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GRAND COULEE DAM - Airport Diagram
LiveATC.net: Live Air Traffic - From Their Headsets to You

3W7
Local 3W7
GRAND COULEE DAM
PublicPUB

2 miles SW of ELECTRIC CITY, WA, US
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LiveATC.net: Live Air Traffic - From Their Headsets to You
Status
Operational
Coordinates
47° 55' 19"N 119° 04' 59"W
Elevation
1593' MSL
Pattern Alt
2593' MSL
Mag Variation
15°E
Declination
15°E
Fuel
None Listed
FSS
SEATTLE (SEA)
Sectional
SEATTLE
ARTCC
SEATTLE (ZSE)
Data Effective
2/19/26-3/19/26
K3W7 VFR
5:55 PM PST  
Broken 12,000'
10sm
50°F
43°F
29.94"Hg
Calm
AO2
METAR K3W7 040155Z AUTO 00000KT 10SM BKN120 10/06 A2994 RMK AO2
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Weather and Advisory

AWOS-3PT 128.325
(509) 631-8955

Common

CTAF 122.9
ACTVT REIL RWY 22; PAPI RWY 22; MIRL RWY 04/22 - CTAF.

Center

SEATTLE CENTER 126.1
LOW, APCH/DEP SVC PRVDD BY SEATTLE ARTCC (ZSE) ON FREQS 126.1/291.6 (MARLIN RCAG).

FAA A/FD Pages

Airport Minimums

Departure Procedures

Instrument Approach

Terminal Area Forecast

KMWH (45nm)
Tue, 3/3 3:23 PM PST
Tue, 3/3 4:00 PM PST - Wed, 3/4 4:00 PM PST
VFR
4:00 PM PST - 4:00 AM PST
Broken 10,000'
6sm
210° 10kts
VFR
10:00 PM PST - 4:00 AM PST
Light Rain
Overcast 4,500'
6sm
Calm
VFR
4:00 AM PST - 10:00 AM PST
Light Rain
Overcast 3,500'
6sm
Calm
VFR
4:00 AM PST - 10:00 AM PST
Overcast 4,500'
6sm
180° 6kts
VFR
10:00 AM PST - 4:00 PM PST
Light Showers and Rain
Overcast 3,500'
6sm
Calm
VFR
10:00 AM PST - 4:00 PM PST
Overcast 5,000'
6sm
230° 8kts
TAF KMWH 032323Z 0400/0424 21010KT P6SM BKN100
   PROB30 0406/0412 6SM -RA OVC045
   FM041200 18006KT P6SM OVC045
   PROB30 0412/0418 6SM -RA OVC035
   FM041800 23008KT P6SM OVC050
   PROB30 0418/0424 6SM -SHRA OVC035
3W7
EffectiveExpiresCategoryNOTAM
Domestic
2/20/26
2036Z
3/21/26
2300Z
!SEA 02/258 3W7 OBST TOWER LGT (ASR 1033934) 474918.00N1185603.00W (8.5NM SE 3W7) 3303.8FT (485.6FT AGL) U/S 2602202036-2603212300
2/6/26
0000Z
5/6/26
2359Z
!SEA 02/073 3W7 AIRSPACE SEE ZSE 02/072 UAS DLY 0000-2359
2602060000-2605062359
No
UNATNDD
GRANT CO PORT DIST NR 7
P.O. BOX 616
GRAND COULEE, WA 99133
Phone: 509-631-4797
ROBERT BABLER
P.O. BOX 182
GRAND COULEE, WA 99133
Phone: 509-631-4797
SEATTLE FSS (SEA)
Toll Free: 1-800-WX-BRIEF
SEA
--
ACTVT REIL RWY 22; PAPI RWY 22; MIRL RWY 04/22 - CTAF.
N/A
Yes - Lighted
Yes
No
Tie-Down
NOT a Landing Rights Airport
NOT an Airport of Entry
None
None
None
None
None

Runway 04/22

4203 ft. x 75 ft.
ASPH  
Good 
NONE 
MED 
 
26,000lbs 
-- 
-- 
-- 
  Runway 04 Runway 22
True Heading 51°231°
Traffic Pattern Left Right
Markings BSC NPI
Markings Condition GOOD GOOD
Latitude 47° 55' 06"N 47° 55' 32"N
Longitude 119° 05' 23"W 119° 04' 35"W
Elevation 1,589' 1,589'
Threshold Crossing Height -- 53 ft. AGL
Visual Glide Path Angle -- 4.2°
Visual Slope Indicator -- P2L
Approach Lights
Centerline Lights
Runway End Identifier Lights Yes
A110-1GEESE & WILDLIFE INVOF RWY.
A110-2FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
A58-0415 FT TREE 61 FT FM THR, 73 FT LEFT & DITCH 27 FT FM THR, 91 FT RIGHT.
A58-22BRUSH 79 FT RIGHT; SLP & BRUSH 100 FT FM THR, 99 FT LEFT.
A75-TPILOTS BRING OWN ROPES.
A81-APTACTVT REIL RWY 22; PAPI RWY 22; MIRL RWY 04/22 - CTAF.
GRAND COULEE DAM (IATA: 3W7) is a public airport located in ELECTRIC CITY, WA, US.