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March 2018
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Vine Basin Combined Sewer Overflow (CSO)Control Project; SPU RFP/Contract# 18-007-S

Original Date Posted: March 9, 2018 7:30 am

Due Date: 2:00 PM, Friday, April 6, 2018

Request for Proposals (RFP) for

Vine Basin Combined Sewer Overflow (CSO)Control Project
SPU RFP/Contract# 18-007-S

Seattle Public Utilities (SPU) is requesting proposals from qualified engineering consulting firms for a new contract to support the Vine Basin CSO Control Project. SPU plans to select a consultant team to perform phased engineering consulting services. The three phases are Options Analysis, Design, and Engineering Support Services During Construction.  The initial phase will be comprised of Options Analysis and preliminary engineering. During Options Analysis, SPU anticipates evaluation of both grey (e.g. storage tank or pipe) and green (e.g. green stormwater infrastructure) solutions.  In accordance with SPU’s regulatory commitments, during this phase of work the project will need to develop and submit to Ecology a Draft Engineering Report by June 30, 2019.

The initial contract will cover Options Analysis only, and subsequent phases may be performed through amendment(s) to this contract assuming satisfactory performance by the consultant and as needed to supplement SPU staff. Amendments to the contract will only be requested upon successful completion of the Options Analysis phase and proposal of a design team with the expertise that meets SPU’s needs.  The cost of the first phase of this project has been estimated in the range of $500,000 to $600,000 and is expected to be completed in Q3 2019.  The ultimate total value of all phases of this contract is currently expected to be in the range of $2M to $3M and completed by Q4 2025. These costs are based on Class 5 estimates.

Interested consultants are encouraged to review the RFP, background documents, and any RFP addenda online at Note that you are required to complete a free registration to view, print or save documents posted on this website and to view contact information for other consultants who have downloaded documents from this website.

The deadline for submitting Proposals is 2:00 PM, Friday, April 6, 2018, at the 50th Floor, Seattle Municipal Tower, 700 Fifth Avenue, P.O. Box 34018, Seattle, WA 98104-4018.

SPU PRE-SUBMITTAL CONFERENCE: A pre-submittal conference will be held on Friday, March 16, 2018, in Conference Room SMT 4050/4060 (40th Floor) of the Seattle Municipal Tower Building, 700 Fifth Avenue, Seattle, WA 98104 from 2:00 PM – 4:00 PM. Seattle Public Utilities will review the scope of work, consultant expectations, and answer questions from the prospective bidders. Time will be allocated for prospective bidders to network with each other and discuss teaming arrangements. Although attendance at this meeting is not mandatory, attendance is highly encouraged.

Written questions related to this RFP are encouraged and shall be directed to Lisa Hill, Contract Administrator & SPU’s designated contact person, at . In order to facilitate preparation of responses to questions, please submit questions by no later than 3:00 PM on Friday, March 23, 2018. All responses to questions will be issued to all RFP recipients in the form of an addendum to this RFP. Addenda will be posted at

The City of Seattle is an Equal Opportunity Employer and selection of the Consultant is subject to applicable laws and ordinances regarding equal opportunity employment.


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