Stephen R. Holnbeck

• Sediment-transport investigations of the upper Yellowstone River, Montana, 1999 through 2001
• Estimation of unit hydrographs for large floods at ungaged sites in Montana
• Investigation of pier scour in coarse-bed streams in Montana, 2001 through 2007
• Method for rapid estimation of scour at highway bridges based on limited site data
• Procedures for estimating unit hydrographs for large floods at ungaged sites in Montana
• Rapid-estimation method for assessing scour at highway bridges based on limited site data