PROGRESS REPORT ON HYDROLOGIC INVESTIGATIONS OF SMALL DRAINAGE AREAS IN NEW HAMPSHIRE - PRELIMINARY RELATIONS FOR ESTIMATING PEAK DISCHARGES ON RURAL, UNREGULATED STREAMS

The magnitude and frequency of floods on rural, unregulated streams in New Hampshire with drainage areas between 0.27 and 622 square miles may be estimated from drainage area, main-channel slope, and a precipitation intensity index. Based on multiple-regression analyses of data from 59 gaged sites in New Hampshire and adjacent areas of bordering states, peak discharges for recurrence intervals of 2, 5, 10, 25, 50, and 100 years can be estimated.

• Supplemental Notes:
  • Prepared in cooperation with Federal Highway Administration, Washington, D.C., New Hampshire Dept. of Public Works and Highways, Concord and New Hampshire Water Resources Board, Concord.
• Corporate Authors:

  U.S. Geological Survey

  F Street Between 18th and 19th Street, NW
  Washington, DC    20244

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  New Hampshire Department of Public Works and Highways

  John O Morton Office Building, 85 London Road
  Concord, NH  United States  03301

  New Hampshire Water Resources Board

  37 Pleasant Street
  Concord, NH  United States  03301
• Authors:
  • LeBlanc, D R
• Publication Date: 1978-3

Media Info

• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Areas; Channels (Waterways); Crash investigation; Drainage; Drainage basins; Estimating; Floods; Flow; Hydrology; Magnitude; Mathematical models; Rainfall; Regression analysis; Regulations; Rural areas; Slopes; Streamflow; Streams; Studies; Watersheds; Weather forecasting
• Uncontrolled Terms: Flood frequency; Flood peaks; Rainfall intensity
• Geographic Terms: New Hampshire
• Subject Areas: Data and Information Technology; Highways; Hydraulics and Hydrology; Law; Safety and Human Factors;

Filing Info

• Accession Number: 00185932
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: USGS/WRD/WRI-78/048
• Files: TRIS, USDOT, STATEDOT
• Created Date: Dec 29 1996 12:00AM