TY - RPRT TI - Level II scour analysis for Bridge 24 (HARDTH00490024) on Town Highway 49, crossing Nichols Brook at Mackville Pond Outlet, Hardwick, Vermont AU - Scott A. Olson PY - 1996 DO - 10.3133/ofr96637 UR - https://pubs.usgs.gov/publication/ofr96637 ID - ofr96637 ER -