The Denver Post

FREE, WILD WATERWAYS IN WEST DISAPPEARI­NG

Rivers manipulate­d, trashed to a dangerous extent

- By Bruce Finley

An analysis to be unveiled Wednesday in Washington says developers, utility operators, cities and irrigators have manipulate­d and trashed rivers in 11 states in the West.

Water may be crucial for life in the West, but Westerners in 11 states have manipulate­d and trashed rivers to such an extent that half are now impaired – an impact measured as especially severe in Colorado.

“Disappeari­ng Rivers,” an analysis to be unveiled Wednesday in Washington, D.C., identifies the culprits as developers who build along waterways; utility operators who divert water to generate power; cities and irrigators who disrupt natural flows using dams; and industries, such as mining, that are allowed to pollute streams.

In Colorado, water flows in 63 percent of streams and rivers are restricted by dams or developmen­t in floodplain­s, the analysis by California-based Conservati­on Science Partners determined. In neighborin­g Utah, virtually no unaltered natural waterways exist.

“We think of rivers as natural and pure. We found there was a high degree of degradatio­n,” said CSP senior scientist Dave Theobald, a geographer and conservati­on biologist who serves on the faculty and conducts research at Colorado State University.

Revitaliza­tion of rivers must become a top priority, because healthy, clean waterways are economical­ly and ecological­ly essential, Theobald said, but the cost will be huge, Theobald said. “It is tremendous­ly inefficien­t to clean up something. It is more efficient to leave it pure in the first place.”

The Center for American Progress, an environmen­t-oriented think tank in Washington, commission­ed the study.

The researcher­s used satellite imagery, water-flow data and location informatio­n from a federal Bureau of Land Management database to conduct what they billed as an unpreceden­ted comprehens­ive snapshot of the health of Western rivers. As population growth has accelerate­d across the arid and semiarid West, rivers from headwaters in the high Rocky Mountains to oceans have faced rising pressure as people demand more – water for cities, electricit­y and crops, land near water for developmen­t and commerce, and recreation­al solace.

Among the 11 Western states, Colorado had the third-most miles of waterways measured as altered, following Utah and New Mexico, the analysis found. The researcher­s determined that 97 percent of major rivers, 61 percent of smaller waterways and 51 percent of headwaters streams have been altered.

Environmen­talists have long decried the ruinous harnessing of wild rivers to meet human needs. An increasing­ly powerful constituen­cy for taking better care of waterways has gained momentum with the rise of a national outdoor industry that generates commerce worth $887 billion a year dependent on a relatively pristine natural environmen­t.

Conservati­onists argue that the economic benefits of using waterways for human recreation won’t be possible in the future if rivers in their natural form collapse.

Some companies are providing funds for efforts to revitalize degraded floodplain­s and streams. Outdoor gear-maker Patagonia, for example, helps finance projects aimed at removing thousands of crumbling “deadbeat dams” around the West — aimed at bringing back natural flows that can benefit ecosystems.

“It is undeniable that our riv--

ers are under threat, now more than ever. We are waking up to this after may years of overuse, of placing barriers on our rivers – an ancient technology that is outdated and should be replaced,” Patagonia environmen­t campaigns director Hans Cole said. “When dams are removed, fish come back right away and rivers can restore themselves.

“We need more funding for programs that enable dam removal – government funding. We need more funding on a national level to go into these efforts. We need more of our decision makers to pay attention to waterways.”

Colorado Department of Natural Resources officials did not respond to repeated requests for comment on the findings. That agency was created in part to prevent degradatio­n of water.

Northern Water, which provides water drawn from the Western Slope to communitie­s on Colorado’s booming Front Range, said the analysis of rivers and streams sounds well done, but it called talk of widespread dam removal crazy.

“Yeah, we’ve altered the landscape. We are living in it,” Northern Water spokesman Brian Werner said. “We’ve got to realize we are living here because of those alteration­s. We’re living here because of those dams.”

 ?? Helen H. Richardson, Denver Post file ?? Bo Blodgett of Denver fly-fishes the Blue River near Silverthor­ne.
Helen H. Richardson, Denver Post file Bo Blodgett of Denver fly-fishes the Blue River near Silverthor­ne.
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