Bridge No. 4901 | County Road Project C3237 Project Type: Deck Rehabilitation Project Manager: Michael Duke Jr., P.E. Design Year: 2018 Construction Year: 2019 Contractor: Wesslen Construction, Inc.
The Elk-Chattaroy Road bridge is located on Elk-Chattaroy Road approximately three miles east of Highway 2 in north Spokane County, Section 17, T 29N, R 44E, WM. The bridge, which crosses the Little Spokane River, was constructed in 1962 and was posted with weight restrictions. Approximately 31 percent of the deck surface was spalled and delaminated with areas of exposed reinforcing steel. This significant deterioration in the bridge deck prompted the County to apply for and receive a federal grant in 2017 to rehabilitated the bridge deck.
The rehabilitation included removing the top layer of the deck down to a minimum of three inches and replacing the top reinforcing steel with epoxy coated reinforcement with a new concrete overlay. The asphalt approaches were raised to match the new deck elevation. Additional work included removing the existing approach material at each end of the bridge and replacing the approaches with structural earth wall and riprap to stabilize the approach embankments and prevent scour and erosion. A temporary traffic detour was in place during construction which routed traffic to Deer Park-Milan Road and Milan-Elk Road.
The rehabilitation took approximately two months and the bridge was opened to traffic in September 2019. It was funded by the Federal Highway Administration (FHWA).