Grand Coulee Dam Airport (GCD)

Grand Coulee Dam Airport (GCD), identified by the FAA as 3W7, is a publicly-owned general aviation facility located in Electric City, Washington. Serving as a specialized gateway to the Grand Coulee Dam and the surrounding Coulee Region, the airport features a single 4,200-foot asphalt runway. Its location is critical for supporting the operations of the Bureau of Reclamation at the dam—the largest electric power-producing facility in the United States—as well as providing access for utility crews, emergency services, and recreational pilots exploring the Columbia River and Lake Roosevelt. The infrastructure at Grand Coulee Dam Airport is basic and primarily unattended, designed for functional and self-sufficient aviation operations. The facility includes a modest passenger/pilot waiting room that provides essential weather shelter, a public restroom, and a flight planning area for pilots. While the airport lacks the commercial amenities of larger hubs, such as on-site dining or extensive retail, it offers a small retail shop and a designated parking area for visitors. The terminal environment is quiet and informal, reflecting its role as a utility and recreational hub in a rural part of Washington state. Ground transportation from the airport into Electric City and the Grand Coulee Dam site is straightforward, with the town's main commercial district and local hotels located just a short drive away. While there is no formal airport shuttle or regular bus service, travelers can typically arrange for local taxi services or utilize pre-arranged private transport. As a single-terminal, unattended facility, there are no inter-terminal transfers, and all transitions between aircraft and ground transport occur within a very compact footprint. Visitors are advised to coordinate their arrivals in advance, as the airfield serves primarily as a landing site for specialized dam operations and general aviation tours of the Columbia River engineering landmark.