Beaver Dam Lake Seaplane BasePrivate
1WI5 · Randolph, WI · Non-towered · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-23 · night begins 07:20 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:15 AM | 11:15Z |
| Sunrise | 06:44 AM | 11:44Z |
| Sunset | 06:52 PM | 23:52Z |
| Evening civil twilight Loggable night begins | 07:20 PM | 00:20Z |
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
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
| Runway | Length | Your margin |
|---|---|---|
| 05W/23W | 10,000 ft | |
| 09W/27W | 5,000 ft | |
| 18W/36W | 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 (private) (8 NM) · 4WI1 Bancroft East (private) (10 NM) · WI07 Waupun (private) (10 NM) · 7WI2 Higgins (private) (11 NM) · 13WI Nowatzski Field (private) (11 NM)
About 1WI5
Beaver Dam Lake (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 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 has 3 runways; the longest is 10,000 ft. See the Runways section for headings, surface, and lighting.
Where is 1WI5?
Beaver Dam Lake is in Randolph, WI, at an elevation of 871 ft MSL. Coordinates: 43.5150, -88.9526.
More about 1WI5
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.
Something here wrong or out of date? Report a data problem.