HomeMy WebLinkAbout24-062 - Otak Inc - Riverton Creek Flapgate Removal Construction Management24-062
Contract Number:
City of Tukwila
Council Approval N/A
6200 Southcenter Boulevard, Tukwila WA 98188
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 Ðthe CityÑ, and OTAK, INC., hereinafter referred to as Ðthe ConsultantÑ, in consideration
of the mutual benefits, terms, and conditions hereinafter specified.
1.Project Designation. The Consultant is retained by the City to perform construction
engineering services in connection with the project titled Riverton Creek Flapgate Removal
Project.
2.Scope of Services. The Consultant agrees to perform the services, identified on Exhibit ÐAÑ
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, 2024, 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, 2024 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
ÐBÑ attached hereto, provided that the total amount of payment to the Consultant shall not
exceed $25,000.00 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 ConsultantÓs 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.
DATED this 31 st day of May , 20 24
CITY OF TUKWI
DS
DocuSigned by:
plots 114-61/4
`--- a -E-24 8454584A C...
Thomas McLeod, Mayor 5/31/24
Attest/Authenticated:
DocuSigned by:
3 GJA4AB.a7-4-6F-. A4-E 8 .. .
City Clerk, Andy Youn
CONSULTANT
By:
Printed Name: Russell Gaston
Title:
Approved as to Form:
DocuSigned by:
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Office of the City Attorney
CA revised May 2020
Page 5
EXHIBIT A
SCOPE OF WORK
DESIGN/ENGINEERING SERVICES
City of Tukwila
Riverton Creek Flapgate Removal
OTAK Project No. 32740.002
February 2024
Introduction and Background
th
LOCATION: 3225 S 116 St
DESCRIPTION: Otak previously worked on a contract with the City to provide design and construction
support services for the Riverton Creek Flapgate Removal project. The scope discussed in this document
is to provide additional construction engineering support services for contractor correction of tieback wall
retrofit. The task numbering in this scope was developed to match the task numbering from the previous
contract for continuity in project management.
SCHEDULE: The anticipated project schedule is to have notice to proceed in February 2024 with
Construction closeout for additional construction support to occur by June 30, 2024.
The Scope of Services is described in detail in the following sections.
Scope and Budget Modifications
10.0 Construction Observation Support
10.3 Construction Revision Support
10.3.A Construction Revision Engineering Support
Otak will provide additional construction support services to include on-site observation of tieback wall
repairs. Repairs are assumed to include removing and reinstalling anchor cover plates, removal of
portions of existing paint, preparation of wall surface for painting, and painting the wall. While cover plates
are removed, Otak will observe the condition of visible portions of anchors and backfill, and advise the
City of actions needed, if any, prior to replacing the cover plates. A summary of site observations will be
emailed to the City within five (5) working days of the observation. After completion of the wall repairs,
Otak will edit the previous memo titled ÐRiverton Creek-Tieback Wall and Existing Concrete Wall Post-
Construction ConditionÑ, addressing WSDOT comments to include a summary of the wall repairs. A draft
1
otak
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Scope of Work
Continued
memo will be sent to the City for review and for forwarding to WSDOT for review. The final memo will
address comments from the City and WSDOT and will be stamped and signed by an Engineer licensed in
the State of Washington.
10.3.B Construction Revision Testing Services
If requested, Terracon Testing will be engaged as a direct cost vendor to provide verification testing for
paint thickness, structural welding, and grout testing.
Task 10.3 Deliverables
¤ Review comments on ContractorÓs wall repair plan submittal (email)
¤ Site observation summaries (email)
¤ Draft and final memo summarizing wall repairs and addressing previous WSDOT comments (PDF via
email)
Task 10.3 Assumptions
¤ Contractor will prepare a Wall Repair Plan submittal for review by Otak and WSDOT (consider
reference to correcting defective work)
¤ The City will continue to provide Construction Administration such as management of submittals and
primary correspondence with the Contractor and WSDOT.
¤ Up to four (2) days of site observation (8 hours per day)
¤ WSDOT will provide one round of comments on the draft wall memo.
Direct Expenses
Direct expenses to be submitted for reimbursement include:
¤ Mileage/Travel for site investigations and meetings
¤ Testing vendor costs (Testing Vendor: Terracon)
2
Otak
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Exhibit B - Fee Estimate
City of Tukwila - Riverton Creek Flapgate Removal
Otak, Inc., Project 32740.002
February 2024
Task Description
10.0 Construction Observation Support
Structural
Admin
Total Hours
(Otak)
Total Fee by
Task (Otak)
Total Fee (Team)
X
U
X
U
Project
Coordinator
Otak Direct
Costs
Terracon
Testing
10.3 Construction Revision Support
9
43
3
$12,230
$12,500
$ 24,730
Project Management and Internal and
External Coordination/Meetings
8
12
3
Review contractor repair plans
Site Observations
Site observation write-ups
4
16
3
Final wall memo - draft and final
1
8
Project Total Hours
9
43
3
55
Billing Rate (including OH and Profitr
Total Labor Cost, including Overhead and Profit
$230.00
$ 2,070
$230.00
$ 9,890
$89.82
$ 270
$ 12,230
$ 12,230
Direct Expenses
Management Reserve Contingency
$ 200
$12,500
$ 12,700
Project Total Rounded (Amendment No. 9)
I
$ 25,000
(1) Billing rates may vary based on the actual staff performing the work.
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