Alton Bay Seaplane Base & Ice Rwy
B18 · Alton Bay, New Hampshire · Belknap County · map
Alton Bay Seaplane Base & Ice Rwy is a public-use airfield owned by the State of New Hampshire, 2 miles north of Alton Bay, New Hampshire, 504 feet above sea level. It has 1 water landing area.
The airport
- Codes
- FAA B18
- Kind
- Airfield · open to the public · publicly owned
- Owner
- State of New Hampshire
- Elevation
- 504 feet above sea level
- Control tower
- No control tower
- Attended
- unattended
- On the chart
- New York sectional
- Magnetic variation
- 16W
- In the FAA's files since
- February 1994
Runway
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 01W/19W | 2,600 × 100 ft | Water, excellent |
- Runway 01W: pole 26 ft high 100 ft from the end
Radio frequencies
| Common traffic advisory (CTAF) · UNICOM | 122.8 |
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
Aircraft registered in Alton Bay from the FAA register
6 aircraft are registered to owners in Alton Bay, New Hampshire: 3 helicopters, 2 piston twins, 1 piston single. Not every one of them is based at this airfield; the based-aircraft count above is the FAA's figure for this airfield alone.
Individuals are counted, never named. All aircraft registered in New Hampshire.
Accidents and incidents at or near this airfield NTSB records · 5 since 1982, 0 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English.
Nearby within 30 nautical miles
The FAA's remarks as written in the airport file
- VFR use only.
- Runway 01W/19W pwrline marked with orange balls 1000 feet south of threshold at south end; less than 30 feet height alg roadway.
- Public waters of the state of NH.
- Runway 01W thld approximately 100 feet northeast of floating bandstand.
- Runway 01W/19W has Ice in winter plowed to approximately 2600 feet. CK NOTAMs for Ice runway conditions.
- All seaplane takeoffs and landings must be north of the bandstand. All tvl south of the bandstand must not exceed headway spd.
- Takeoff and landing using runway 19W prohibited jan - mar.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 5, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.