(Shoshoni, Wyo.) – One month ago there were mudflats on each side of the Highway 26/789 Boysen Reservoir causeway and the edge of the reservoir pool was far off in the distance. Today, the reservoir is 98.3 percent full and close to its flood control pool.
Inflow into the reservoir from the Wind River today is nearly 8,000 cubic feet per second (7,988.9 cfs) and since May 6th water in the reservoir has risen 20 feet to an elevation today of 4724.59 feet, as of noon.
Water flowing out of the reservoir below the dam was measured this morning at 4,007 cfs. The reservoir currently holds 733,586 acre feet of water.
The highest inflow from the Wind River was measured at just over 12,000 cfs at the end of May. At Kinnear and at Riverton, the river is running nearly bank full with some low land flooding of agricultural areas. The river at both locations is at or just above 8 feet, one foot short of its flood level.
The unknown factor in the level of the river is the National Weather Service forecast for heavy rains in the watershed this evening after 5 p.m.