Pinto, also known as Long Lake Dam, is a federal-owned structure located in Grant, Washington.
Wind
Humidity
Constructed in 1948 by the Bureau of Reclamation, Pinto serves multiple purposes including flood risk reduction, irrigation, and recreation. This earth dam stands at a height of 111 feet with a hydraulic height of 107 feet, offering a maximum storage capacity of 76,500 acre-feet and a normal storage of 64,200 acre-feet.
Situated on Crab Creek-offstream, Pinto plays a crucial role in managing water resources in the region, with a drainage area of 186 square miles and a maximum discharge capacity of 15,800 cubic feet per second. Despite being classified as having a high hazard potential, the condition assessment for Pinto is currently not available. Emergency Action Plans (EAP) have been prepared, last revised in September 2020, to ensure proper protocols are in place in case of any unforeseen events.
With its strategic location and significant impact on the surrounding environment, Pinto remains a vital infrastructure for water management and flood control in Washington state. As climate change continues to pose challenges to water resources, structures like Pinto will play a crucial role in safeguarding communities and ecosystems against potential risks and ensuring sustainable water management practices for the future.
Year Completed |
1948 |
Dam Length |
1900 |
Dam Height |
111 |
River Or Stream |
CRAB CREEK-OFFSTREAM |
Primary Dam Type |
Earth |
Surface Area |
1010 |
Hydraulic Height |
107 |
Drainage Area |
186 |
Nid Storage |
76500 |
Structural Height |
130 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
130 |
Crab Creek Near Moses Lake
|
28cfs |
Crab Creek At Irby
|
2cfs |
Wilson Creek Below Corbett Draw Near Almira
|
0cfs |
Chelan River At Chelan
|
770cfs |
Coal Creek At Mohler
|
1cfs |
Entiat River Near Entiat
|
1520cfs |
| Location | Reservations | Toilets |
|---|---|---|
Sun Lakes State Park Resort
|
||
Coulee City Community Park
|
||
Blue Lake - WDFW
|