GeoMetrix was retained by Alberta Transportation as the prime consultant on the replacement of BF86321 culvert on Highway 2:54 near High Prairie, AB. This crossing consists of four 1.2m diameter CSP culverts. All four existing culverts were demonstrating signs of being under-capacity due to evidence of overflow. This project is currently in the Preliminary Design phase. GeoMetrix is currently evaluating three different alternatives to rectify the problem: 1) salvage and repair (i.e. do not improve the hydraulic opening), 2) replace the north set of culverts with a precast concrete bridge consisting of nine SLC-510 precast concrete girders spanning 10.0 m, and 3) replace the north set of culverts with a 3.6 m wide x 2.4 m high x 28.0 m long precast concrete box culvert.