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Grand Coulee Dam Airport
3W7 (Electric City, WA)
Class G: untowered

Elevation: 1593


RwySizeTypeCond.
04/224203x75AsphaltGood


Chart Supplement (pdf version)

GRAND COULEE DAM (3W7) 2 SW UTC–8(–7DT) N47º55.32´ W119º04.98´
1593 B NOTAM FILE SEA
RWY 04–22: H4203X75 (Asphalt) S–26 MIRL

RWY 04: Hill.
RWY 22: Runway End Identifier Lights. PAPI(P2L)—GA 4.2º TCH 53´. Ground. Right Traffic. LIGHTING ACTIVATE Runway End Identifier Lights Runway 22; PAPI Runway 22, MIRL Runway
SERVICE: 04—22–CTAF.

AIRPORT REMARKS: Unattended. Geese & wildlife in the vicinity of runway.
AIRPORT MANAGER: 509-631-4797
WEATHER DATA SOURCES: AWOS–3PT 128.325 (509) 631–8955.
COMMUNICATIONS: CTAF 122.9
®
SEATTLE CENTER APPROACH/DEPARTURE CONTROL 126.1 CLEARANCE DELIVERY PHONE: For clearance delivery contact Seattle ARTCC at 253-351-3694.
RADIO AIDS TO NAVIGATION: NOTAM FILE EPH.
EPHRATA (VH) (H) VORTACW 112.6 EPH Chan. 73 N47º22.68´ W119º25.44´ 002º 35.5 NM to field. 1250/21E. VOR unusable:
010º–014º beyond 40 NM
042º–054º beyond 40 NM
214º–228º beyond 40 NM below 7,000´
214º–228º beyond 52 NM below 10,000´
214º–228º beyond 77 NM
229º–247º beyond 40 NM
310º–350º beyond 25 NM below 6,500´
310º–353º beyond 40 NM
358º–004º beyond 40 NM TACAN AZIMUTH unusable:
280º–295º beyond 25 NM below 7,000´
310º–350º beyond 25 NM below 6,500´ DME unusable:
280º–295º beyond 25 NM below 7,000´
310º–350º beyond 25 NM below 6,500´



ApproachTypeCat B MinsPlate
RNAV (GPS) Y RWY 22LNAV
CIRCLING
2840-1½
2860-2¼
chart
RNAV (GPS) Z RWY 22LP
CIRCLING
2240-1
2860-2¼
chart



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Database updated: 2026/03/19

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