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WN84 Lower Monumental Dam Heliport
Kahlotus, Washington, USA

GOING TO KAHLOTUS?

FAA INFORMATION EFFECTIVE 01 OCTOBER 2026

Location

FAA Identifier: WN84
Lat/Long: 46-33-42.9400N 118-32-45.4200W
46-33.715667N 118-32.757000W
46.5619278,-118.5459500
(estimated)
Elevation: 465 ft. / 142 m (estimated)
Variation: 19E (1985)
Time zone: UTC -7 (UTC -8 during Standard Time)
Zip code: 99371

Heliport Operations

Heliport use: Private use. Permission required prior to landing
Activation date: 09/1987
Control tower: no
ARTCC: SEATTLE CENTER
FSS: SEATTLE FLIGHT SERVICE STATION
Attendance: UNATNDD
Wind indicator: yes
Segmented circle: yes

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
PSCr038/29.4PASCO VOR/DME113.7515E
ALWr326/30.4WALLA WALLA VOR/DME116.4014E

Heliport Services

Runway Information

Helipad H1

Dimensions: 200 x 200 ft. / 61 x 61 m
Surface: asphalt
Latitude: 46-33.715667N
Longitude: 118-32.757000W
Elevation: 465.0 ft.
Traffic pattern: leftleft

Heliport Ownership and Management from official FAA records

Ownership: Publicly-owned
Owner: U.S. ARMY CORPS OF ENGINEERS
1215 E AINSWORTH AVE
PASCO, WA 99301
Phone 509-282-3218
Manager: ROBERT WITHAM
LOWER MONUMENTAL LOCK AND DAM, 5520 DEVILS CANYON ROAD
KAHLOTUS, WA 99335
Phone 509-282-7253

Additional Remarks

- FOR CD CTC CHINOOK APCH AT 509-542-4209, WHEN APCH CLSD CTC SEATTLE ARTCC AT 253-351-3694.

Instrument Procedures

There are no published instrument procedures at WN84.

Some nearby airports with instrument procedures:

KPSC - Tri-Cities Airport (30 nm SW)
KALW - Walla Walla Regional Airport (30 nm S)
KRLD - Richland Airport (35 nm SW)
KMWH - Grant County International Airport (50 nm NW)
KHRI - Hermiston Municipal Airport (53 nm SW)
  
Loc | Ops | Rwys | IFR | FBO | Links
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Area around WN84 (Lower Monumental Dam Heliport)
 
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Aerial photo
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Sectional chart

 
Airport distance calculator
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From to WN84

Sunrise and sunset
Times for 24-Oct-2026
 Local
(UTC-7)		 Zulu
(UTC)
Morning civil twilight06:5513:55
Sunrise07:2614:26
Sunset17:5100:51
Evening civil twilight18:2201:22

Current date and time
Zulu (UTC)  24-Oct-2026 10:04:48
Local (UTC-7)  24-Oct-2026 03:04:48
 
METAR
KPSC 
30nm SW 		240953Z AUTO 00000KT 10SM CLR 01/00 A3030 RMK AO2 SLP260 T00060000
KALW 
30nm S 		240953Z AUTO 12003KT 10SM CLR 07/M01 A3028 RMK AO2 SLP255 T00671011
KRLD 
35nm SW 		240955Z AUTO 31004KT 7SM CLR 04/03 A3030 RMK AO2 T00350026
KMWH 
50nm NW 		240952Z AUTO 15003KT 10SM CLR 01/M06 A3028 RMK AO2 SLP260 T00061056
TAF
KPSC 
30nm SW 		240520Z 2406/2506 VRB03KT P6SM SKC
KALW 
30nm S 		240520Z 2406/2506 15006KT P6SM SKC
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