Tanana River Bridge

near Tok, AK

The Tanana River Bridge was a three span 941 foot long thru truss built at the beginning of World War II. Due to its age, condition and limited capacity a replacement bridge was completed in 2011. Shearer Design prepared a bridge removal study that identified several feasible ways that the Tanana River Bridge could be removed. The options included: reverse erection, explosive demolition of the supporting piers and explosive demolition of the piers and superstructure truss. The demolition study was used as supporting document for the project environmental permits. After the new bridge was constructed Shearer Design reviewed the contractor’s demolition plan for technical feasibility and compliance with the project permit requirements. We invite you to watch the exciting video of the bridge removal as the substructure is removed with explosives and the entire structure is dropped down onto the frozen river.


Railroad Bridge

Skagit County, WA

This former railroad bridge was donated for potential use as a Pedestrian & Bikeway Bridge to cross the Skagit River. Shearer Design prepared options and cost for removal of this combination swing span truss bridge.