second quarter of 2022, with a minimum award of $300,000 that is eligible to expend on
ADA and Pedestrian Safety Improvements. Staff will be recommending that once the grant amount
31
https:lltukwilawa.sharepoint.com/sites/publicworks/engineeringlpw drop box/01 tic agenda/2022 agenda items/tic 03-21-22/3. ntcp allentown update/information memo - ntcp update + allentown 3-21-22.docx
Traffic Calming Info Memo
Page 2
has been determined and awarded, the grant could be used to fund part or all of the Tukwila
Elementary Schools Safety Improvements, Impact Charter School Safety Improvements, Cascade
View Elementary School Safety Improvements, and Ryan Way Pedestrian Safety Improvements.
Beginning design and improving signage for these projects can begin in the second or third quarter
of this year, depending on staffing availability.
Allentown Neighborhood Speed and Safety Study
KPG staff will be attending the March 28, 2022 Committee of the Whole meeting to present findings
and recommendations of the attached Allentown Neighborhood Transportation Study. The report
studies existing conditions on several of the key streets in the neighborhood and makes some
recommendations for improvements that could be made to improve quality of life for residents, reduce
speeds and improve safety for all users. The primary focus of this study is on S 124th Street, 42nd
Avenue S, S 115th Street, and 50th Place S. This study is in addition to the other studies currently
underway in the area: the 42nd Avenue S Bridge Replacement, the Alternative Truck Access EIS, and
the reopening of the 42nd Avenue S Bridge.
The attached study recommends a variety of improvements on some of Allentown's key streets
including S 124th Street, 50th Place S and 42nd Avenue S. Speed cushions are not recommended for
use on the collector arterial streets (S 115th Street, 42nd Avenue S, S 124th Street, and 50th Place
S), but could be used in the future on the local streets.
FINANCIAL IMPACT
Projects on the Staff Top -10 list, including all of the recommendations made in the attached study for
Allentown neighborhood traffic calming, are now anticipated to cost over $1.2 million. Some of these
costs can be borne by the existing $400k budget and the future Complete Streets grant award of
$300-500k (restricted to ADA and pedestrian safety improvements).
Planning level cost estimates for construction of the recommended Allentown improvements are
provided in the Allentown Neighborhood Transportation Study: Appendix B, but do not include costs
for engineering, permitting, or construction management. If all of the above work is desired to be done
in one calendar year, the department will require more staffing resources to execute the projects.
RECOMMENDATION
The Council is being asked to consider the Allentown Neighborhood Traffic Calming Study and
consider this item at the March 28, 2022 Committee of the Whole meeting. The council is also being
asked to direct the priority of top 10 list and the priority of Allentown traffic calming projects.
ATTACHMENTS: CIP Page 2 Traffic Calming/Residential Safety Improvements
Allentown Neighborhood Transportation Study
Staff Top -10 Recommended NTCP Projects List Updated 3-14-22
Staff Top 10 Recommended NTCP Projects Map
32
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2021 to 2026
PROJECT: Traffic Calming/Residential Safety Improvements Project No. 80010301
Programmatic approach to addressing neighborhood traffic concerns through a variety of methods.
DESCRIPTION: Residential street improvements with sidewalks, safety improvements, and bike facilities.
JUSTIFICATION: Neighborhood revitalization by improving residential streets.
STATUS: Future candidates are listed in the citywide comprehensive update and safety -based prioritization of
residential street improvements, sidewalks, and bike lanes.
MAINT. IMPACT: Varies, depends on treatment(s) used.
COMMENT: Residential improvements and traffic calming features to reduce speeds and improve pedestrian and bicycl
such as the speed cushions, RRFB crossings, LED enhanced signs, Radar driver feedback signs, etc.
FINANCIAL
(in $000's)
Through Estimated
2019 2020 2021
2022
2023
2024
2025
2026
BEYOND
EXPENSES
Design
63
50
100
100
Land (R/W)
Const. Mgmt.
37
Construction
148
0
300
TOTAL EXPENSES
248
50
100
400
0
0
0
0
0
FUND SOURCES
ARPA Funding
100
400
Awarded Grant
Proposed Grant
Mitigation Actual
Mitigation Expected
City Oper. Revenue
248
50
0
0
0
0
0
0
0
TOTAL SOURCES
248
50
0
0
0
0
0
0
0
2021 - 2026 Capital Improvement Program
2
33
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
e safety
TOTAL
313
0
37
448
798
500
0
0
0
0
298
798
2021 - 2026 Capital Improvement Program 2
34
PSOMAS
Memorandum
To: Public Works Department, City of Tukwila
From: KPG
Date: 3/14/2022
Re: Allentown Neighborhood Transportation Study
The City has received several requests for traffic calming from citizens in the Allentown
Neighborhood. As part of the Neighborhood Traffic Calming Program, the City hired KPG to
evaluate existing roadway and non -motorized facilities, adjacent land uses, vehicle speeds, vehicle
volumes, signage, and five years of historical crash data. Based on this analysis, KPG developed a
set of potential improvements to calm traffic, improve safety, and enhance pedestrian mobility.
The approximate boundaries of the Allentown Neighborhood are the Duwamish River to the south
and west, S 115th Street to the north, and 1-5 to the east. The primary land uses in the
Neighborhood are residential, Tukwila Community Center, BNSF Railway Intermodal facility.
Figure 1 shows a map of the Allentown Neighborhood study area.
Street Network
Due to Duwamish River, BNSF Railroad tracks, and 1-5 being located around the perimeter of the
Allentown Neighborhood, there are only three access points to the Neighborhood at S 115th
Street, 42nd Avenue S bridge over the Duwamish River, and 50th Place S that connects to S 129th
Street. S 129th Street provides one of the few crossings of the BNSF Railroad tracks and 1-5 in the
area.
There are two street classification types in the Allentown Neighborhood: Collector Arterials and
Local Streets. The Collector Arterials are S 115th Street, 42nd Avenue S, S 124th Street, 50th Place
S, and S 129th Street. The Collector Arterials are intended to carry the majority of the traffic
through the Neighborhood. Local Streets are intended to provide circulation and access to
adjacent properties. Except for local access, trucks are restricted on S 115th Street and the
segment of 42nd Avenue S, north of S 124th Street.
Truck Traffic
The BNSF Railway Intermodal facility is located along the eastern boundary of the neighborhood
with its primary access on S 124th Street at 51st Place S. This facility generates a high volume of
truck traffic as containers are transferred between trains and trucks. There are other businesses in
the Neighborhood along 44th Place S and 51st Place S that generate truck traffic and trucks must
use Local Streets to access these businesses.
3131 Elliott Avenue, Suite 400, Seattle, WA 98121 206.286.1640 www.kpg.com
35
KPG
PS O M A 5
Figure 1. Allentown Neighborhood Study Area
TUKWILA
COMMUNITY
CENTER
TRAFFIC DATA COLLECTION
LOCATION N
COLLECTOR ARTERIALS A
2 of 9
36
P
PSr O M A 5
Related Projects in Allentown
Allentown Truck Reroute Project
This project is evaluating potential alternative routes to access the BNSF Railway Intermodal
facility. Alternatives include maintaining the existing access or relocating the facility access to the
north or south. An Environmental Impact Statement is currently being prepared to assess the
impacts of each alternative.
Replacement of 42nd Avenue S bridge over Duwamish River
The 42nd Avenue S bridge over the Duwamish River connects the Allentown Neighborhood with
Interurban Avenue S. The bridge is considered structurally deficient and the City will replace the
bridge either at its current location or relocate it to cross the Duwamish River at S 124th Street. In
December 2021, the bridge was damaged by an over -height truck load and was closed to all
modes of travel pending repairs.
Traffic Calming
Traffic calming uses physical improvements and other strategies to slow vehicle speeds and
improve safety through neighborhood areas. Traffic calming treatments include signs, pavement
markings, chicanes, roundabouts, center medians, speed humps or cushions, raised crosswalks,
on -street parking, and narrowing the roadway with striping, raised curb or curb bulbs. The
decision on whether to install traffic calming should consider the potential for diverting traffic to
parallel routes, emergency vehicle response times, type of vehicles using the roadway, travel delay
and neighborhood support.
For collector arterial streets such as S 115th Street, 42nd Avenue S, S 124th Street, and 50th Place
S, KPG does not recommend the installation of speed humps or cushions for the following reasons:
• Inappropriate for collector arterials which are intended to carry the majority of traffic in
the Neighborhood.
• Potential for vehicles to shift from arterials to parallel local streets.
• Negative impacts to emergency vehicle response times (including Tukwila Fire Station 53).
• Noise impacts to homes due to vehicles crossing cushions, braking and accelerating.
• Not compatible with truck operations that access existing businesses in the Neighborhood.
Analysis Findings and Potential Improvements
The transportation volume and speed data were collected in 2020 and 2021 during the COVID-19
pandemic when traffic volumes were potentially lower due to more people working from home
and fewer people traveling for social and recreational activities. The 42nd Avenue S bridge over
the Duwamish River was closed for repairs when part of the 2020 traffic data was collected on
42nd Avenue S, north of S 124th Street. KPG evaluated the most recent five years of historical
crash data (9/10/2016 - 9/9/2021). A summary of the crash data is provided in Appendix A.
The following sections describe the characteristics of individual streets in the Neighborhood and
potential improvements to calm traffic, improve safety, and enhance pedestrian mobility. The
potential implementation of these improvements will require additional input from the public and
stakeholders and will depend on available funding for design and construction. Cost estimates and
additional description of the potential improvements is included in Appendix B.
3 of 9
37
S 124th Street
Street Classification
Collector Arterial
Speed Limit
25 mph
Eastbound Average Vehicle Speed
27 mph
Eastbound 85th Percentile Vehicle Speed
33 mph
Westbound Average Vehicle Speed
27 mph
Westbound 85th Percentile Vehicle Speed
33 mph
Average Weekday Traffic Volume
8,100
Note: Data collected July and August 2021.
S 124th Street provides access to single family homes,
Tukwila Community Center, and BNSF's Intermodal
facility at the east end of the street. There is curb and
sidewalk along the frontage of the Community Center
and the north side of the street has a pedestrian
walkway with segments of extruded curb that provide a
buffer from the roadway between 42nd Avenue S and
49th Avenue S. An eastbound vehicle speed radar
feedback sign is located at 45th Avenue S. S 124th
Street experienced 8 crashes during the five-year study
period. In 2019, there was a fatal vehicle -pedestrian
crash at the S 124th Street/46th Avenue S intersection.
Potential Improvements:
KPG
PSOMAS
S 124th Street at 46th Avenue S (looking west)
• Rectangular Rapid Flashing Beacon (RRFB) system at 44th Avenue S (Community Center
driveway) — construct raised curb and sidewalk at the northeast corner of the 44th Avenue
S intersection to separate pedestrians and vehicles, narrow the pedestrian crossing
distance, and provide traffic calming.
• RRFB system at 46th Avenue S — construct raised curb and sidewalk at the northwest
corner of the 46th Avenue S intersection to separate pedestrians and vehicles, narrow the
pedestrian crossing distance, and provide traffic calming.
• North side pedestrian walkway between 49th Avenue S and 51st Place S — improve this
segment to provide a continuous pedestrian walkway along north side of S 124th Street.
• Remove eastbound right turn slip lane at the
50th Place S intersection — currently, eastbound
right turning vehicles are not required to stop at
the intersection. Reconfigure the intersection
with a single -lane eastbound approach and
maintain all -way stop control. Evaluate truck
turning movements and pedestrian facilities.
Requiring eastbound right turn vehicles to stop
will calm traffic and improve safety.
4 of 9
S 124th Street/50th Place S intersection
38
S 115th Street
Street Classification
Collector Arterial
Speed Limit
30 mph
KPG
PSOMAS
S 115th Street runs east -west between East Marginal Way S and 42nd Avenue S. The street
provides access to the Duwamish Hill Preserve and the Allentown Neighborhood. There is a
sidewalk on the north side of the street.
Potential Improvement
• Speed limit reduction — lower the speed limit from 30 mph to 25 mph to lower speed
entering the Allentown Neighborhood and to be consistent with the speed limit on 42nd
Avenue S.
42nd Avenue S
Notes: 'Data collected 1/13/2022-1/22/2022 when 42nd Avenue S bridge over Duwamish River was closed.
2 Data collected August 2021.
42nd Avenue S runs along the east bank of the
Duwamish River with residential homes along the
east side of the street. There is a pedestrian bridge
crossing of the river at S 119th Street and the
Duwamish Park is located at approximately S 117th
Street. A continuous sidewalk runs along the east
side of the street between S 115th Street and
Interurban Avenue S, except for a missing segment
at the southeast corner of the S 124th Street/42nd
Avenue S intersection. The 42nd Avenue S corridor
experienced 10 crashes during the five-year study
period; of these crashes, 4 crashes occurred at the
S 124th Street/42nd Avenue S intersection.
Potential Improvements
42nd Avenue S at S 119th Street (looking north)
• 25 mph pavement markings — paint 25 mph pavement markings on southbound 42nd
Avenue S, south of S 115th Street and on northbound 42nd Avenue S, north of S 124th
Street.
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39
Segment north of
S 124th Street'
Segment south of
S 124th Street2
Street Classification
Collector Arterial
Collector Arterial
Speed Limit
25 mph
25 mph
Northbound Average Vehicle Speed
31 mph
25 mph
Northbound 85th Percentile Vehicle Speed
36 mph
30 mph
Southbound Average Vehicle Speed
31 mph
23 mph
Southbound 85th Percentile Vehicle Speed
36 mph
29 mph
Average Weekday Traffic Volume
3,900
9,300
Notes: 'Data collected 1/13/2022-1/22/2022 when 42nd Avenue S bridge over Duwamish River was closed.
2 Data collected August 2021.
42nd Avenue S runs along the east bank of the
Duwamish River with residential homes along the
east side of the street. There is a pedestrian bridge
crossing of the river at S 119th Street and the
Duwamish Park is located at approximately S 117th
Street. A continuous sidewalk runs along the east
side of the street between S 115th Street and
Interurban Avenue S, except for a missing segment
at the southeast corner of the S 124th Street/42nd
Avenue S intersection. The 42nd Avenue S corridor
experienced 10 crashes during the five-year study
period; of these crashes, 4 crashes occurred at the
S 124th Street/42nd Avenue S intersection.
Potential Improvements
42nd Avenue S at S 119th Street (looking north)
• 25 mph pavement markings — paint 25 mph pavement markings on southbound 42nd
Avenue S, south of S 115th Street and on northbound 42nd Avenue S, north of S 124th
Street.
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39
KPG
PSOMAS
• Curb bulb at S 119th Street pedestrian bridge crosswalk — construct a curb bulb and ADA
sidewalk improvements to shorten the pedestrian crossing distance and calm traffic.
• Sidewalk at southeast corner of S 124th Street/42nd Avenue S intersection — add sidewalk
to complete missing segment in front of store and create a continuous sidewalk on the east
side of the street between S 115th Street and Interurban Avenue S. This would impact the
store's parking lot.
50th Place S
Street Classification
Collector Arterial
Speed Limit
25 mph
Northbound Average Vehicle Speed
32 mph
Northbound 85th Percentile Vehicle Speed
36 mph
Southbound Average Vehicle Speed
33 mph
Southbound 85th Percentile Vehicle Speed
39 mph
Average Weekday Traffic Volume
7,300
Note: Data collected July and August 2021.
50th Place S connects between S 124th Street and S
129th Street. S 129th Street crosses the BNSF tracks
and 1-5, and is the southeast entrance to the Allentown
Neighborhood. 50th Place S serves residential
properties and Codiga Park along the Duwamish River.
There is a segment of sidewalk on the west side of the
street along the Park's frontage. The eastside of the
street has a striped paved shoulder that has a few
segments of extruded curb that provide separation
from vehicles.
Potential Improvements
50th Place S, looking south
• Northbound vehicle radar feedback sign — add a feedback sign at Railroad Avenue, where
50th Place S enters the Allentown Neighborhood.
• Pedestrian walkway — construct continuous pedestrian facility on either the west or east
side of the street.
Local Streets
Within the Allentown Neighborhood, the local streets are low-volume streets that provide access
to homes and businesses. These local streets typically do not include formal pedestrian facilities
and on -street parking is typically allowed.
Potential Improvements
• Additional speed limit signs at select locations.
• Reduce default speed limit from 25 mph to 20 mph for local streets — this could be part of a
proposed Citywide speed limit reduction effort.
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40
P S O M A S
51st Place S
Street Classification
Local Street
Speed Limit
25 mph
Northbound Average Vehicle Speed
17 mph
Northbound 85th Percentile Vehicle Speed
28 mph
Southbound Average Vehicle Speed
22 mph
Southbound 85th Percentile Vehicle Speed
31 mph
Average Weekday Traffic Volume
200
Note: Data collected July and August 2021.
51st Place S is a low-volume street that runs northwest and southeast between S 122nd Street and
dead ends just north of S 129th Street. This street provides access to homes and businesses.
Potential Improvements
• Speed limit reduction — reduce speed limits to 20 mph on local streets.
S 125th Street
S 125th Street is a local street along Duwamish River that connects between 46th Avenue S and
50th Place S. Residents along the street have expressed concerns regarding speeding and cut -
through traffic. There have been 3 crashes at the S 125th Street/50th Place S intersection over the
last 5 years. This intersection is just south of the S 124th Street/50th Place S intersection, which
has an eastbound right turn slip lane that does not require vehicles to stop.
Potential Improvements
• The removal of the eastbound right turn slip lane at the S 124th Street/50th Place S
intersection — this project (described above as a potential improvement for 5 124th Street)
would benefit the S 125th Street/50th Place S intersection by requiring eastbound right
turning vehicles to stop at the S 124th Street/50th Place S intersection. This would slow
southbound traffic and potentially create additional gaps in traffic approaching the 5 125th
Street/50th Place S intersection, improving traffic operations and safety.
• Either partially or fully close 5 125th Street at 50th Place S — work with the residents along
S 125th Street to get their input on either a full closure or a restriction of left turns with
c -curbing. The potential improvement at the S 124th Street/50th Place S intersection that
will remove the eastbound right turn slip lane may lessen the need for a partial or full
closure of S 125th Street.
• Speed cushions — work with residents to get their input on the addition of speed cushions
to reduce speeds. Speed cushions could be an appropriate treatment along this street
because there is not a parallel local street that could be impacted by diverting traffic.
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41
laCE*Cir
PS ?MAS
Appendix A.
Allentown Neighborhood Crash Data by Corridor — 5 Year Period
Corridors
Rear end
Sideswipe
Head On
Left Turn
v
C+�
a
Fixed Object
Exits Roadway
Pedestrian
Pedal -cyclist
L
5
O
73
ar
1-
42nd Ave S
3
1
4 (1)
1 (1)
1
10 (2)
S 124th St 1
1
1
2
2
1 (1)
1
8 (1)
50th PIS 2
1
1
2
4
46th Ave S
1
2
3
S 122nd St
1
1
2
S 125th St
1
1
2
S 115th St
1
1
S 116th St
1
1
45th Ave S
1
1
Total
2
1
1
6
5
11 (1)
1(1)
1 (1)
0
4
32 (3)
Source: WSDOT crash data from (9/10/2016 - 9/9/2021).
Notes: (#) indicates severe (fatality or serious injury) crashes.
1 Crashes at the 42nd Avenue 5/5 124th Street intersection are included with the 42nd Avenue S corridor.
2 Crashes at the S 124th Street/50th Place S intersection are included with 5 124th Street corridor.
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42
3/14/2022
Appendix B. Allentown Neighborhood Potential Improvements and Cost Estimates
KPG
PSOMAS
**AII costs are 2022 dollars
INITIAL IMPROVEMENTS
DESCRIPTION
COST
S 124th St
RRFB System at 44th Ave S / Community Center Driveway
Construct curb, gutter, and sidewalk at the northeast corner of
the 44th Avenue S intersection to separate pedestrians and
vehicles, narrow the pedestrian crossing distance, and provide
traffic calming.
$ 35,000
RRFB System at 46th Ave S
Construct curb, gutter, and sidewalk at the northwest corner of
the 46th Avenue S intersection to separate pedestrians and
vehicles, narrow the pedestrian crossing distance, and provide
traffic calming.
$ 35,000
POTENTIAL IMPROVEMENTS
DESCRIPTION
COST
S 124th St
Remove eastbound right turn slip lane at the 50th Place S
Intersection
Reconfigure the intersection with a single -lane eastbound
approach and all -way stop control. Evaluate truck turning
movements and pedestrian facilities. Requiring eastbound right
turn vehicles to stop will slow traffic and improve safety.
$ 75,000
124th North Side Pedestrian Walkway
Add/rehabilitate north side walkway from 49th Avenue S to 51st
Place Sin conjuction with the slip lane removal.
$ 150,000
S 115th St
Speed Limit Reduction
Replace the existing 30 mph speed limit signs with 25 mph
speed limit signs to lower speed entering the Allentown
Neighborhood and to be consistent with the speed limit on 42nd
Avenue S.
$ 2,000
42nd Ave S
25 MPH Pavement Markings
Install thermoplastic "25 MPH" pavement markings on
southbound 42nd Avenue S, south of S 115th Street and on
northbound 42nd Avenue S, north of S 124th Street.
$ 2,500
Curb Bulb at 5 119th St Pedestrian Bridge Crosswalk
Construct a curb bulb and ADA sidewalk improvements to
shorten the pedestrian crossing distance and calm traffic.
$ 30,000
Sidewalk at Southwest Corner of S 124th St/ 42nd Ave 5
Intersection
Add sidewalk to complete missing segment in front of store and
create a continuous sidewalk on the east side of the street
between S 115th Street and Interurban Avenue S. This would
impact the store's parking lot.
$ 75,000
50th Place S
Northbound vehicle radar feedback sign
Install a radar feedback sign at Railroad Avenue, where 50th
Place S enters the Allentown Neighborhood.
$ 10,000
Pedestrian Walkway
Construct continuous pedestrian facility on either the west or
east side of the street.
$ 110,000
51st Place S
Speed Limit Reduction
Replace the existing 25 mph speed limit signs with 20 mph
speed limit signs to lower speed on local streets.
$ 2,000
S 125th St
Closure of S 125th St at 50th PI S
Either a full closure or a restriction of left turns with c -curbing.
The potential improvement at the S 124th Street/50th Place S
intersection that will remove the eastbound right turn slip lane
may lessen the need for a partial or full closure of S 125th
Street.
$ 10,000
Speed Cushions
Install speed cushions to calm traffic on this local street. Speed
cushions could be an appropriate treatment along this street
because there is not a parallel local street that could be
impacted by diverting traffic.
$ 5,000
Total Cost
541,500.00
43
Staff Top -10 Recommended NTCP Projects
Modified 3/14/2022
44
Estimated Cost Budget/ Updated Cost
Project Details Potential Treatment Options Status
Range Expended Estimate
A Allentown Neighborhood Speed
and Safety Study
Since 2018, five individual requests for traffic calming have been recorded in the NTCP list of requests; however, traffic complaints have
been made to the City over prior years. Addressing traffic safety concerns in Allentown is a top priority for the City.
Draft Study complete. Present to
TISC on 3/21/22
$35,000b for A
and E
$640k for full
recommendation
$610k for new
Study neighborhood -wide volume, speed, classification
and safety issues. Design plan for Level 1 and Level 2
treatments throughout Allentown.
Level 1: Improved signage; radar feedback signs;
pavement marking modifications
Level 2: Curb extensions
$50,000-80,000
construction only
B Tukwila Elementary School
Since 2018, 12 traffic calming requests have been made in the Cascade View neighborhood, with a significant number of them near Tukwila
Have reached out to Tukwila School
Safety Improvements
Elementary School. Common complaints have been over speeding and crosswalk or pedestrian safety. Additionally, the Council has asked
District/Tukwila Elementary School
for proactively addressing or anticipating concerns, specifically around school zones. Some improvements have been made around Tukwila
staff. Will begin study later in 2022
Elementary School already but more improvements are needed.
with any improvements installed
Address speeding and crosswalk safety concerns.
Level 1: Improved signage; radar feedback signs;
pavement marking modifications
$30,000-80,000
likely in 2023.
Level 2: Curb extensions; RRFB installation; ADA ramp
upgrades: improved illumination
C Impact Charter School Safety
A request specific to the newly opened Impact Charter School was received in 2019. The request was to provide a signed school zone, which
Awaiting a proposed private
Improvements
Tukwila has provided along with signs marking school crossings on 5 148th Street. ADA -compliant ramps have not been installed at the
development for possible ADA ramp
marked school crossings. The charter school has expanded their site to the north with a need for consideration of a school zone on S 146th
improvement. Signage
Street and other potential improvements for children's safety. Additionally, the Council has asked for proactively addressing or anticipating
concerns, specifically around school zones.
improvements will be studied in
2/3Q
Provide school crossing improvements, establish school
zone on S 146th Street, if needed. Provide school crossing
improvements, observe operating speeds, if necessary
establish speed zone.
Level 1: Improved signage for school zones on S 148th
Street and S 146th Street; crosswalk installation
Level 2: ADA ramp improvements; curb extensions
$8,000-15,000
D Cascade View Elementary School
Since 2018, the Tukwila Hill neighborhood has seen 9 requests for traffic calming. Four of the locations are around the speeding, school
Study for improved signage and
Safety Improvements
crossing and pedestrian safety around the Cascade View Elementary School. 85th Percentile speeds of "30MPH in the 25MPH zones have
crosswalk to begin in 2/3Q. Design
been recorded, but analysis to separate whether the speeding is even more than the posted school zone has not been done. Additionally,
for ADA improvements later in year
the Council has asked for proactively addressina or anticioatina concerns, specifically around school zones.
with construction likely in 2023
Upgrade School Zone signing, design and install
pedestrian crossing improvements.
Level 1: Improved signage for school zones on S 148th
Street and S 146th Street; crosswalk installation
$8,000-15,000
Level 2: ADA ramp improvements; curb extensions
E Tukwila Community Center
The City Council has expressed desire for the NTCP to have a proactive element in addressing traffic calming and safety needs throughout
Design at 50% and RRFB units
$35,000b for A
$78k RRFB
Pedestrian Crossing Safety
the City. The TCC is a well -utilized facility by the Allentown neighborhood as well as the entire City and surrounding area. Concerns over the
purchased in 2021. Installation
and E
Installation
Improvements
pedestrian crossings on 5 124th Street have been raised by staff and residents in the past, along with the larger complaints of speeding in
scheduled for summer 2022.
Allentown. Increasina pedestrian visibility to improve safety
in this hiah-use area is a recommended top priority for the NTCP.
Design and install mid -block pedestrian safety
improvements on S 124th Street.
Level 1: Improve pedestrian crossing signage
Level 2: RRFB installations; upgrade ADA ramps; curb
extensions; improved illumination
$80,000-100,000
$47,000 RRFB
Purchase (2021)
F Macadam Road Speed and
At least five requests for traffic calming, specific to speeding (and some secondary reasons) have been made since 2018. A radar feedback
Design to begin in 2/3Q.
Safety Improvements
sign was placed near the 13700 block in 2019 but requests have continued to be made. Additional analysis is warranted to determine what
other improvements could be used to address the speeding, especially where Macadam has extremely limited sight distance due to the
curvy nature of the roadway.
Design and install treatments addressing speeding and
curve safety north of S 144th Street.
Level 1: Improved signage; LED chevron signs;
channelization modifications
$10,000 - 30,000
Level 2:
44
Staff Top -10 Recommended NTCP Projects
Modified 3/14/2022
45
Estimated Cost Budget/ Updated Cost
Project Details Potential Treatment Options Status
Range Expended Estimate
G Southcenter Boulevard/65th
Staff identified the need for improvement pedestrian safety at this location several years ago. Southcenter Boulevard is a 5 -lane roadway
Funding available for design of full
Avenue S Pedestrian Safety
with known speeding issues along with curves that restrict sight distance. A high pedestrian usage at this intersection accessing the King
signal in 2022 CIP. Design to begin in
Improvements
County Metro bus stop that services both the Rapid Ride F -Line and Route 150, both workhorses of the south County transit network,
2022. Will consider signage
justifies improving pedestrian crossing safety. This intersection is slated for full signalization in the future, but interim pedestrian safety
improvements should be considered sooner.
improvements for interim in 2/3Q.
Design and install pedestrian safety improvements
Level 1: Improved signage for pedestrian crossing
$50,000-$90,000
Level 2: RRFB installation; ADA ramp upgrades; improved
illumination
H City-wide Residential Speed Limit
As part of the City Council's expressed desire to proactively look at traffic calming needs, a full review of the residential street posted speed
Not started yet.
Review
limits is recommended by staff. State law establishes city speed limits at 25MPH unless an engineering study is completed to justify higher
speed limits. Most residential streets are posted at 25MPH today, but there are many that are posted at 30MPH or 35MPH. Likely, those
speed limits are legacies of past annexation areas, where a speed study was completed by King County. The general impression Staff has is
that most residents and elected officials would be happier with lower speed limits. City of Seattle has also recently lowered all speed limits
nenrhi rite-IA,irle to he 7SMPH
Identify residential streets with speed limits currently
above 25MPH. Conduct volume, speed and safety review.
Level 1: Modify speed limit ordinance; as needed; install
new signs; as needed.
$5,000-8,000
Recommend changes to speed limits, as necessary.
Level 2:
I S Ryan Way Pedestrian Safety
Two requests for traffic calming to address speeding and pedestrian crossing safety in the Ryan Hill area have been made in 2021. New
Study for improved signage and
Improvements
developments are coming forward that will increase the residential population of this part of the City with multi family developments. The
safety improvements may begin in
speed concerns, especially along S Ryan Way, coupled with the new housing developments increasing the likelihood of increased pedestrian
2/3Q. Construction of
activity, warrants this analysis be recommended as a top priority.
improvements possible in 2023.
Safety study on S Ryan Way from MLK Jr. Way to east city
limits, focusing on speeding and pedestrian safety.
Level 1: Improved signage
Level 2: Curb extension, improved illumination
$10,000-100,000
Recommend Level 1 and Level 2 improvements. Design
and construct improvements
J S 144th Street/46th Avenue S
The Tukwila School District requested school crossing safety improvements at this intersection in 2017. A new Rectangular Rapid Flashing
Design at 50% with construction to
$35,000 Overlay
$90,000
ADA Ramps
Beacon was installed in early 2019. At the time the RRFB was installed, the City was also submitting a grant application for the 46th Avenue
be done with the 2022 Annual
Budget
S Safe Routes to School project, which would improve pedestrian safety between this intersection south to S 150th Street, and would include
Overlay Project
either a raised pedestrian crosswalk at the RRFB or install ADA -compliant curb ramps. The grant was not awarded. State law requires ADA
ramps be brought up to current standards anytime a new signal, including the RRFB, is installed. Since grant monies for the larger
improvement are not expected in the short term, staff recommends this as a priority to comply with all state and federal laws regarding
dmorirnnc with ficnhilitioc Art ronuiromontc
Design and install ADA -compliant ramps at the
intersection.
Level 1:
Level 2: ADA upgrades to ramps at RRFB (not done at
time of RRFB installation due to budget constraints)
$15,000-20,000
$70,000 PE
Total Cost Range $266,000 - 538,000
Total $808,000
$47,000 Equip.
45
`- \.•_•. S
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Lake Washington
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RENTON
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8
Vicinity Map
King County
U:\PW Eng \GIS General Maps \Streets_11 x17_Sept2018.mxd
Date: 09/09/18 By: R. Linsao
Disclaimer:
The location of features and boundaries
are approximate and are intended for
reference only. Data is based on best
information available.
City of Tukwila
Allan Ekberg, Mayor
Pit be Works Deportment - Barr Ponnekanti, Director/City Engineer
INFORMATIONAL MEMORANDUM
TO: Transportation & Infrastructure Services Committee
FROM: Hari Ponnekanti, P.E., Public Works Director/ City Engineer
BY: Adam Cox, P.E., Transportation Project Manager
DATE: March 18, 2022
SUBJECT: 42nd Ave S Bridge Replacement Project -Type, Size, and Location Report
ISSUE
Update the Council and answer questions asked at the February 14, 2022 Committee of the Whole meeting regarding the Type,
Size, and Location (TS&L) report for the 42nd Ave S Bridge Replacement project and seek Council direction. Staff recommends
the 42nd Ave S steel girder alternative due to community feedback.
BACKGROUND
At the October 26, 2020 Committee of the Whole meeting, Council members were presented with the option to move the 42nd
Ave S Bridge Replacement project forward with the selection of 30% Plans and Estimate (P&E) or the 100% ad -ready Plans,
Specifications, and Estimate (PS&E). Included in the 30% P&E was a description of the TS&L report and the two conceptual
alternatives for the replacement of the 42nd Ave S Bridge:
1. Replace the bridge in its current location; or
2. Replace the structure at S 124th St.
Both alternatives are eligible for funding as the new structure will remain in the same corridor. On November 02, 2020, Council
directed staff to move forward with the 30% P&E as part of TranTech's original contract and re-examine alternatives for 100%
PS&E once additional funding was secured.
The intent of starting the 30% P&E was to make the replacement project more competitive for the federally funded Local
Bridge Program's (formerly known as BRAC) call for projects that was announced in late 2020, with the due date for the
application in February 2021. The City Council adopted funding for the 42nd Ave S Bridge as its top state and federal
legislative priority. In June 2021, the City was awarded $1.5M in federal contingency funding from the Puget Sound Regional
Council (PSRC) to be applied toward the design phase, and in July 2021, the Local Bridge Program awarded $12M for the
design and construction phases of the 42nd Ave S Bridge Replacement Project. These funds will cover all design expenses
and move the project well into construction.
Staff conducted the initial consultant selection process for the project in accordance with the Washington State Department of
Transportation (WSDOT) Local Agency Guideline (LAG) manual to ensure the selected consultant would be approved by
WSDOT and expenses would be eligible for federal grant reimbursement throughout the project. Given that federal protocol
was adhered to during the selection process, WSDOT Local Programs Department determined that TranTech is an approved
consultant to perform the design work without the need to readvertise or reinterview design consultants, a process that would
take a minimum of three months. The ability to move forward with 100% design through the existing contract with TranTech
provided the City with costs savings and prevented project delays. The supplemental agreement was issued to TranTech in
October 2021 to reach 100% ad ready PS&E enabling future construction bidding. The bid ready PS&E is still on schedule to
be completed by the third quarter of 2023.
HISTORICAL TIMELINE
2017
City applied for and did not receive state funding for local bridge replacement
2019
City applied for and did not receive state funding for local bridge replacement
2020
City adopts 42nd St. Bridge Replacement as top state and federal legislative priority
February 2020
Council approves $1 M for 30% design
May 2020
Advertisement for design is published
47
August 2020
TranTech Engineering, LLC selected
November 2020
Council Awarded 30% Design (Type, Size, Location) to TranTech
June 2021
PSRC Funds Awarded
June 2021
Local Bridge Program Funds Awarded
October 2021
Council Awarded 100% Design to TranTech
December 2021
Draft TS&L submitted for Public Works Engineers for Review
December 15, 2021
Bridge Strike
February 2022
Project included in the State Transportation Package for $17M in funding and is
currently being considered by the legislature
February 14, 2022
Committee of the Whole Discussion on TS&L report
March 21, 2022
TISC Discussion on TS&L report
As part of the 30% P&E, TranTech was tasked with creating a TS&L report to give the City alternatives for replacement of the
42nd Ave S Bridge. The TS&L report is an industry design standard that allows the agency to receive multiple alternatives and
weighs all outcomes when a selecting a structure for replacement. During the TS&L process, TranTech and its subcontractors
have used their best engineering judgement to create an accurate report that lines up with the City's best interests when
replacing the structure. All four alternatives presented are using the same cross section configuration with 12 ft wide travel
lanes, a concrete pedestrian barrier, and a 10 ft wide ADA -approved pedestrian walkway. The differences between the
structures are: 1) the structure location; and 2) material used for girders. All four alternatives are eligible for federal funding
and grants as they are in the same corridor as the current structure. All alternatives provided below have inherent pros and
cons and the comparison matrix found in the draft TS&L report illustrates all the weighted variables and provides a
professional rating of each element.
Due to the complexity of each replacement option and the limited scope of work in preparation of the TS&L, each option has
had a construability review at a cursory level. This allows the design team to explore multiple avenues without wasting time
focusing on one option that would not be the preferred structure for this project. There are still multiple unknowns that will be
investigated during the design process. Once a replacement is selected, TranTech can then focus their efforts to creating a
safe, dependable structure that has a design life of 100+ years.
The following alternatives to be considered for the 42nd Ave S Bridge replacement are:
• Alternative 1: New 42nd Ave S Bridge with Steel Girders
Replace the structure in its current location with the main span consisting of steel girders.
• Alternative 2: New 42nd Ave S Bridge with Concrete Girders
Replace the structure in its current location with the main span consisting of concrete girders.
• Alternative 3: New S 124th Street Bridge with Steel Girders
New structure at S 124th St with the main span consisting of steel girders.
• Alternative 4: New S 124th StreetBridge with Concrete Girders
New structure at S 124th St with the main span consisting of concrete girders.
ANALYSIS
Council was presented the four alternatives for the 42nd Ave S Bridge replacement at the February 14, 2022 Committee of the Whole
meeting. At that meeting, Council had the opportunity to ask City staff and TranTech Engineering staff technical questions about the
proposed locations of the 42nd Ave S and S 124th St replacement locations.
City staff also presented the same presentation at the February 22, 2022 Allentown meeting and gave the opportunity to have
community members ask questions regarding the bridge locations. Also at the Allentown meeting, a 3D model was present to allow
attendees to observe the 42nd Ave S and S 124th St alignments from multiple firsthand angles. Many comments and questions were
Phone; 2406-433-1800 Email.: Maytr TukwilaWA.gcv • Website: TukwiIMMA.gov
48
expressed during the Allentown meeting. The attached table has multiple questions asked by council and community. Please see
photographs with the questions/comments written down and posted onto the available boards at the community meeting.
PROPOSED NEXT STEPS
Public Works staff will continue to share and answer comments/questions regarding the 42nd Ave S Replacement and gather
additional feedback at the monthly Allentown Community Meeting on March 22, 2022 and other community outreach
meetings. City staff currently has a video and survey available on the City's website for Tukwila residents, businesses, and
daily users to give their feedback on the bridge location selection. City staff will return to Council at the March 28, 2022
Committee of the Whole with the results of the City wide survey and comments from the Allentown meeting to seek Council's
direction regarding the selection of the replacement option.
Ad ready 100% plans, specifications, and estimate (PS&E) is still on schedule to be completed in the 3rd quarter of 2023 with
obligation of construction funds in 2024. City staff will update to the Council after the construction bid results are obtained.
Project completion is still estimated in late 2025.
FINANCIAL IMPACT
Based on location preference, the final construction costs will vary. The difference between the 42nd Ave S steel girder alternative
and the 124th S St steel girder alternative is approximately $2,868,537 (approximately 12%). The Washington State Legislature
passed the $17 billion Move Ahead WA transportation package, which included $17 million for the replacement of the 42nd Avenue
Bridge. The City of Tukwila has also received funding from PSRC and the State Local Bridge program, totaling an additional
$13.5million. According to current engineering estimates, the City now has enough funds to complete the 42nd Avenue Bridge
replacement.
RECOMMENDATION
The attached TS&L triple bottom line matrix recommends the steel girder S 124th St as the preferred option. However, staff
recommends 42nd Ave S steel girder alternative due to community feedback. Staff seeks Council direction on the preferred
location of the 42nd Ave S/ 124th Street bridge replacement at the March 28, 2022 Committee of the Whole meeting.
ATTACHMENTS: 2021 CIP, Pg 9 Revised
Council Questions and Answer Presentation
Draft Type, Size, and Location Report
42nd Ave S and S 124th St Bridge Renderings
Phone; 206-433-18MO • Email: Mayor@TtikwillaWA.gov + Website: TukwilaWA.gov
49
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2021 to 2026
PROJECT: 42nd Ave S Bridge Replacement Project No. 91810404
DESCRIPTION: Design and construct a replacement structure for the existing 42nd Ave S Bridge near the Tukwila Community
Center. Council approved 30% design with City funding of $1 M in 2020, remaining scheduled in 2022.
JUSTIFICATION: The current bridge has a sufficiency rating of 7.6 (out of 100), is load restricted for AASHTO Type 3 trucks
and is structurally deficient. Truck speed was reduced to 15 mph in 2018.
In 2017 and 2019, Bridge Replacement Advisory Committee (BRAC) funding was submitted, but not awarded.
STATUS: Staff will apply for future BRAC funding during the next call. Applying for STP funding in 2020 for $1.5m for
design.
MAINT. IMPACT: New bridge.
STP funding has 13.5% match requirement. BRAC funding would be at 80% match for up to $12 million. Project
COMMENT: partners may include FMSIB & BNSF Railroad as they have over 1,800 trips a day on the 42nd Ave S Bridge
and it is the only ingress/egress available for their intermodal yard. Also State TIB for $3M.
FINANCIAL Through Estimated
(in $000's)
2019 2020 2021
2022 2023 2024 2025 2026 BEYOND TOTAL
EXPENSES
Project Location
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Design
19
200
878
248
2,355
3,700
Land (R/W)
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200
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Const. Mgmt.
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1,380
1,390
v
3,058
Construction
9,500
9,500
S St.
19,000
TOTAL EXPENSES
19
200
878
248
2,843
10,880
10,890
0
0
25,958
FUND SOURCES
Awarded PSRC Grant
248
1,252
1,500
Awarded WSDOT Grant
302
5,698
6,000
12,000
Proposed Grants
I
5,000
3,429
8,429
Solid Waste Utility Tax
650
700
700
710
720
549
4,029
City Oper. Revenue
19
200
228
(700)
589
(528)
741
(549)
0
0
TOTAL SOURCES
19
200
878
0
1,289
10,880
10,890
0
0
25,958
2021 - 2026 Capital Improvement Program
9
50
Project Location
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2021 - 2026 Capital Improvement Program
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50
City of Tukwila
42nd Ave S Bridge
Replacement
Update
March 2022
Questions and Answers from the 2/14 COW (1 of 6)
• Who makes the ultimate decision for bridge type and location?
• Council makes the decision for the replacement location
• Is an EIS study required for the 42nd Ave S Replacement?
• An EIS is not required for the bridge replacement. However environmental permits will be filed for the replacement.
• Would a traffic signal be placed at S 124th and 42nd Ave S intersection?
• A Traffic signal is not warranted at the S 124th St and 42nd Ave S intersection.
• Allentown Community has concerns about truck speed on S 124th.
• City staff will evaluate the traffic conditions and implement traffic calming in the Allentown Neighborhood.
• Bridge alternatives are not decided at the 2/14 COW?
• Correct, Council will only discuss bridge alternatives.
• Will the same information be shared at the next upcoming Allentown meeting
• Yes, same information will be presented at the Allentown meeting.
2 City of Tukwila 142nd Ave Bridge Replacement 52
Questions and Answers from the 2/14 COW (2 of 6)
• What do the scores on the matrix fully represent.
• City staff receive definitions from TranTech regarding the category and weighted numbers
• Will the Allentown meeting be advertised as 42nd Ave and S 124th?
• Yes, the project has been labeled 42nd Ave S and S 124th St replacement
• What is the cost difference between the most expensive and least expensive option?
• The difference is $4,453,879 or approximately 20% of the total amount.
• What material lasts longer, steel or concrete?
• Both steel and concrete have a 75+ year design lifespan.
• Why is Council being presented the different materials if both have the same life span?
• City staff wanted to present Council all the alternatives for the bridge replacement.
• Is the 500 -year flood verses the 100 -year flood all elevation based?
• Yes, the S 124 St bridge elevation is higher than the 42nd Ave S location.
3 City of Tukwila 142nd Ave Bridge Replacement 53
Questions and Answers from the 2/14 COW (3 of 6)
• Why was the 42nd Ave S Bridge constructed in the current location and not at S 124th St.
• The 42nd Ave S Bridge was constructed in 1949, with no evidence on why that location was selected
• What is the traffic flow at 42nd Ave S and Interurban Ave and S 124th St and Interurban Ave?
According to the traffic flow analysis, the current level of service (LOS), taken prior to the strike, at the intersection of
42nd Ave S and S 124th St is a "B" and the LOS at 42nd Ave S and Interurban Ave S is a "C". If the bridge is
replaced at 42nd Ave S (its existing location), the 2040 traffic calculations state that the LOS at 42nd Ave S and
124th Ave S would remain a "B" and the 42nd Ave S and Interurban Ave S would increase to a "D". If the bridge is
replaced at 124th Ave S, the projected LOS at S 124th and Interurban Ave is a "B" with a signalized intersection, and
LOS at 42nd Ave S and 124th Ave S would remain a "B". In this calculation, "A" is a better LOS and "D" is a worse
LOS.
• What is community's the feedback?
The Allentown community has indicated they prefer the 42nd Ave S alternative. City wide survey is available for
residence and users of the bridge to leave their feedback.
• Do not lose sight that the bridge replacement does not stop the truck reroute study.
Correct, this is the 42nd Ave S Bridge replacement project that runs parallel with the Allentown Truck Reroute
project.
4 City of Tukwila 142nd Ave Bridge Replacement 54
Questions and Answers from the 2/14 COW (4 of 6)
• What time was the 2/22/2022 Allentown meeting at?
• The Allentown meeting was conducted at 5:30 pm on 2/22/22 at the Tukwila Community Center.
• Can truck traffic be limited once new bridge is constructed?
•
The new structure will be constructed to the WSDOT Bridge Design Manual LRFD standards and without an
engineering study to illustrate the impacts to the infrastrucure from trucks, restrictions cannot be enforced.
• Can the City of Tukwila be involved with the selection process?
• Yes, residents can answer the survey posted on the City's website to provide feedback
• How far does the 42nd Ave S corridor extend?
• The 42nd Ave S corridor extends the length of 42nd Ave S and the new structure is required to connect Interurban
Ave to 42nd Ave S.
• Is 48th Ave outside of the current corridor?
• 48th Ave is not in the 42nd Ave S corridor.
• What is the length of the current structure and length of the future structure?
• The current 42nd Ave S Bridge has 220 ft main span. The proposed 42nd Ave S Bridge has a main span of 250 and
the S 124th St has a main span of 220 ft.
5 City of Tukwila 142nd Ave Bridge Replacement 55
Questions and Answers from the 2/14 COW (5 of 6)
• Will the old structure be used for the temporary bridge during construction of the new 42nd Ave
Bridge?
• The old superstructure could be used as the temporary structure during construction.
• How much additional space is needed to construct the S124th St bridge and which properties would
be affected?
• TranTech is providing cross sectional of the S 124th St and 42nd Ave S intersection.
• Will the property's at 42nd Ave S and S 124th St be impacted?
• There will be impact to property's during construction.
• Have the homeowners been contacted about the intersection?
• Properties owners have been contacted during the Allentown meeting.
• Will the Allentown meeting be virtual or in-person
• The Allentown meeting was in-person at the TCC on 2/22/22.
6 City of Tukwila 142nd Ave Bridge Replacement 56
Complete 3rd Quarter 2023
approx. 275 working days
42nd Ave S Steel
$24,372,157
75+ years
Questions and Answers from the 2/14 COW (6 of 6)
Item
Cost
Design life
Design Timeline
Construction Timeline
Seismic Design
Traffic Flow
Annual Maintenance Costs
Right-of-way
Rated for a 1,000 year
return event earthquake
Same traffic configuration
$2,000/year
City owned ROW
42nd Ave S Concrete
$25,957,499
75+ years
Complete 3rd Quarter 2023
approx. 275 working days
Rated for a 1,000 year
return event earthquake
Same traffic configuration
$1,000/year
City owned ROW
City of Tukwila 142nd Ave Bridge Replacement
S 124th Ave Steel
$21,503,620
75+ years
Complete 3rd Quarter 2023
approx. 253 working days
Rated for a 1,000 year return
event earthquake
New added signal at S 124th
and Interurban Ave
$2,000/year
City owned ROW and small
improvements to Northeast
and Southeast corners at S
124th and 42nd Ave S
Intersection
S 124th Ave Concrete
$22,962,950
75+ years
Complete 3rd Quarter 2023
approx. 253 working days
Rated for a 1,000 year return
event earthquake
New added signal at S 124th
and Interurban Ave
$1,000/yea r
City owned ROW and small
improvements to Northeast
and Southeast corners at S
124th and 42nd Ave S
Intersection
57
Is a Transportation Impact Analysis (TIA) required?
• A TIA is not required for this project as the new bridge structure does not generate new
or additional traffic. TIA's are required for new developments (I.E. shopping centers,
housing developments...) as traffic patters will change. The proposed replacement of
the 42nd Ave S Bridge will see the same traffic.
• A traffic analysis was performed as part of the TS&L and studied the level of service
(LOS) at the affected intersections with today's traffic volume and traffic volumes in
2040.
• Please refer to page 129 of the TS&L for the traffic analysis.
8 City of Tukwila 142nd Ave Bridge Replacement 58
2/22/2022 Allentown meeting
• Staff conducted an Allentown meeting on Tuesday, February 22nd at the Tukwila Community Center.
• A 3D model was present for attendees to visualize both alignments. Please see the photograph below of the 3D
model
• There were approximately 45 individuals that attended the Allentown meeting. The City received 27 votes for the
preferred location. Please see the next slides with total votes and comments left by attendees.
• Please see the next slides of input given at the Allentown meeting
9 City of Tukwila 142nd Ave Bridge Replacement 59
Input from the 2/22/2022 Allentown meeting
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10 City of Tukwila 142nd Ave Bridge Replacement
What else should we know?
60
Input from the 2/22/2022 Allentown meeting
Bridge Location — 42nd Ave S
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Pros
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Bridge Location — 42nd Ave S
Pros
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11 City of Tukwila 142nd Ave Bridge Replacement 61
Input from the 2/22/2022 Allentown meeting
Bridge Location — S 124th Street
TVA I C IPros
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Cons
12 City of Tukwila 142nd Ave Bridge Replacement
62
42nd Ave S Alignment
• Pros
.
.
•
Pros & Cons
Familiar traffic pattern
No impacts to private property
Allentown residents preferred option
• Cons
• Possible hydrological/scour issues
• Temporary structure during construction
required and impact to the splash park
• Most expensive option
S 124th Street Alignment
• Pros
•
•
•
Best hydrological placement and flood rating
Traffic control during construction
Least expensive option
• Cons
.
.
.
•
•
•
Unfamiliar traffic pattern
Potential impacts to private property
Allentown residents do not prefer this option
Residents feedback that the trucks will barrel
through 124th
Residents feedback that possible environmental and
wildlife disturbance
Adverse affects on the superette store
13 City of Tukwila 142nd Ave Bridge Replacement 63
Recommendation
Staff recommends 42nd Ave S steel girder
alternative due to community feedback.
42nd Ave S Bridge Renderings
42nd Ave S Bridge Elevation Looking North Rendering
42nd Ave S Bridge Elevation Looking North Rendering
65
S 124th Street Bridge Renderings
S 124th St Bridge Looking East Rendering
S 124th St Bridge Elevation Looking North Rendering
66