CHANNEL SLOPE EFFECT ON PEAK DISCHARGE OF NATURAL STREAMS

THE "CHANNEL SLOPE METHOD" PROVIDES A REASONABLE APPROACH TO THE APPARENT NEED FOR A REASONABLE METHOD OF COMPUTING PEAK RUNOFF RATES FOR NATURAL STREAMS. STREAM RUNOFF DATA FROM THE U.S. GEOLOGICAL SURVEY WERE CORRELATED WITH THE SLOPE OF THE STREAM CHANNEL. THE DATA WERE PLOTTED ON LOGARITHMIC PAPER WITH STREAM CHANNEL SLOPE IN FT PER MILE AS ABSCISSA AND UNIT RUNOFF IN CUBIC FEET PER SECOND PER ACRE AS ORDINATE. A STRAIGHT LINE ENVELOPES ALL THE PLOTTED POINTS AND GIVES THE EQUATION OF THE UNIT RUNOFF FOR A PARTICULAR RECURRENCE INTERVAL. THE DESIGNER WHO MUST DETERMINE WATERWAY OPENINGS FOR BRIDGES OR CULVERTS OR DESIGN FLOWS FOR FLOOD PLAINS, CAN OBTAIN A CONSERVATIVE ANSWER TO THE PEAK DISCHARGE FOR A GIVEN RECURRENCE INTERVAL BY THIS METHOD. /ASCE/

• Supplemental Notes:
  • Vol 96, No HY2, PROC PAPER 7052, PP 307-315, 3 FIG, 1 TAB, 9
• Authors:
  • Armentrout, C L
  • Bissel, R B
• Publication Date: 1970-2

Media Info

• Serial:
  • Journal of the Hydraulics Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Calculation; Channels (Waterways); Design; Drainage; Equations; Flood plains; Peak fares; Runoff; Slopes; Streams; Waterways
• Uncontrolled Terms: Computation; Design criteria; Stream channels
• Old TRIS Terms: Discharge rate; Waterways (Watercourses)
• Subject Areas: Design; Highways; Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00204267
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 25 1970 12:00AM