Roza Dam is a diversion dam

Diversion dam

A diversion dam is the term for a dam that diverts all or a portion of the flow of a river from its natural course. Diversion dams do not generally impound water in a reservoir...

 on the Yakima River

Yakima River

The Yakima River is a tributary of the Columbia River in south central and eastern Washington State, named for the indigenous Yakama people. The length of the river from headwaters to mouth is , with an average drop of .-Course:...

, about 10 miles (16.1 km) north of Yakima

Yakima, Washington

Yakima is an American city southeast of Mount Rainier National Park and the county seat of Yakima County, Washington, United States, and the eighth largest city by population in the state itself. As of the 2010 census, the city had a total population of 91,196 and a metropolitan population of...

, just west of SR 821

Washington State Route 821

State Route 821, also known as Canyon Road, is a state highway in Washington. It runs from an intersection with Interstate 82 north of Selah to another junction with I-82 south of Ellensburg. The total length of SR 821 is .-Route description:...

. The dam, built in 1939, is 486 feet (148.1 m) long at the crest and 67 feet (20.4 m) high, and impounds approximately 100 acre (0.404686 km²) of water. The dam also has 12,000 kW power production capacity, online as of 1956. There is also an adult fish ladder

Fish ladder

A fish ladder, also known as a fishway, fish pass or fish steps, is a structure on or around artificial barriers to facilitate diadromous fishes' natural migration. Most fishways enable fish to pass around the barriers by swimming and leaping up a series of relatively low steps into the waters on...

at this location.

External links

• http://php.ptagis.org/wiki/index.php/Site_Page_RZF_-_Roza_Dam_Fish_Ladder