Difference between revisions of "The 1965 Reservoir Equalization and Channel Cleaning Floods"

From Glen Canyon Dam AMP
Jump to: navigation, search
 
Line 55: Line 55:
 
17.6 million tons of fine sediment were scoured from the
 
17.6 million tons of fine sediment were scoured from the
 
reach between the Lees Ferry and Grand Canyon gaging
 
reach between the Lees Ferry and Grand Canyon gaging
stations (Rubin and Topping, 2001). [https://pubs.usgs.gov/pp/pp1677/pdf/pp1677.pdf Pages 46-47 ]
+
stations (Rubin and Topping, 2001). Pages 46-47 [https://pubs.usgs.gov/pp/pp1677/pdf/pp1677.pdf ]
 +
 
 +
[[File:1956BedElevation.jpg]] [https://www.yumaheritage.com/docs/2nd-A-1JackSchmidt_USU_LoganUT.pdf]
  
 
<!--
 
<!--
Line 79: Line 81:
 
|style="color:#000;"|
 
|style="color:#000;"|
  
*Topping et al. 2003.  Computation and analysis of the instantaneous-discharge record for the Colorado River at Lees Ferry, Arizona, May 8, 1921 through September 30, 2000: U.S. Geological Survey Professional Paper 1677, 118 p. https://pubs.usgs.gov/pp/pp1677/pdf/pp1677.pdf
+
*[https://www.yumaheritage.com/docs/2nd-A-1JackSchmidt_USU_LoganUT.pdf Unintended (and intended) consequences... Urban Waterfronts 2018]
 +
*[https://pubs.usgs.gov/pp/pp1677/pdf/pp1677.pdf Topping et al. 2003.  Computation and analysis of the instantaneous-discharge record for the Colorado River at Lees Ferry, Arizona, May 8, 1921 through September 30, 2000: U.S. Geological Survey Professional Paper 1677, 118 p. ]
  
 
|-
 
|-

Latest revision as of 09:23, 29 June 2018




--
--
--

Updates

The 1965 floods were designed to raise the elevation of Lake Mead reservoir and to scour the reach immediately below Glen Canyon Dam in order to increase the efficiency of the power plant at the dam, and were referred to informally by Bureau of Reclamation engineers as "channel cleaning flows" (Grams and others, Utah State University, written commun., 2002). During these 3 months of high discharge, approximately 5.0 million tons of fine sediment (that is, sand and finer material) were scoured from Glen Canyon between the dam and Lees Ferry (computed on the basis of the USGS daily suspended-sediment data from the Lees Ferry gaging station; U.S. Geological Survey, accessed November 15, 2000), and approximately 17.6 million tons of fine sediment were scoured from the reach between the Lees Ferry and Grand Canyon gaging stations (Rubin and Topping, 2001). Pages 46-47 [1]

1956BedElevation.jpg [2]

Links and Information


Projects


Presentations and Papers

Other Stuff