Alton Bay Seaplane Base

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Alton Bay Seaplane Base
Alton Bay Airport (B18) in winter.jpg
Airport typePublic
OwnerState of New Hampshire
ServesAlton Bay, New Hampshire
Elevation AMSL504 ft / 154 m
Coordinates43°28′39″N 071°14′13″W / 43.47750°N 71.23694°W / 43.47750; -71.23694
WebsiteAlton Bay Seaplane Base Website
Direction Length Surface
ft m
1/19 2,600 792 Water / Ice
Statistics (2011)
Aircraft operations600

Alton Bay Seaplane Base (FAA LID: B18) is a state-owned, public-use seaplane base located in a cove of Lake Winnipesaukee. The base is two nautical miles (4 km) north of the central business district of Alton Bay, in Belknap County, New Hampshire, United States.[1]

Facilities and aircraft[edit]

Alton Bay Seaplane Base has one seaplane landing area designated 1/19 and measuring 2,600 x 100 feet (792 x 30 m). For the 12-month period ending 31 December 2011, the airport had 600 general aviation aircraft operations, an average of 50 per month.[1]

During the winter months, the base may seasonally open an ice runway instead of the normal seaplane landing area. This is the only FAA approved ice runway in the contiguous United States.[2] The earliest the ice runway has opened is January 10. It is required to close no later than March 15.[3]


  1. ^ a b c FAA Airport Master Record for B18 (Form 5010 PDF), effective 2015-01-08
  2. ^ "Pilots Take Advantage Of Runway On Frozen Lake Winnipesaukee". CBS Boston. February 28, 2015. Retrieved 2015-03-01.
  3. ^ Mike Collins (January 23, 2014). "Alton Bay ice airport opens for 2014 season". AOPA. Retrieved 2015-03-01.

External links[edit]