Foster Coulee cut off and the Columbia River then discharged through Moses Coulee. Foster Coulee has been studied as a potential pumped-storage hydroelectricity site. The coulee would be dammed and approximately 500 MW generation capacity installed, exploiting the c. difference in elevation between the new reservoir and the existing Banks Lake. Banks Lake is in turn created by pumping water uphill from the Columbia River at the Grand Coulee Dam. The Washington ground squirrel, a candidate for U.S. Endangered Species Act listing, inhabits Foster Coulee. Foster Coulee Foster Coulee is a coulee in Douglas County, Washington. Like the larger Moses Coulee nearby,
Coulee City, Washington males. The median income for a household in the town was $25,938, and the median income for a family was $42,500. Males had a median income of $31,375 versus $17,250 for females. The per capita income for the town was $14,411. About 14.9% of families and 22.1% of the population were below the poverty line, including 29.2% of those under age 18 and 11.7% of those age 65 or over. Coulee City, Washington Coulee City is a town in Grant County, Washington. The population was 562 at the 2010 census. The town was named after nearby Grand Coulee. Coulee City