1
Runway
4
Frequencies
5
Procedures
1
NOTAM
Quick Facts
FAA
3W7
Elevation
1,593.1 ft MSL
Runways
1
Frequencies
4
Tower
No
Fuel
N/A
Coordinates
47.922, -119.083
Airport Information
Facility Type
AIRPORT
Elevation
1,593.1 ft MSL
Control Tower
No
Fuel Types
None listed
ARTCC
SEATTLE
Coordinates
47.9221, -119.0830
Ownership
Public
Hours of Operation
Current Weather
METAR K3W7 211655Z AUTO VRB04KT 10SM CLR 18/M01 A3016 RMK AO2
Flight Category
VFR
Wind
VRB° at 4 kt
Visibility
10+ SM
Temperature
18°C
Dewpoint
-1°C
Altimeter
1021.40 inHg
Cloud Cover
CLR
Nearest weather from K3W7 (0 NM away)
Observed 2026-05-21 16:55Z
Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| 04/22 | 4,203 ft | 75 ft | ASPH | MED |
Frequencies
| Type | Frequency | Name |
|---|---|---|
| 3W7 AWOS-3PT | 128.325 | - |
| CTAF | 122.9 | GRAND COULEE DAM |
| MARLIN RCAG | 126.1 | MARLIN |
| MARLIN RCAG | XXX.XXX | MARLIN |
Active NOTAMs
IFR Procedures
1 SIDs, 2 Approaches, 2 Runway
Nearby Airports in Washington
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- 73WA — 7 BAYS
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3W7 Operational Overview
Location & Facility
GRAND COULEE DAM (3W7) is a publicly owned airport open to the public located in ELECTRIC CITY, Washington, United States. The field sits at an elevation of 1,593.1 feet above mean sea level (MSL) at coordinates 47.9221°N, 119.0830°W.
Runways
GRAND COULEE DAM has 1 runway. The longest runway (04/22) measures 4,203 feet by 75 feet with a asph surface.
Communications & Operations
GRAND COULEE DAM is a non-towered (pilot-controlled) field. A total of 4 communication frequencies are published for this facility.
Instrument Procedures
GRAND COULEE DAM has 5 published instrument flight procedures, including 2 approaches, 1 SID (Standard Instrument Departure). These procedures are updated on the 28-day AIRAC cycle. Sign up for AeroCopilot to view full procedure charts with waypoint maps and altitude profiles.
Current Conditions
The current flight category at GRAND COULEE DAM is VFR (Visual Flight Rules — good flying conditions). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations. There is currently 1 active NOTAM for this facility.
Frequently Asked Questions
What is 3W7?
3W7 is the ICAO identifier for GRAND COULEE DAM, a public-use airport located in ELECTRIC CITY, Washington, United States.
How many runways does GRAND COULEE DAM have?
GRAND COULEE DAM (3W7) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of 3W7?
The field elevation of GRAND COULEE DAM is 1,593.1 feet above mean sea level (MSL).
Is fuel available at 3W7?
No fuel types are currently listed for GRAND COULEE DAM. Contact the FBO directly for availability.
What are the current weather conditions at 3W7?
The current flight category at GRAND COULEE DAM is VFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at 3W7?
There are currently 1 active NOTAM for GRAND COULEE DAM. Sign up for AeroCopilot to read decoded NOTAM text and AI interpretations.
How do I access complete data for 3W7?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for GRAND COULEE DAM.
Where is GRAND COULEE DAM located?
GRAND COULEE DAM (3W7) is located in ELECTRIC CITY, Washington, United States, at an elevation of 1,593.1 ft MSL.