Criteria for Predicting Scour of Erodible Rock in West Virginia

The study will assess the scour potential of bridges founded on rock within West Virginia by selecting 15 existing bridge locations, with a minimum of one bridge located in each of the ten West Virginia Department of Highways (WVDOH) districts. The bridges under study will be selected in collaboration with WVDOH Project Monitors and will include sandstone, siltstone, claystone, shale, and limestone rock types. Determination of cumulative stream power, and rock characteristics from modified slake durability testing of collected samples, will be performed. Methodologies and test methods developed for the NCHRP Project 24-29, Scour at Bridge Foundations on Rock will be among those applied to the evaluation of rock and stream characteristics of West Virginia. The goal of the study will be to collect geologic and hydrologic data that is site-specific to West Virginia, study relationships between site hydraulics and rock scour, and develop models that can be used to more accurately predict rock scour at bridges. In addition, a map will be developed showing the areas within West Virginia that are more prone to scour. The map will indicate where scour potential exists and where scour is not known to be a problem. The map will be based primarily on the data collected and evaluated for the 15 bridge study sites. Scour potential for areas of the map where site-specific data is lacking will be based on reasonable extrapolation from site-specific data, existing geologic mapping, WVDOH records, and other data sources considered reliable.

Language

• English

Project

• Status: Completed
• Funding: $204884.00
• Contract Numbers:

  211222

• Sponsor Organizations:

  West Virginia Department of Highways

  1900 Kanawha Building East
  Charleston, WV  United States  25365
• Performing Organizations:

  Rahall Appalachian Transportation Institute

  Marshall University
  Huntington, WV  United States  25755
• Principal Investigators:

  Zatar, Wael

• Start Date: 20110331
• Expected Completion Date: 0
• Actual Completion Date: 20130930
• Source Data: RiP Project 28231

Subject/Index Terms

• TRT Terms: Bridge foundations; Bridges; Limestone; Rocks; Samples; Sandstones; Scour; Streamflow
• Geographic Terms: West Virginia
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 01515935
• Record Type: Research project
• Source Agency: Rahall Appalachian Transportation Institute
• Contract Numbers: 211222
• Files: UTC, RIP
• Created Date: Feb 26 2014 1:00AM