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Washington > Run The Dam Half Marathon, 10K & 5K
Grand Coulee, WA  •  Saturday, May 10, 2014  •  Course Map

Known around the region and around the country for its fishing, hiking and wildlife viewing, as well as the gorgeous natural beauty of the high mesas all around, the Grand Coulee Dam area here in northeast Washington State plays host in the spring of 2014 to the 34th Run The Dam, which features a 10K and a 5K race in addition to the 13.1-mile half marathon.

The race has a (somewhat) new name this year -- the Run The Dam race. In past years, it has been known as "That Dam Run" and the "Over The Dam" Run.

A staple on the state's road race calendar since the 1970s, the That Dam Run takes runners on a point-to-point course that takes them right up to and across the road that goes over the Grand Coulee Dam itself, which was built all the way back in 1942 and remains the largest structure of its kind anywhere in the United States, as well as the largest single producing facility of electric power in the country, and one of the largest producers of hydroelectric power anywhere in the world.

Runners start the race near the dam along Marina Way, and then head into Grand Coulee for a stretch of the race that takes them up northward along the banks of Lake Roosevelt, whose dammed-up Columbia River waters feed into the Grand Coulee Dam just below.

The course takes runners all the way north along the water toward the nearby community of Elmery City, where runners reach the turnaround point at about the 5th mile marker and then head back southward along the route they've just run.

Most of this stretch of the race is fast and flat, with only very minor changes in elevation, and the race remains that way as runners head south through the town of Grand Coulee and then across the dam itself, a majestic structure that today houses a visitor center and welcomes tours of the facility for runners looking for something to do after the race.

Runners cross the highway over the dam and then head toward Electric City, and the course then begins a gradual uphill over the last few miles toward the finish. The race is timed to coincide with this area's annual Colorama festival, which has been held here for more than five decades and features parades, a rodeo and carnival rides for kids.

Race Weather & Climate

Located just above the Grand Coulee Dam here in northeastern Washington State, roughly 86 miles west of Spokane, the small town of Grand Coulee typically experiences cool to moderately warm temperatures in the late spring, and usually dry weather year-round.

May Avg. Day of Race Monthly Precip.
Low: 45°F Low: 44°F Rain: 1.28 in.
High: 71°F High: 69°F Snow: 4.6 in.

Course Map

See the map for the That Dam Run Half Marathon

Starting Time

7:00 AM


See race website


To reserve your spot in the late spring 2014 running of Grand Coulee's That Dam Run Half Marathon, 10K or 5KK race, register online at Active.com.

Official Race Website


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SEE ALSO: 12-, 16- and 20-Week Half Marathon Training Plans
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