Roaring Fork Conservancy    Floating Northstar Preserve. Photo by Tim O'Keefe
 
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Not All Water Flows Downstream

The Twin Lakes tunnel is large enough to drive a full-size pick-up through when not diverting water. Photo by Greg Poschman. In the West, it is commonly known that water flows downstream unless its flows upstream towards money. We would add “money and people”. This adage is true in the state of Colorado. About 80% of our population lives on the Front Range while about 80% of the state’s water is on the Western Slope. Beginning in the 1930s, transmountain diversions that move water from west to east were built to help meet the demands of the more populous Front Range.

Allen Ringle of the Twin Lake Company explains water flows on past headwaters diversion tour. Photo by David Hiser.Today, Colorado has 24 major tunnels that move water from western Colorado to eastern Colorado under the Continental Divide. Two of the five largest diversions are located within the Roaring Fork Watershed. The Boustead tunnel moves water from the upper Fryingpan River and Hunter Creek drainages to Turquoise Lake near Leadville. The Twin Lakes tunnel diverts water from the Roaring Fork River headwaters to Twin Lakes on the other side of Independence Pass. This time of year, as tunnels move water and reservoirs fill, as much as 40% of the water in these headwaters areas is not flowing downstream.

As demand for water increases in the future, the Roaring Fork Watershed’s transmountain and in-basin diversions will play a major role in Colorado’s water future. We encourage you to learn more about transmountain diversions at www.roaringfork.org/diversions.

Below a map of the collection systems in Colorado. The Roaring Fork River diversions include numbers 14-16.

Colorado Transbasin Diversions (Roaring Fork Diversions circled in green)


 
 

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Transmountain Diversion Facts

Two of five largest transmountain diversions in Colorado are in Roaring Fork Watershed

38% of Roaring Fork headwaters above Aspen diverted on average, each year 

41% of Fryingpan headwaters above Meredith diverted on average, each year



Transmountain Diversion Projects History
The Past, Present, and Future of Transmountain Diversion Projects - From the Roaring Fork Watershed Plan Phase II Guidance Document Illuminating the Way Ahead by G. Moss Driscoll, Esq. Read the complete document here.

Read great interactive overview stories of Colorado headwaters water diversions
Click on the link above for interactive
Rocky Mountain News articles on
Colorado water diversions.


Take Action to help protect our rivers!

Flowing Uphill Presentation
Flowing Uphill: Watersheds, Transmountain Water Diversions and the Future of Water in Colorado - Ken Neubecker

 

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ROARING FORK CONSERVANCY Brings People Together to Protect Our Rivers

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