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Trap-efficiency study, Highland Creek flood-retarding reservoir near Kelseyville, California, water years 1966-77

Water Supply Paper 2182

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Abstract

This investigation is part of a nationwide study of trap efficiency of detention reservoirs. In this report, trap efficiency was computed from reservoir inflow and outflow sediment data and from reservoir survey and outflow data. Highland Creek Reservoir is a flood-retarding reservoir located in Lake County, near Kelseyville, California. This reservoir has a maximum storage capacity of 3,199 acre-feet and permanent pool storage of 921 acre-feet. Mean annual rainfall for the 14.1 square-mile drainage area above Highland Creek Dam was 29 inches during the December 1965 to September 1977 study period. Resultant mean annual runoff was 17,100 acre-feet. Total reservoir inflow for the 11.8 yea r study period was 202,000 acre-feet, transporting an estimated 126,000 tons (10,700 tons per year) of suspended sediment. Total reservoir outflow for the same period was 188,700 acre-feet, including 15 ,230 tons (1,290 tons per year) of sediment. Estimated trap efficiency for the study period was 88 percent, based on estimated sediment inflow and measured sediment outflow.

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Trap-efficiency study, Highland Creek flood-retarding reservoir near Kelseyville, California, water years 1966-77
Series title:
Water Supply Paper
Series number:
2182
Year Published:
1982
Language:
English
Publisher:
U.S. Geological Survey
Description:
iii, 15 p.
Time Range Start:
1965-10-01
Time Range End:
1977-09-30
Country:
United States
State:
California
City:
Kelseyville
Other Geospatial:
Highland Creek Flood-Retarding Resevoir
Online Only (Y/N):
N
Additional Online Files (Y/N):
Y