Beaver Dam Lake Seaplane Base Seaplane BasePrivate
1WI5 · Randolph, WI · Non-towered
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-07 · night begins 08:43 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:20 AM | 10:20Z |
| Sunrise | 05:51 AM | 10:51Z |
| Sunset | 08:11 PM | 01:11Z |
| Evening civil twilight Loggable night begins | 08:43 PM | 01:43Z |
Plan a flight from 1WI5
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
Airspace hazards
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Runways
| Runway | Length | Your margin |
|---|---|---|
| 05/23 | 10,000 ft | |
| 09/27 | 5,000 ft | |
| 18/36 | 5,000 ft |
Prefer one flat page? Full runway details for 1WI5 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 1WI5 kneeboard →
Comms & NavAids
Nearby navigation aids
MSN 108.60 · OSH 116.75 · DLL 117.00 · +2
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| MSN · Madison | VORTAC | 108.60 · 23X | Low | r034° / 27.9 NM |
| OSH · Oshkosh | VOR/DME | 116.75 · 114Y | Low | r209° / 33.3 NM |
| DLL · Dells | VORTAC | 117.00 · 117X | High | r090° / 35.4 NM |
| BJB · West Bend | VOR | 109.80 | Terminal | r280° / 36.5 NM |
| BAE · Badger | VOR/DME | 116.40 · 111X | High | r308° / 37.7 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for 1WI5 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 1WI5
- Coordinates
- 43.5150, -88.9526
- Elevation
- 871 ft MSL
- Magnetic variation
- 0W
- Sectional chart
- CHICAGO
- Airport use
- Private
- Control tower
- No
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- GREEN BAY · 122.2 · 1-800-WX-BRIEF
- Attendance
- ALL DALGT
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1966/05
- Distance from city
- 3 SE
Services fuel · repairs · oxygen · attendance
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management 2 contacts
Remarks FAA · 4 notes
General
- OWNER INDICATES PILOTS LAND AT OWN RISK OR EMERGENCY.
- CONCRETE RAMP UP ONTO SHORE; TIE DOWNS ON SHORE.
- FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
Contact
- IN BEAVER DAM ONE 414-326-3158.
Nearby airports
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Also nearby: 6WN6 Fountain Prairie Airport (private) (8 NM) · WI07 Waupun Airport (private) (10 NM) · 4WI1 Bancroft East Airport (private) (10 NM) · 7WI2 Higgins Airport (private) (11 NM) · 13WI Nowatzski Field (private) (11 NM)
About 1WI5
Beaver Dam Lake Seaplane Base (1WI5) is a seaplane base in Randolph, WI, at 871 ft MSL. It has 3 runways, the longest 10,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 1WI5, refreshed from the Aviation Weather Center and FAA NASR.
Does 1WI5 have a control tower?
No. Beaver Dam Lake Seaplane Base is a non-towered (pilot-controlled) seaplane base; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 1WI5?
Beaver Dam Lake Seaplane Base has 3 runways; the longest is 10,000 ft. See the Runways section for headings, surface, and lighting.
Where is 1WI5?
Beaver Dam Lake Seaplane Base is in Randolph, WI, at an elevation of 871 ft MSL. Coordinates: 43.5150, -88.9526.
Fly out of 1WI5 often?
Save 1WI5 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
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 1WI5 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.