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Grand Coulee Dam

Lake Roosevelt National Recreation Area, Grand Coulee, Washington 99116 USA

Closed Now
Opens Thu 8:30a

“see the crazy light show!”

   Grand Coulee Dam is truly magnificent to behold. Built from 1933 to 1975, it is 550 feet tall, from the 500 foot wide polished granite base, to the 30 foot wide crest which supports a paved two lane road. When you include the third power house, Grand Coulee Dam is almost 1 mile long. Did you know there is enough concrete in the Grand Coulee Dam to build a 60 foot wide highway four inches thick, from Los Angeles to New York City! ~  That is a 4 lane Highway  3,000 miles long.

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Reviewed by

  • 5 Reviews
  • 0 Helpful
May 24, 2017

TOURS: Beginning April 3rd, a 50-minute guided tour is free of charge and available only on a first-come, first-served basis. Download the tour map >>.

The tour begins at the tour building where you will board a van or bus to be taken to the Pump-Generating Plant. Highlights include a look at the large pumps used for transporting water from Lake Roosevelt to the Columbia Basin Project, concluding with a ride across the top of the dam. Accessible tours are available with advanced notice by calling (509) 633-9265.

All tour participants are required to pass through a metal detector prior to beginning the tour. Weapons, purses, bags, backpacks, fanny packs, and packages are not permitted on the tour. Cameras, but not camera cases, are allowed on the tour. Onsite storage for personal belongings is not available. Be sure to lock your car.

Tour times are subject to change without notice. Please call the Grand Coulee Dam Visitor Center at (509) 633-9265 for the latest information.

LASER LIGHT SHOW: Grand Coulee's laser light show, One River, Many Voices, is held nightly at Grand Coulee Dam starting the Saturday of Memorial Day Weekend through September 30. The show lasts about 30 minutes and is free of charge. Show times are:

Saturday of Memorial Day Weekend to July 31 at 10:00 p.m.
August 1 to August 31 at 9:30 p.m.
September 1 to September 30 at 8:30 p.m.

The best location to watch the laser show is from the visitor center at the dam and from the park below the visitor center. An outdoor sound system is provided.

Information provided by Grand Coulee Dam Website.

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Reviewed by
Sarah Race

  • 30 Reviews
  • 9 Helpful
August 12, 2016

When you take the Coulee Corridor scenic route, you drive right by the dam. It is a good place to stretch your legs grab a few photos. By the time we arrived the visiter center was closed.

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  • 3 Reviews
  • 0 Helpful
August 06, 2016
Rated 4.0

A huge dam with a lot of history, very good visitor center with interesrting movie.

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