Here's an update on the construction of the Animas-La Plata project from CBS4Denver.com. They write, "Animas-La Plata Project dam construction, which was closed down for the winter, is coming out of hibernation...
"Four feet of rock and soil that protected the clay core on the upstream side of the dam from freezing and thawing has been removed. Now, adding more clay, the Zone 1 fill, can continue. The precautionary earth coat averted fractures in the bank of clay that must be evenly compacted.
"Before construction was halted, the clay core and bulwarks of sand, gravel and boulders that form part of the structure had risen more than 30 feet above the bedrock bottom of the dam. The dam will rise 217 feet, with a crest 1,640 feet long.
"Construction continued through the winter, however, on the 1,400-foot outlet tunnel on the left abutment of the dam that will be used to release water. Some grouting to seal fissures was done on the left abutment during the down time.
"The dam will back up 120,000 acre-feet of water for three American Indian tribes and non-tribal water users. The lake that forms has been named Lake Nighthorse after retired U.S. Sen. Ben Nighthorse Campbell of Ignacio...
"The overall project is 32 percent to 34 percent complete and is on track to be done in 2010, Beck said. Specific percentage of completion for each component of the job is hard to estimate."
Category: Colorado Water