Old Dillon Reservoir to be drained | VailDaily.com

Old Dillon Reservoir to be drained

Daily Staff Report
Summit Daily News
Vail CO, Colorado

SUMMIT COUNTY, Colorado ” Dillon officials are draining the Old Dillon Reservoir immediately after a state engineer’s report indicated it poses a threat to public safety.

In its report, the State Engineers cited two reasons for drainage of the reservoir: beetle-killed trees have left the downstream slope less stable, and the metal-pipe spillway has deteriorated.

The engineers report states that the soft surface around the trees could easily topple and uproot resulting in significant damage to the dam. Also, avenues of piping through the dead root systems could occur.

Water also could escape outside the spillway, leading to dam failure.

The report noted that no seepage is occurring in the areas of concern.

The Town of Dillon had intended to drain the reservoir in Fall of 2008 to prepare for the reconstruction and expansion of the reservoir.

The public is encouraged to aid in the removal of fish from the reservoir by fishing.

Other impacts include loss of aesthetics until the dam is re-filled, after the planned improvements are completed.

“The process to correct the condition of the dam will begin immediately,” said Eric Holgerson, the town’s public-works director.

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