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

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
Operational
47° 55' 19"N 119° 04' 59"W
1593' MSL
2593' MSL
15E
None Listed
SEATTLE (SEA)
SEATTLE
SEATTLE (ZSE)
1/22/26-2/19/26
K3W7 LIFR
11:55 PM PST  
Mist
Overcast 200'
5sm
36°F
36°F
30.15"Hg
Calm
AO2
METAR K3W7 010755Z AUTO 00000KT 5SM BR OVC002 02/02 A3015 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)
Sat, 1/31 9:33 PM PST
Sat, 1/31 10:00 PM PST - Sun, 2/1 10:00 PM PST
VFR
10:00 PM PST - 7:00 AM PST
Broken 25,000'
Few 800'
6sm
360° 5kts
IFR
7:00 AM PST - 10:00 AM PST
Overcast 500'
6sm
VRB° 4kts
MVFR
10:00 AM PST - 12:00 PM PST
Overcast 1,200'
6sm
VRB° 4kts
VFR
10:00 AM PST - 12:00 PM PST
Light Rain
No Clouds
N/A
Calm
VFR
12:00 PM PST - 1:00 PM PST
Light Rain
No Clouds
N/A
Calm
MVFR
12:00 PM PST - 1:00 PM PST
Overcast 3,000'
6sm
190° 5kts
MVFR
1:00 PM PST - 2:00 PM PST
Broken 3,000'
6sm
180° 6kts
VFR
2:00 PM PST - 10:00 PM PST
Broken 6,000'
6sm
190° 7kts
TAF KMWH 010533Z 0106/0206 36005KT P6SM FEW008 BKN250
   FM011500 VRB04KT P6SM OVC005
   FM011800 VRB04KT P6SM OVC012
   PROB30 0118/0120 -RA
   FM012000 19005KT P6SM OVC030
   PROB30 0120/0121 -RA
   FM012100 18006KT P6SM BKN030
   FM012200 19007KT P6SM BKN060
3W7
EffectiveExpiresCategoryNOTAM
Domestic
12/8/25
1644Z
2/8/26
2359Z
!SEA 12/118 3W7 OBST TOWER LGT (ASR 1295133) 475724.10N1190055.30W (3.4NM NE 3W7) 2588.3FT (261.2FT AGL) U/S 2512081644-2602082359
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.