Snake Lake Bridge over Spanish Creek is a single-lane, clear span steel pony truss with high abutment walls comprised of precast concrete panels with tieback anchors and was constructed in 1969. The County has obtained funding through the Federal Highway Bridge Program (HBP) to replace the bridge. Work is currently underway to determine the replacement bridge configuration.
Need for the Project
The existing bridge was classified as structurally deficient by Caltrans as a result of their biannual inspection. The panels comprising the abutment wall were identified as having failed. The superstructure of the bridge was coded as being in a serious condition, indicating deterioration affecting primary structural components. The crossing is currently posted for a truck speed limit of 15 MPH. The bridge provides access to U.S. Forest Service and private lands east of the unincorporated community of Meadow Valley. The new bridge will enhance traffic safety and improve conditions in Spanish Creek by providing an increased flow area.
The replacement bridge is proposed as a two-lane, single span structure 80 to 120 feet in length. The project will also include limited stream bank modification in order to improve in stream channel and reduce the potential for scour at the bridge site.