Lower Goose Creek Reservoir is a lake located 4,734 feet (1,443 m) above sea level,[1] south of the town of Oakley in Cassia County, Idaho, United States.

[4] Oakley Dam impounds the reservoir's primary inflow, Goose Creek.

[2] Lower Goose Creek Reservoir covers an area of 1,006 acres (407.1 ha).

Farms, fields, and numerous buildings in the city of Burley lay in the old plain of Goose Creek, and so were at severe risk of flooding if the reservoir was breached.

To provide a safe water outlet, hundreds of local volunteers and the Army Corps of Engineers dug a 17-mile long, 70-foot wide diversion channel across private property in 4 days.