TY - RPRT TI - Level II scour analysis for Bridge 57 (CHESTH00090057) on Town Highway 9, crossing Chase Brook, Chester, Vermont AU - S.A. Willoughby AU - R.L. Burns PY - 1997 DO - 10.3133/ofr97823 UR - https://pubs.usgs.gov/publication/ofr97823 ID - ofr97823 ER -