Electric City, Washington
3W7 Grand Coulee Dam
Grand Coulee Dam (3W7) is a non-towered, public-use airport in Electric City, Washington, at 1,593.1 ft MSL. Its runway is 04/22 (4,203 by 75 ft, asphalt). Right traffic for runway 22. CTAF 122.9.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- FAA 3W7
- Location
- Electric City, Washington (Grant County). 2 NM SW of the city center
- Elevation
- 1,593.1 ft MSL
- Position
- 47.9221° N, 119.0830° W
- Control tower
- No, non-towered
- Sectional chart
- Seattle
- Magnetic variation
- 15° E (2020)
- Ownership
- Publicly owned, open to the public
- Attendance
- Unattended
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 04/22 | 4,203 × 75 ft | Asphalt, good condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 04 | Left traffic | None listed | None listed | None listed | Not listed |
| 22 | Right traffic | 2-light PAPI, left | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.9
- Actvt Reil Rwy 22; Papi Rwy 22; Mirl Rwy 04/22 - Ctaf.
Weather station
- AWOS-3PT 3W7
- 128.325
Before you go
Brief 3W7 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Grand Coulee Dam, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.