TY - RPRT TI - Estimates of bridge scour at two sites on the Virgin River, southeastern Nevada, using a sediment-transport model and historical geomorphic data AU - M.M. Hilmes AU - J. E. Vaill PY - 1997 DO - 10.3133/wri974073 UR - https://pubs.usgs.gov/publication/wri974073 ID - wri974073 ER -