Willow Creek Dam (Montana)

Willow Creek Dam
Location of Willow Creek Dam in Montana Willow Creek Dam (Montana) (the United States)
Country	United States
Location	Lewis and Clark County, Montana
Coordinates	47°32′48″N 112°25′51″W
Purpose	irrigation & flood control
Status	Operational
Construction began	1907
Opening date	1911
Built by	United States Bureau of Reclamation
Dam and spillways
Impounds	Willow Creek
Height	93 ft (28 m)
Length	650 ft (200 m)
Reservoir
Creates	Willow Creek Reservoir
Total capacity	32,400 acre⋅ft (40,000,000 m3)
Surface area	1,530 acres (620 ha)
Normal elevation	4,150 ft (1,265 m)

Willow Creek Dam (National Inventory of Dams ID MT00577) is a dam in Lewis and Clark County, Montana.

The earthen dam was originally constructed between 1907 and 1911 by the United States Bureau of Reclamation, then modified and reinforced several times since. With a height of 93 feet (28 m) and 650 feet (200 m) long at its crest, it impounds Willow Creek for irrigation storage and flood control, part of the Bureau's larger Sun River Project. The dam is owned and operated by the Bureau.

The reservoir it creates, Willow Creek Reservoir, has a water surface of 1,530 acres (620 ha), another 3,069 acres (1,242 ha) of surrounding land, about 11 miles (18 km) of shoreline, and a maximum capacity of 32,400 acre-feet (40,000,000 m³). Recreation includes fishing (for rainbow trout and kokanee salmon), camping, hunting, boating, and hiking.