Site work for a bridge / tunnel in Union, Washington. Completed plans call for site work for a bridge / tunnel.

Correct a fish passage barrier and stream alignment problem on Twanoh Creek at Twanoh State Park. The project will replace an existing bridge with a skewed 4-sided box culvert with wingwalls and remove an existing footbridge and foundation. Voluntary numerical MWBE goals of 10% MBE and 6% WBE have been established for this project. Achievement of the goals is encouraged. Bidders may contact the Office of Minority and Women's Business Enterprise to obtain information on certified firms. Washington State Parks reserves the right to accept or reject any or all proposals and to waive informalities. Technical questions regarding this project shall be directed to Arny Stonkus, P.E., Project Representative at (206) 349-3955, arny@wildfishconservancy.org, 15629 Main Street N.E., Duvall, WA 98019, or Sanh Ho, Project Representative at (360) 725-9757, sanh.ho@parks.wa.gov, 1111 Israel Road SW, Olympia, WA 98504-2650. Bidder Responsibility will be evaluated for this project. In determining bidder responsibility, the Owner shall consider an overall accounting of the criteria set forth in Division 00 Instructions To Bidders. Please direct questions regarding this subject to the office of the Engineer. ESTIMATED BID RANGE: $325,000 - $400,000 Project Description: This project proposes the removal of an existing vehicular bridge and an existing foot bridge and installation of a new culvert that will accommodate both vehicular and foot traffic for the access road crossing of Twanoh Creek leading to the Twanoh State Park campground. The streambanks will be bioengineered and replanted with native vegetation. Streambed gravel and boulder mix will be added to the stream channel. The culvert replacement is intended to improve fish passage and naturalize the alignment of the creek to improve natural sediment transport through the reach. WORK START: January 1, 2023 WORK END: December 31, 2023