TY - RPRT TI - Level II scour analysis for Bridge 23 (WALDTH00060023) on Town Highway 6, crossing Stannard Brook, Walden, Vermont AU - Michael A. Ivanoff AU - Robert E. Hammond PY - 1997 DO - 10.3133/ofr97674 UR - https://pubs.usgs.gov/publication/ofr97674 ID - ofr97674 ER -