AirNav: WN43 - Lower Granite Dam Heliport

WN43

Lower Granite Dam Heliport
Colfax, Washington, USA

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FAA INFORMATION EFFECTIVE 14 MAY 2026

Location

FAA Identifier:	WN43
Lat/Long:	46-39-40.9500N 117-26-16.7600W 46-39.682500N 117-26.279333W 46.6613750,-117.4379889 (estimated)
Elevation:	652 ft. / 199 m (estimated)
Variation:	19E (1984)
From city:	14 miles S of COLFAX, WA
Time zone:	UTC -7 (UTC -8 during Standard Time)
Zip code:	99347

Heliport Operations

Heliport use:	Private use. Permission required prior to landing
Activation date:	06/1984
Control tower:	no
ARTCC:	SEATTLE CENTER
FSS:	SEATTLE FLIGHT SERVICE STATION
Attendance:	MON-FRI 0730-1600
Wind indicator:	yes
Segmented circle:	no

Heliport Communications

WX ASOS at PUW (14 nm E):

135.675 (509-334-3222)

Nearby radio navigation aids

VOR radial/distance		VOR name		Freq		Var
PUWr245/8.9		PULLMAN VOR/DME		117.15		20E
MQGr286/28.9		NEZ PERCE VOR/DME		114.45		20E

Heliport Services

Runway Information

Helipad H1

Dimensions:	28 x 28 ft. / 9 x 9 m
Surface:	asphalt, in good condition
Latitude:	46-39.682500N
Longitude:	117-26.279333W
Elevation:	652.0 ft.
Traffic pattern:	left	left

Heliport Ownership and Management from official FAA records

Ownership:	Publicly-owned
Owner:	U.S. ARMY CORPS OF ENGINEERS 885 ALMOTA FERRY RD POMEROY, WA 99347 Phone 509-843-1493
Manager:	MARTIN T. MENDIOLA 885 ALMOTA FERRY RD POMEROY, WA 99347 Phone 509-843-2251

Additional Remarks

A52-H1	800' TERRAIN 1300' SOUTH, 500' PLINE 2600' SE.
-	FOR CD CTC SEATTLE ARTCC AT 253-351-3694.

Instrument Procedures

There are no published instrument procedures at WN43.

Some nearby airports with instrument procedures:

KPUW - Pullman/Moscow Regional Airport (14 nm E)
KLWS - Lewiston/Nez Perce County Airport (25 nm SE)
KALW - Walla Walla Regional Airport (49 nm SW)
KGEG - Spokane International Airport (58 nm N)
KSKA - Fairchild Air Force Base (58 nm N)

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Area around WN43 (Lower Granite Dam Heliport)

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Aerial photo

Sectional chart

Airport distance calculator
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Sunrise and sunset

Times for 18-May-2026

	Local (UTC-7)	Zulu (UTC)
Morning civil twilight	04:37	11:37
Sunrise	05:13	12:13
Sunset	20:20	03:20
Evening civil twilight	20:56	03:56

Current date and time

Zulu (UTC)	19-May-2026 03:31:09
Local (UTC-7)	18-May-2026 20:31:09

METAR

KPUW 14nm E	190253Z AUTO 00000KT 10SM FEW110 13/04 A3013 RMK AO2 SLP206 T01280039 53003 $
KLWS 25nm SE	190256Z 09005KT 10SM FEW090 17/03 A3010 RMK AO2 SLP192 T01720028 53003

TAF

KPUW
14nm E

181720Z 1818/1918 VRB04KT P6SM SCT025 TEMPO 1818/1819 BKN025 FM181930 27007KT P6SM SCT050 BKN100 FM190300 VRB02KT P6SM SCT100 BKN200 FM191300 10007KT P6SM BKN130

NOTAMs

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