Lower Granite Dam Heliport HeliportPrivate

WN43 · Colfax, WA · 652 ft elevation · var 19E · Non-towered

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

FAA LID: WN43
Coordinates: 46.6613, -117.4380
Elevation: 652 ft MSL
Magnetic variation: 19E
Sectional chart: SEATTLE
Airport use: Private
Control tower: No
ARTCC: SEATTLE (ZSE)
Flight service (FSS): SEATTLE · 122.5 · 1-800-WX-BRIEF
Attendance: MON-FRI 0730-1600
Segmented circle: No
Wind indicator: yes
Activated: 1984/06
Distance from city: 14 S

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-23

Event	Local (PDT)	UTC
Morning civil twilight Loggable night ends	04:17 AM	11:17Z
Sunrise	04:57 AM	11:57Z
Sunset	08:47 PM	03:47Z
Evening civil twilight Loggable night begins	09:27 PM	04:27Z

Loggable night (§1.1)

09:27 PM → 04:17 AM

Night currency (§61.57)

09:47 PM → 03:57 AM

Plan a flight from WN43

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Runway H1/

28 ft × 28 ft · Asphalt (Good)

Heading: n/a
Threshold elev: 652 ft
Traffic pattern: Left

Heading: n/a

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
H1/	28 ft

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
PUW · Pullman	VOR-DME	109.00	r245° / 8.9 NM
MQG · Nez Perce	VOR-DME	108.20	r286° / 28.9 NM

VFR sectional

Open WN43 on the VFR sectional (SkyVector) ↗

No published instrument procedures or Chart Supplement for WN43. VFR sectional link above.

Ownership & management

Owner

U.S. ARMY CORPS OF ENGINEERS

885 ALMOTA FERRY RD, POMEROY, WA

509-843-1493

Manager

MARTIN T. MENDIOLA

885 ALMOTA FERRY RD, POMEROY, WA

509-843-2251

Remarks FAA

General

FOR CD CTC SEATTLE ARTCC AT 253-351-3694.

Obstructions

800' TERRAIN 1300' SOUTH, 500' PLINE 2600' SE.

Nearby airports

00W · Lower Granite State Airport (1 NM)58WA · Dye Seed Ranch AirportPrivate (9 NM)S94 · Port of Whitman Business Air Center Airport (12 NM)70WA · Whitman Community Hospital HeliportHeliportPrivate (13 NM)KPUW · Pullman-Moscow Regional Airport (14 NM)3ID3 · Estes AirportPrivate (18 NM)

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open WN43 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.

About WN43

Lower Granite Dam Heliport (WN43) is a heliport in Colfax, WA, at 652 ft MSL. It has 1 runway, the longest 28 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for WN43, refreshed from the Aviation Weather Center and FAA NASR.

Does WN43 have a control tower?

No. Lower Granite Dam Heliport is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM on the Comms & NavAids tab.

What is the longest runway at WN43?

Lower Granite Dam Heliport has 1 runway; the longest is 28 ft. See the Runways tab for headings, surface, and lighting.

Where is WN43?

Lower Granite Dam Heliport is in Colfax, WA, at an elevation of 652 ft MSL. Coordinates: 46.6613, -117.4380.

Fly out of WN43 often?

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