From The Colorado Sun (Jason Blevins):
Rockfall destruction challenges green-power provider and the nonprofit, member-supported ice park as repair costs climb.
Workers arriving early at the Ouray Ice Park on Tuesday found a disaster.
A boulder the size of a pool table had sheared off the canyon wall and destroyed the metal walkway accessing the park’s popular ice climbs. And it ripped out the penstock that ferries water to the oldest operating hydropower plant in the U.S.
“Just water squirting everywhere and the access bridge, laying at the bottom of the canyon,” said Eric Jacobson, who owns the hydroelectric plant and pipeline that runs along the rim of the Uncompahgre River Gorge.
The rock tore through the penstock, its trestle and the decades-old steel walkway in the park’s popular Schoolroom area late Monday. There was no one in the gorge and no injuries.
When the overnight temperatures are cold enough in December, January and February, a team of ice farmers use as much as 200,000 gallons of water a night trickling from the penstock to create internationally renowned ice-climbing routes. More than 15,000 climbers flock to Ouray every winter to scale the 150-foot fangs of ice, supporting the city’s winter economy. And Jacobson generates about 4 million kilowatt hours a year from water flowing into his antiquated but updated Ouray Hydroelectric Power Plant. He sells the power to the San Miguel Power Association.
The plant generates about 5% of the association’s power needs, which has a robust collection of green power sources, including several small hydropower plants and a solar array in Paradox.