Cost effective and safe highway bridge designs are required to ensure the long-term sustainability of Virginia’s road systems. The streamflows that, over time, scour streambed sediments from bridge piers inherently affect bridge safety and design costs. To ensure safety, bridge design must anticipate streambed scour at bridge piers over the lifespan of a bridge. Until recently Federal Highway Administration (FHWA) guidance provided only for scour estimates of granular, noncohesive, highly erosive material yielding overestimates of scour potential in instances when streambed materials offer some resistance to scour. This study seeks to estimate stream power and streambed scour for these more resistive sites, with bridge piers potentially established in cohesive soil or erodible rock. This new knowledge may provide significant construction cost savings while ensuring design and construction of safe highway bridges.
Austin, S.H., 2018, U.S. Geological Survey - Virginia Department of Transportation: Bridge scour pilot study: U.S. Geological Survey Fact Sheet 2018–3006, 2 p., https://doi.org/10.3133/fs20183006.
ISSN: 2327-6932 (online)
ISSN: 2327-6916 (print)
Table of Contents
- Purpose of the Study
- Study Deliverables
|Publication Subtype||USGS Numbered Series|
|Title||U.S. Geological Survey - Virginia Department of Transportation: Bridge scour pilot study|
|Series title||Fact Sheet|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||Virginia Water Science Center|
|Online Only (Y/N)||N|
|Additional Online Files (Y/N)||N|
|Google Analytic Metrics||Metrics page|