Casper Regional News

*March 6, 2025  *





*Flushing Flow on North Platte River to Begin March 17*

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Flushing Flows on the NPR

CASPER - Anglers and outdoor enthusiasts should prepare for rising water levels in the North Platte River as a 10-day flushing flow operation begins Monday, March 17, the Wyoming Game and Fish Department announced.

 

At the department’s request, the Bureau of Reclamation will release additional water from Gray Reef Reservoir to improve fish spawning habitat and increase invertebrate populations that support trout in the North Platte River. Each day, the flow from Gray Reef Reservoir will rise from 500 cubic feet per second to 4,000 cfs between 3 and 7 a.m. before gradually returning to 500 cfs by 10 a.m. The cycle will repeat daily through March 26, after which flows will stabilize at approximately 500 cfs.

 

“Research shows these flushing flows are essential for sustaining wild trout populations,” said Matt Hahn, fisheries supervisor for the Casper region. “Before this practice began in 1995, trout populations often fell below 400 per mile, requiring large-scale stocking efforts. Now, thanks to annual flushing flows, the population averages more than 3,500 trout per mile.”

 

*Safety Advisory for River Users*

 

Game and Fish urges anglers and recreationists to be cautious during the flushing flow period, especially as the operation will extend through a weekend. Areas typically safe for wading at 500 cfs may become hazardous at 4,000 cfs.

 

The flushing flow is scheduled March 17 to 26 to maximize benefits for spawning rainbow trout.

For updates, visit wgfd.wyo.gov. [ [link removed] ]






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The Wyoming Game and Fish Department manages and conserves more than 800 species of fish and wildlife across Wyoming.  For nearly 120 years, we’ve carried out our mission to conserve wildlife and serve people. Through these efforts, the Wyoming Game and Fish Department ensures the public continues to enjoy Wyoming’s vast fish and wildlife resource  through  hunting, fishing, trapping, wildlife watching and other forms of outdoor recreation. Hunters, anglers and wildlife watchers contribute over a billion dollars to Wyoming’s economy each year.

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*Wyoming Game and Fish Department*
Casper Regional Office
3030 Energy Lane
Casper, WY 82604

Janet Milek
Public Information Specialist
(307) 233-6404
[email protected] 



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