3W7 Grand Coulee Dam Airport

Before you fly into 3W7

Conditions

VFR

Good for visual flying

Airport

Non-towered

Self-announce on CTAF

Pattern alt

2,593.1'

MSL · field 1,593.1' + 1,000 AGL

Favored RWY

RWY 22

H/W +3 · X/W 1 kt R

METAR & TAF 3W7

Current METAR

Observed 05:35Z

K3W7 280535Z AUTO 25003KT 10SM SCT110 09/02 A2989 RMK AO2

Wind: 250° @ 3 kt
Visibility: 10 SM
Temp / Dew: 9°C / 2°C
Altimeter: 29.89 inHg
Clouds: SCT
Density alt: 1,293 ft
Ceiling: Unlimited
Rules: VFR

3W7 does not issue a TAF.

Showing the forecast from the nearest station: KMWH (GRANT COUNTY INTL) · 43.9 NM away. Conditions at 3W7 may differ.

Forecast · TAF

Valid 28 06:00Z–29 06:00Z

TAF KMWH 280526Z 2806/2906 29005KT P6SM FEW120 FM281000 20004KT P6SM BKN150 FM290000 19006KT P6SM BKN250

BASEVFR

28 06:00Z–28 10:00Z

Wind: 290° at 5 kt
Visibility: ≥ 6 SM
Sky: Few clouds 12,000 ft
Weather: None forecast

06Z

09Z

12Z

15Z

18Z

21Z

00Z

03Z

06Z

NOW

How to read

The top lane is always the active baseline (BASE + FM). Secondary lanes stack temporary and probabilistic deviations in the order they appear in the TAF.

Tap any pill to see the decoded conditions for that period.

Change indicators

BASEBase

Initial conditions at the start of the forecast.

FMFrom

A new baseline that replaces the previous forecast completely, starting at the stated time.

BECMGBecoming

Conditions change gradually over the window shown. By the end, the new conditions apply.

TEMPOTemporary

Fluctuating conditions lasting less than an hour at a time within the window — not the dominant forecast.

PROB30/40Probability

30 or 40% chance of the conditions occurring within the period. Never combined with BECMG.

Airport info & contacts

Manager on record, flight service, ARTCC, attendance schedule and pattern altitude — published by the FAA and refreshed every 28 days.

Location

From city: 2 NM SW
VFR sectional: SEATTLE
ARTCC: ZSE · SEATTLE
NOTAM facility: SEA (NOTAM-D)

Airport manager

Name: ROBERT BABLER
Phone: 509-631-4797
Address: P.O. BOX 182, GRAND COULEE WA 99133

Flight service · Hours

FSS SEA: SEATTLE1-800-WX-BRIEF
Attendance: Unattended

Frequencies

Tap any row to copy the frequency to your clipboard.

Advisory / CTAF

Runways & pattern

Full page

Runway & wind

tap a runway

250° · 3 kt

See full METAR & TAF

RWY 22

216°M

Head/Tail

+3 kt

Crosswind

1 kt R

Pattern entry · RWY 22

RIGHT TRAFFIC

Runway	Heading (°M)	Length	Surface	Traffic
04/22Favored	36° / 216°	4,203 ft	ASPH	22 R

Runway end performance

End	TORA	TODA	ASDA	LDA	VGSI	Approach lights	Obstruction
04	—	—	—	—	—	—	490', hill, 9000' from thr, 0' R of cntrln, slope 17
22	—	—	—	—	PAPI 2-box left(4.2°)	—	30', gnd, 1195' from thr, 0' R of cntrln, slope 33

Declared distances in feet. TORA = takeoff run available, TODA = takeoff distance, ASDA = accelerate-stop, LDA = landing distance.

Airport sketch

Runways drawn to scale from FAA survey coordinates, rendered over live satellite imagery. Not for navigation.

Approaches & charts

RNAV (GPS) Y RWY 22

3W7 · IAP

RNAV (GPS) Y RWY 22

3W7 · IAP

Services on the field

Fuel grades, oxygen, maintenance, ramp storage and lighting — as declared to the FAA by the airport operator.

Fuel & services

Fuel: Not available
Oxygen (bottled): Not available
Oxygen (bulk): Not available
Airframe repair: Not available
Power plant repair: Not available

Ramp & ground

Transient storage: Tie-down
Landing fee: No fee published
Customs: Not available
Lighting schedule: SEE RMK
Beacon schedule: SS-SR
Beacon: White / Green (civil land)(WG)
Wind indicator: Lighted
Segmented circle: Yes

Fuel & FBOs

Cheapest 100LL and Jet A on the field and nearby. Always confirm with the FBO before taxi.

Cheapest 100LLNearby

$6.00

2S8·Greg's Crop Care·17 nm

Cheapest Jet ANearby

$5.25

2S8·Greg's Crop Care·17 nm

No on-field FBO prices. See nearby fuel options below.

Cheaper nearby (within 50 nm)

100LL$6.00at2S8Greg's Crop Care17 nm
Jet A$5.25at2S8Greg's Crop Care17 nm

Airport notes

Surface conditions, obstructions, local procedures, lighting outages and other notes published with each FAA cycle.

General notes

Geese and wildlife are in the vicinity of the runway.Show FAA
For clearance delivery, contact Seattle ARTCC at 253-351-3694.Show FAA

Lighting notes

Runway end identifier lights are activated on runway 22. Precision approach path indicators are on runway 22. Medium intensity runway lights are on runways 04 and 22 and controlled by CTAF.Show FAA

Approach & departure obstructions

04A 15-foot tree is 61 feet from the threshold, 73 feet to the left, and a ditch is 27 feet from the threshold, 91 feet to the right of runway 04.Show FAA
22Brush is located 79 feet to the right and a slope with brush is 100 feet from the threshold, 99 feet to the left of runway 22.Show FAA

Other notes

Pilots must bring their own ropes.Show FAA

VFR map & nearby airports

VFR sectional. Tap any ICAO chip to open that airport.

Key facts · 3W7

Answer card

ICAO: 3W7
Name: GRAND COULEE DAM
Location: ELECTRIC CITY, WASHINGTON
Elevation: 1,593.1 ft MSL
Traffic pattern altitude: 2,593.1 ft MSL (1,000 AGL)
Control tower: Non-towered (use CTAF)
Total runways: 1
Longest runway: 04/22 · 4,203 ft
Published ILS approaches: 0
Published frequencies: 1
Magnetic variation: 15°
Current flight rules: VFR
Current wind: 250° at 3 kt
Favored runway now: RWY 22

Grand Coulee Dam Airport (3W7) sits in Electric City, Washington. Field elevation is 1,593.1 ft MSL. The airport has one runway. Runway 04/22 is 4,203 ft long on asphalt. There is no control tower. CTAF is 122.9.

No ILS approaches are published here. Pattern altitude is not published in the facts, so use standard 1,000 ft AGL for light piston operations unless the current Chart Supplement says otherwise. The published remarks matter here. Runway 22 has REILs, PAPI and medium intensity lighting controlled by CTAF. Runway 04 has medium intensity lighting as well. The field also has noted obstructions near both thresholds. Expect a tree and ditch near runway 04. Expect brush and a slope with brush near runway 22.

There are no on-field FBOs listed. Bring your own ropes. Wildlife is also noted in the runway area, so keep a sharp scan on taxi, takeoff and landing. For clearance delivery, contact Seattle ARTCC at 253-351-3694. If you need current operational details, check the current FAA Chart Supplement or call the airport operator directly before departure.

Frequently asked questions

What is the runway at Grand Coulee Dam Airport (3W7)?

3W7 has one runway, 04/22. It is 4,203 ft long and has an asphalt surface.

Does 3W7 have an ILS approach?

No ILS approaches are published for 3W7. Check the current FAA Chart Supplement for the latest approach data before you go.

What is the pattern altitude at Grand Coulee Dam Airport?

Pattern altitude is not published in the facts. Use standard 1,000 ft AGL for light piston traffic unless the current Chart Supplement says otherwise.

Is Grand Coulee Dam Airport towered?

No. 3W7 is non-towered. Use CTAF 122.9 for self-announce traffic calls.

What lighting is available on runway 22 at 3W7?

Runway 22 has runway end identifier lights, PAPI and medium intensity runway lights. The lights are controlled by CTAF.

What obstacles are near the runways at 3W7?

Runway 04 has a 15-foot tree near the threshold and a ditch off to the right. Runway 22 has brush near the right side plus a slope with brush near the threshold on the left.

Are there any FBOs on the field at Grand Coulee Dam Airport?

No on-field FBOs are listed in the facts. Contact the airport operator directly before arrival, or call the field on CTAF for current FBO availability.

What should I know before landing at 3W7?

Watch for geese and other wildlife near the runway. The remarks also say pilots must bring their own ropes. Plan ground handling accordingly.

3W7