TY - RPRT TI - Level II scour analysis for Bridge 27 (ANDOTH00290027) on Town Highway 29, crossing Middle Branch Williams River, Andover, Vermont AU - Ronda L. Burns AU - Emily C. Wild PY - 1997 DO - 10.3133/ofr97225 UR - https://pubs.usgs.gov/publication/ofr97225 ID - ofr97225 ER -