TY - RPRT TI - Level II scour analysis for Bridge 20 (BURKTH00560020) on Town Highway 56, crossing the East Branch Passumpsic River, Burke, Vermont AU - M.M. Serra AU - Timothy Severance PY - 1998 DO - 10.3133/ofr98555 UR - https://pubs.usgs.gov/publication/ofr98555 ID - ofr98555 ER -