Updating the Texas Rainfall Coefficients and Enhancing the EBDLKUP Tool: Technical Report

Currently, the Texas Department of Transportation (TxDOT) uses EBDLKUP-2015-V2.xls to estimate location-specific storm intensities for hydraulic design. This tool is based on storm frequency and duration data analyzed and summarized between 1998 and 2004. In 2019, the National Oceanic and Atmospheric Administration Atlas14 project released the results of new data on the depth, duration,and frequency of storms within Texas. This study describes methods and analyses to incorporate the new Atlas 14 data into TxDOT’s hydraulic design process. The outcome of the study is a new hydraulic design tool provisionally named EBDLKUP-2019. This tool improves the accuracy of statewide hydraulic design in two ways. First, it incorporates the latest information on the statewide spatial pattern of storms into the hydraulic design process. An analysis detailing how this spatial pattern has changed since the development of the previous tool is included in this report. Second, the tool improves the spatial accuracy of rainfall intensity predictions to subcounty rainfall zones. An analysis detailing the derivation of these subcounty rainfall zones is also provided in the report.

• Record URL:
  • https://static.tti.tamu.edu/tti.tamu.edu/documents/0-6980-R1.pdf
• 
• Summary URL:
  • https://rosap.ntl.bts.gov/view/dot/66124
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/54664
• Corporate Authors:

  Texas A & M University

  College Station, Texas  United States 

  Texas Transportation Institute

  Texas A&M University
  College Station, TX  United States 

  Texas Department of Transportation

  Research and Technology Implementation Office
  125 E 11th Street
  Austin, TX  United States  78701-2483

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Birt, Andrew
  • 0000-0002-3141-1377
  • Gu, Chaoyi
  • Huch, Robert
  • Walubita, Lubinda F
• Publication Date: 2019-12

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Technical Report
• Features: Appendices; Figures; Maps; References; Tables;
• Pagination: 100p

Subject/Index Terms

• TRT Terms: Drainage; Floods; Hydraulic structures; Hydraulics; Rainfall; Roads; Spreadsheets; Storms; Structural design
• Identifier Terms: Texas Department of Transportation; U.S. National Oceanic and Atmospheric Administration
• Geographic Terms: Texas
• Subject Areas: Bridges and other structures; Design; Environment; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 01732108
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-20/0-6980-R1, Report 0-6980-R1
• Contract Numbers: Project 0-6980
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Feb 26 2020 11:13AM