TY - RPRT TI - Level II scour analysis for Bridge 23 (CRAFTH00390023) on Town Highway 39, crossing the Black River, Craftsbury, Vermont AU - Erick M. Boehmler PY - 1997 DO - 10.3133/ofr97217 UR - https://pubs.usgs.gov/publication/ofr97217 ID - ofr97217 ER -