News Flash


Posted on: March 12, 2019

Fluctuation of North Platte River Flow Downstream of Gray Reef Dam Postponed

The Bureau of Reclamation, in response to a request from the Wyoming Game and Fish Department, has rescheduled a series of fluctuating flows in the North Platte River downstream of Gray Reef Dam. Fluctuating flows were previously scheduled to begin on March 18, 2019.  This operation has been postponed to accommodate construction work at the Alcova Bridge. The new start date for the fluctuating flows is Friday, March 29, 2019. The purpose of the fluctuations is to improve trout reproduction in the river. This spring, the Wyoming Game and Fish has requested flows for seven consecutive days. The Wyoming Game and Fish will collect data before, during and after the flushing flow in order to evaluate its effectiveness.

On March 18, 2019, flows in the river below Gray Reef Dam will fluctuate from 500 cubic feet per second (cfs) to 4000 cfs according to the following schedule:

HOURS                                        GRAY REEF OUTFLOWS (cfs)

00:01 to 1:00 am                          500
1:00 to 3:00 am                            2000
3:00 to 7:00 am                            4000
7:00 to 8:00 am                            3000
8:00 to 9:00 am                            2000
9:00 to 10:00 am                          1000
10:00 to midnight                         500

This schedule will be repeated daily from through April 7, 2019.  After completing the flushing flow on April 7, 2019, the flows below Gray Reef Dam will return to 500 cfs.  The schedule may be modified depending on river ice conditions.  The public is urged to use caution during this period of rapid fluctuation of flows below Gray Reef Dam.

Additional Info...
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