TY - RPRT TI - Level II scour analysis for Bridge 49 (FFIETH00290049) on Town Highway29, crossing Black Creek, Fairfield, Vermont AU - Scott A. Olson PY - 1997 DO - 10.3133/ofr97391 UR - https://pubs.usgs.gov/publication/ofr97391 ID - ofr97391 ER -