Holden Natural Drainage System (NDS) (RE-BID)

Project Description: This Project will provide water quality treatment for street runoff by retrofitting the roadsides with bioretention treatment systems. This Project consists of the following elements of Work including but not limited to: construction stormwater erosion control (submittal, implementation, and maintenance of the Construction Stormwater Pollution Prevention plans (CSECP/SWPPP, TVSPP, SP, & TDP)); health and safety plan; clearing and grubbing; demolition and removal of existing surface pavement, sidewalks, and curbs; excavation; temporary traffic control plan and implementation, including flagging; site preparation and staging; survey; removal and abandoning existing drainage structures and piping; dewatering; temporary stormwater bypass; protection, relocation, and/or adjustments of existing utilities, including water and gas services; reconnection to the existing drainage system; installation of new surface drainage systems, including storm drainage piping, drainage structures, bioretention cells, and modular structural soil cell tree facilities; flow testing; assist SPU crews with water service and meter box relocations/adjustment; television inspections; and final site restoration, including surface paving, pavement markings, sidewalks, curbs, driveway, curb ramps, final planting, and landscape construction.

Engineer's Estimate: $1,178,000.00

Project Location: This Project is located in the City of Seattle (COS) on SW Holden St between 16th Ave SW and 18th Ave SW.

Project Details

• Reference ID: PW#2024-051 (RE-BID)
• Department: Public Works
• Department Head: Mark Nakagawara (Deputy Division Director)

Addenda

• Official Notice #1: Official Notice #1: Pre-Bid Meetings (released 2026-04-09T21:20:59.574Z) —

  Attendance and Minutes

• Official Notice #2: Bidder Q/A (4-15-26) (released 2026-04-16T00:18:12.008Z)

Evaluation Criteria

• Summary —

  Project Description: This Project will provide water quality treatment for street runoff by retrofitting the roadsides with bioretention treatment systems. This Project consists of the following elements of Work including but not limited to: construction stormwater erosion control (submittal, implementation, and maintenance of the Construction Stormwater Pollution Prevention plans (CSECP/SWPPP, TVSPP, SP, & TDP)); health and safety plan; clearing and grubbing; demolition and removal of existing surface pavement, sidewalks, and curbs; excavation; temporary traffic control plan and implementation, including flagging; site preparation and staging; survey; removal and abandoning existing drainage structures and piping; dewatering; temporary stormwater bypass; protection, relocation, and/or adjustments of existing utilities, including water and gas services; reconnection to the existing drainage system; installation of new surface drainage systems, including storm drainage piping, drainage structures, bioretention cells, and modular structural soil cell tree facilities; flow testing; assist SPU crews with water service and meter box relocations/adjustment; television inspections; and final site restoration, including surface paving, pavement markings, sidewalks, curbs, driveway, curb ramps, final planting, and landscape construction.

  Engineer's Estimate: $1,178,000.00

  Project Location: This Project is located in the City of Seattle (COS) on SW Holden St between 16th Ave SW and 18th Ave SW.

• Important Instructions for Electronic Submittals —

  The City of Seattle is accepting electronic bid submissions. Bidders shall create a FREE account with OpenGov Procurement by signing up at https://procurement.opengov.com/signup. Once you have completed account registration, browse back to this page, click on "Draft Response", and follow the instructions to submit the electronic bid.

• Timeline —

  Release Project Date:	April 1, 2026
  Pre-Bid Site Meeting #1 (Mandatory for Bidders to attend at least one of the two pre-bid site meetings):	April 7, 2026, 10:00am Intersection of SW Holden St and 16th Ave SW
  Pre-Bid Site Meeting #2 (Mandatory for Bidders to attend at least one of the two pre-bid site meetings):	April 9, 2026, 10:00am Intersection of SW Holden St and 16th Ave SW
  Question Submission Deadline:	April 16, 2026, 5:00pm
  Bid Open Date:	April 22, 2026, 2:00pm

• Scope of Work or Project Details —

  Please see the Attachments section for specifications and attachments.

• Project Contact —

  Kai Fan

  Senior Civil Engineer

  700 5th Ave, Suite 4900

  Seattle, WA 98124

  Email: kai.fan@seattle.gov

  Phone: (206) 684-5942

• Procurement Contact —

  Gina Owens

  Sr. Construction Contracts Specialist

  700 5th Avenue, Suite 4350

  Seattle, WA 98124

  Email: gina.owens@seattle.gov

  Phone: (206) 684-7251

Submission Requirements

• Proposal Submittal (required) —

  Please upload your complete proposal response excluding pricing.

  • Bidder is responsible for integrity of the file to be uploaded
  • Verification of uploaded file integrity can be confirmed by clicking on the upload file.
• Bid Forms (required) —

  Please upload a PDF of the forms provided by the Owner that must be submitted with the Bid.

  Please upload a SINGLE PDF.

  • Bidder is responsible for integrity of the file to be uploaded
  • Verification of uploaded file integrity can be confirmed by clicking on the upload file.
• Bid Guarantee (required) —

  Please upload an electronic scan of your Bid Bond or Cashier's Check. 

  • Bidder is responsible for integrity of the file to be uploaded
  • Verification of uploaded file integrity can be confirmed by clicking on the upload file.
• Will this solicitation be awarded based on Evaluation Criteria/Committee? (required)