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7 Mile Bridge

Project:

Seven Mile Bridge Demolition

Client:

Walla Walla County Department of Public Works

Timeframe:

10 Working Days

Engineer:

Walla Walla County

Key Personnel:

  • Sergio Sa
  • Bob Bunker, Superintendent
  • Josh Westergreen, Site Foreman

Subcontractors:

  • AFS Shoring
  • Atlas One
  • Combined Construction Inc.
  • Central Washington Asphalt
  • Double T LTD Construction
  • Gilbert Patterson Concrete Inc.
  • Inland Crane
  • O’Bunco Engineering
  • Proline

Description:

Seven Mile Bridge off Mill Creek Road had been structurally compromised in the spring runoff event of 2020. Work was funded through FEMA and consisted of demolition and disposal of existing bridge superstructure excluding piers and abutments. In addition to demolition 120 tons of additional rip rap was installed to armor abutments.

Coordination and Commuincation:

Working with the Owner (WWC) along with Washington Department of Fish & Wildlife for Hydraulic Project Approval, permits, and the demolition plan, Nelson completed the project safely, on schedule a within budget.