Ralston Dam

Ralston Dam (National ID # CO00205) is a dam in Jefferson County, Colorado.

The earthen dam was constructed in 1937 by the Denver Board Of Water Commissioners, with a height of 204 feet, and a length of 1170 feet at its crest.[1] It impounds Ralston Creek for municipal water supply for the city of Denver. The dam is owned and operated by the Denver Board Of Water Commissioners.

The reservoir it creates, Ralston Reservoir, has a normal water surface of 160 acres, has a maximum capacity of 15,900 acre-feet, and a normal capacity of 13,200 acre-feet.[2] In 2010 officials discovered that the defunct Schwartzwalder uranium mine was contaminating groundwater near the reservoir, with concentrations of uranium some 1000 times the human health standard.[3] The proposed cleanup involves rerouting Ralston Creek.[4]

References

  1. ↑ http://ce-npdp-serv2.stanford.edu/DamDirectory/DamDetail.jsp?npdp_id=CO00205
  2. ↑ http://findlakes.com/ralston_colorado~co00205.htm
  3. ↑ Finley, Bruce. "Defunct uranium mine contaminating groundwater near reservoir". Denver Post.
  4. ↑ Grenoble, Ryan (2012-03-06). "Radioactive Mine Cleanup? Nah, Just Move The Creek". Huffington Post.

Coordinates: 39°50′00″N 105°14′27″W / 39.83334°N 105.24071°W