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Grand Coulee Dam

Grand Coulee, Washington · Grant County

Grand Coulee Dam, part of the Columbia Basin Project, located on the Columbia River in Washington State, is one of the largest concrete structures in the world. The dam is also the largest hydropower producer in the United States with a total generating capacity of 6,809 megawatts. The visitor center is open daily 9 a.…

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About Grand Coulee Dam

Grand Coulee Dam, part of the Columbia Basin Project, located on the Columbia River in Washington State, is one of the largest concrete structures in the world. The dam is also the largest hydropower producer in the United States with a total generating capacity of 6,809 megawatts. The visitor center is open daily 9 a.m. to 5 p.m., except for Thanksgiving, December 25, and January 1. From Memorial Day through September 30 the visitor center is open from 8:30 a.m. until the end of the laser light show each evening. Free guided tours are available from 10 a.m. to 5 p.m.

Plan Your Visit to Grand Coulee Dam

Heading to Grand Coulee Dam? A few things to know before you go:

  • Reservations: popular sites fill up fast — check Recreation.gov 6 months in advance
  • Fees: day-use and camping fees vary; check current rates on the official park page
  • Trash & pack-out: follow Leave No Trace principles
  • Wildlife: store food in bear boxes where provided; never feed wildlife
  • Weather: the 5-day forecast above is updated every 6 hours; verify just before you go

Frequently Asked Questions

Do I need a reservation for Grand Coulee Dam?

No central reservation system listed for Grand Coulee Dam. Check the official page (https://www.recreation.gov/recarea/1889) for the latest entry policy and availability.

How do I get to Grand Coulee Dam?

90 miles west of Spokane, Washington on State Highway 155

How do I contact Grand Coulee Dam?

You can reach the park at phone: 509-633-9265 or email: pninfo@usbr.gov.