Area/Topic  |  Bibliography   |  Background   |  Home


 
 

KRIS Klamath : Picture Page

Area Lower Trinity/Basin-wide
Topic Tour: Restoration Horse Linto Creek #1 Gabion Weirs
 

hlrest2.jpg 65K  Click on image to enlarge (65K).

Horse Linto Creek photo taken in November 1980 showing a cobble-dominated stream channel lacking habitat complexity. This photo was taken prior to restoration projects being implemented. Horse Linto was substantially altered by the 1964 flood with the channel in an aggraded and monotypic condition. (The reach was designated "M" and was approximately 200 feet in length). Photo courtesy Six Rivers National Forest.


hlrest3.jpg 36K  Click on image to enlarge (36K).

The U.S. Forest Service began a program to increase fish habitat diversity in the early 1980's through installation of instream structures. The structure above is a gabion basket which is made of heavy duty wire material. Wire proved unsuitable for a high energy stream like Horse Linto and structures have subsequently been removed and replaced with large rock and wood material (see next Tour). Six Rivers National Forest photo taken during high water (78+00), February 1980.


hlrest9.jpg 53K  Click on image to enlarge (53K).

Horse Linto Creek gabion basket forming a weir. These structures tended to be broken up by large boulders in transport and experiments in their use for pool development and trapping spawning gravel took place from about 1982 to 1985. Photo taken in October 1982 (114+00). Note the clean spawning gravels trapped above the weir.


hlrest4.jpg 65K  Click on image to enlarge (65K).

This photo shows a gabion weir under construction with imported spawning gravels in October 1980. The white pipe provide fish passage for juvenile salmonids during the construction process. Photo courtesy of Lower Trinity Ranger District, Six Rivers National Forest.


hlrest5.jpg 49K  Click on image to enlarge (49K).

Six Rivers National Forest crews inspect gabion weir above Cedar Creek on Horse Linto Creek in February 1980. (69+00). Photo courtesy of Lower Trinity Ranger District, Six Rivers National Forest.


hlrest6.jpg 69K  Click on image to enlarge (69K).

Laying out the framework for gabion basket instream habitat structure on Horse Linto Creek in September 1980. Photo courtesy of Lower Trinity Ranger District, Six Rivers National Forest.


hlrest7.jpg 56K  Click on image to enlarge (56K).

Filling gabion baskets with cobble using a backhoe in August 1980. Photo courtesy of Lower Trinity Ranger District, Six Rivers National Forest.


hlrest8.jpg 98K  Click on image to enlarge (98K).

This aerial photo shows gabion weirs on Horse Linto Creek and was taken in October 1980. The photo was provided by Six Rivers National Forest, Lower Trinity Ranger District.




To learn more about this topic click Info Links
To view additional information (data source, aquisition date etc.) about this page, click Metadata
 
 
  www.krisweb.com