Reference only — not for real-world navigation.
K3W7
Grand Coulee Dam Airport · Electric City
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
1,588 ft / 484 m
Transition Altitude
18,000 ft
Primary Channel
CTAF 122.90 MHz (CTAF)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
03/21 · 4,199 ft · AsphaltLIGHTEDFlight Planning
Quick Jump to Next Destination
Tip: Search your next airport to quickly compare ILS data.
Welcome to the technical flight briefing for Grand Coulee Dam Airport (K3W7), located in Electric City, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 1 active runway with a maximum elevation of 1,588 ft. Please note that this field primarily supports VFR and visual approach procedures.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.
Full Name
Grand Coulee Dam Airport
ICAO / IATA
K3W7 / GCD
Municipality
Electric City
Country
Region
US-WA — Washington
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
1,588 ft
Official Website
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 03 / 21
LIGHTED
Runway Length: 4,199 ft / 1,280 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 51° / 231°
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 51° / 231°
RWY 03 (51°)
No ILS / Visual Only
RWY 21 (231°)
No ILS / Visual Only
CTAF CTAF
122.90 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026