TY - RPRT TI - Level II scour analysis for Bridge 19 (CHARTH00390019) on Town Highway 39, crossing Mad Brook, Charleston, Vermont AU - Erick M. Boehmler AU - Robert E. Hammond PY - 1997 DO - 10.3133/ofr97212 UR - https://pubs.usgs.gov/publication/ofr97212 ID - ofr97212 ER -