TY - RPRT TI - Level II scour analysis for Bridge 50 (FFIETH00490050) on Town Highway 49, crossing Black Creek, Fairfield, Vermont AU - S.A. Olson AU - Laura Medalie PY - 1998 DO - 10.3133/ofr98418 UR - https://pubs.usgs.gov/publication/ofr98418 ID - ofr98418 ER -