7 Mile Bridge

PROJECT: Seven Mile Bridge Demolition
CLIENT: Walla Walla County Department of Public Works
TIMEFRAME: 10 Working Days to Complete
COST: $125K
ENGINEER: Walla Walla County
KEY PERSONNEL: 
• Sergio Sanchez, Project Manager
• Bob Bunker, Superintendent
• Josh Westergreen, Site Foreman

Subcontractors:
• Straight Line Concrete Sawing
• Kennewick Wa, Concrete Cutting
• Koncrete Industries, Rock Supplier

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 COMMUNICATION

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.