Analysis of Historical and Future Heavy Precipitation: City of Virginia Beach, Virginia

This report summarizes changes in heavy rainfall frequency and intensity within the Virginia Beach area using historical observations and bias-corrected future projections. In addition, a comprehensive evaluation of three heavy rainfall events that were responsible for flooding in the City of Virginia Beach during 2016, and comparison to regional Probable Maximum Precipitation estimates is provided. Finally, the authors provide a review of rainfall design guidance in the context of non-stationarity and future conditions. Based on the analyses and findings within the report, subsequent discussions with City engineers, as well as subject matter expertise, the authors recommend that the City increase design rainfall intensities by 20% to account for already occurring and/or future increases in heavy rainfall. This report presents the findings that support this recommendation.

• Record URL:
  https://www.vbgov.com/government/departments/public-works/comp-sea-level-rise/Documents/anaylsis-hist-and-future-hvy-precip-4-2-18.pdf
• 
• Corporate Authors:

  City of Virginia Beach

  Department of Public Works
  Virginia Beach, VA  United States 

  Dewberry

  8401 Arlington Boulevard
  Fairfax, VA  United States  22031
• Authors:
  • Smirnov, Dmitry
  • Giovannettone, Jason
  • Lawler, Seth
  • Sreetharan, Mathini
  • Plummer, Joel
  • Workman, Brad
• Publication Date: 2018-3-26

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Maps; References; Tables;
• Pagination: 97p

Subject/Index Terms

• TRT Terms: Analysis; Floods; Forecasting; History; Rainfall; Recommendations; Trend (Statistics)
• Geographic Terms: Virginia Beach (Virginia)
• Subject Areas: Environment; Planning and Forecasting; Transportation (General);

Filing Info

• Accession Number: 01696720
• Record Type: Publication
• Report/Paper Numbers: CIP 7-030, PWCN-15-0014, Work Order 9A
• Files: TRIS
• Created Date: Feb 28 2019 4:37PM