TY - RPRT TI - Level II scour analysis for Bridge 6 (IRASTH00050006) on Town Highway 5, crossing the Black River, Irasburg, Vermont AU - Scott A. Olson PY - 1996 DO - 10.3133/ofr96193 UR - https://pubs.usgs.gov/publication/ofr96193 ID - ofr96193 ER -