Development of a Methodology for Estimating Embankment Damage Due to Flood Overtopping

Details

• Creators:
  Chen, Yung-Hai ; Anderson, Bradley A.
• Corporate Creators:
  Simons, Li and Associates, Inc.
• Contributor:
  Jones, Sterling
• Corporate Contributors:
  United States. Federal Highway Administration. Office of Engineering and Highway Operations R&D ; United States. Department of Agriculture. Forest Service ; United States. Department of Agriculture
• Subject/TRT Terms:
  • Embankment foundations
  • Embankments
  • Erosion
  • Shear strain
  • Overtopping
  • Mathematical models
• Publication/ Report Number:
  FHWA-RD-86-126
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Contracting Officer:
  Jones, Sterling
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration
• Description:
  The objectives of this study are to conduct laboratory tests and develop a methodology to quantitatively determine embankment damage and assess protective measures. During the study, available literature and field data were collected. The embankments used 4n this study are 6 ft (1.8 m) high, 10 to 22 ft (3.0 to 6.7 m) in crest width, and 3 ft (0.9 m) in length, with slope varying from 2:1 to 3:1. The embankment surfaces include both with and without protective measures (pavement, grass, mattresses, Geoweb, soil cement, Enkamat, and others). The flood overtopping depths ranging from 0.5 to 4 ft (0.15 to 1.22 m), discharges ranging from 1 to 25 cfs/ft (0.1 to 2.32 cms/m) and tailwater conditions ranging from 10 percent water-surface drop to free fall. A computer model was developed to determine hydraulics of overtopping flow and associated erosion damage. This model was verified using field data and laboratory test results, and was utilized to generate charts for estimating embankment damage.
• Format:
  PDF
• Funding:
  DTFH61-82-C-00104
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/68406/dot_68406_DS1.pdf
• File Type:
  [PDF - 3.32 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:da4583b150427b39cae290281ad11d43fc1727689295d8a69c0d1843713ce764abbe45776a56e3d9e917584c41550ee0d905bb19a8cc3f77e1406875f4326fed