RFQ has been added to this posting on August 30, 2021. Please see document titled "Bosley Bridge 2020 Flood Repair RFQ" to view the RFQ.
The work to be performed by the CONSULTANT consists of preparing preliminary engineering design for emergency repairs to the Tucannon River banks which are adjacent to the Bosley Bridge abutments. The proposed improvements include repairing the 2020 flood erosion and placing erosion protection on the river banks. Bank repair and erosion protection may consists of segmented block wall retaining structures or other similar structures. This project has 0% UDBE goal. The major features of the project are as follows:
- Roadway excavation.
- Construction of segmented block wall retaining structures or similar structures.
- Placement of riprap material for bank armoring.
- Construction of roadway adjacent to the river bank work.
Columbia County reserves the right to retain the services of the successful firm(s) for any subsequent phases (R/W, CN) associated with this/these project(s).