thumbnail

Channel-pattern and cross-section changes in selected reaches of Elkhead Creek, northwestern Colorado, 1938-2009

Scientific Investigations Report 2011-5201

Prepared in cooperation with the Colorado River Water Conservation District
By:
and

Links

Abstract

Elkhead Creek near Craig, Colorado, is a sinuous, meandering stream whose lower 9 river miles have been regulated by Elkhead Reservoir and Dam since 1974. The U.S. Geological Survey, in cooperation with the Colorado River Water Conservation District, conducted a study from 2009 to 2010 that evaluated channel-pattern and cross-section changes and identified possible causes of streambank erosion in Elkhead Creek that could have been affected by Elkhead Dam and Reservoir. Aerial photographs taken from 1937 through 2009, streamflow records from water years 1953 through 2009, and channel surveys and sediment measurements made in 1997 and 2009 were used to analyze streambed and streambank erosion both downstream and upstream from the reservoir. Erosional trends were evaluated by calculating meander migration rates determined from analyses of georectified aerial photographs and from replicate channel surveys at monumented cross sections established in a previous study. The aerial photography dates defined four periods of roughly equal lengths for which mean meander migration rates were determined. Two periods were prior to and two periods were after Elkhead Reservoir was constructed.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Channel-pattern and cross-section changes in selected reaches of Elkhead Creek, northwestern Colorado, 1938-2009
Series title:
Scientific Investigations Report
Series number:
2011-5201
Year Published:
2012
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Colorado Water Science Center
Description:
iv, 21 p.
Time Range Start:
2038-01-01
Time Range End:
2009-12-31
Country:
United States
State:
Colorado
City:
Craig
Other Geospatial:
Elkhead Creek
Online Only (Y/N):
Y