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B18 · Alton Bay Seaplane Base

FAA-LID · US · 5 NTSB events

ID B18 Elev 504 ft Lat 43° 28.66' N Lon 71° 14.22' W Zulu …

Live conditions

METAR

fetching…

Wind / Visibility

—

Density altitude (now)

—

Decode in METAR tool TAF on AWC ↗ NOTAMs ↗

Aerial view

No FAA diagram published

Imagery © Esri, Maxar, Earthstar Geographics, USDA FSA

Runways

2 runway ends on file. Longest: 2,600 ft.

Designator Heading Length Width Surface Lighting Gradient
01 — 2,600 ft 100 ft WATER-E No —
19 — 2,600 ft 100 ft WATER-E No —

Lengths + headings: in-app airport database. Surface, width, lighting: OurAirports. Gradient: derived from FAA NASR runway-end elevations (NASR's RWY_GRAD field is empty in 99.99% of rows).

Chart Supplement remarks, plain English · 0 matched · 10 not yet translated

Translations anchored to the FAA text; the raw FAA text is authoritative.

Not yet translated · raw FAA text (10 sentences)
  • ·PUBLIC WATERS OF THE STATE OF NH.
  • ·RWY 01W/19W PWRLINE MKD WITH ORANGE BALLS 1000 FT S OF THR AT S END; LESS THAN 30 FT HGT ALG ROADWAY.
  • ·ALL SEAPLANE TKOFS & LDGS MUST BE N OF THE BANDSTAND.
  • ·ALL TVL S OF THE BANDSTAND MUST NOT EXCEED HEADWAY SPD.
  • ·FOR SEAPLANE PRKG & ICE RWY CONDS CALL 603-271-7398.
  • ·FOR CD CTC BOSTON APCH 603-594-5552.
  • ·TKOF & LDG USING RWY 19W PROHIBITED JAN - MAR.
  • ·RWY 01W THLD APRXLY 100 FT NE OF FLOATING BANDSTAND.
  • ·RWY 01W/19W HAS ICE IN WINTER PLOWED TO APRXLY 2600 FT.
  • ·CK NOTAMS FOR ICE RWY CONDS.

Field profile

Wikipedia

Full article ↗

Alton Bay Seaplane Base 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.

Use

Public-use

Ownership

Public

Scheduled service

No

NTSB events

5 NTSB-recorded events on file at this airport .

Total events

5

since 1982

Fatal

0

0.0% of total

Last 5 years

1

≈ 0.2/yr

Last 10 years

1

≈ 0.1/yr

Ranking across all airports · Open in accident map ↗

Last 10 years · n=1

  • Undershoot / overshoot 1

All time · n=5

  • Other 1
  • Stall / spin 1
  • Ground collision 1
  • Loss of control 1
  • Undershoot / overshoot 1

Categories rule-matched from NTSB findings and probable-cause text. "Other" = not enough agency text to classify.

Date Aircraft · Classification · Wx Sev
2025-02-23 Beech A36 · Under/overshoot · day →
2010-02-14 Piper PA-28-236 · Loss of control · day →
2007-02-11 Maule MXT-7-180A · Ground collision · day →
2000-02-05 Piper PA-24 · Stall / spin · VMC · day →
1983-07-21 Piper PA-28R-200 · Other · day →

Designees in NH

CFI Flight Instructors 522 A&P Mechanics 913 AME Medical Examiners (AME) 16 DME Mechanic Examiners (DME) 3 DAR-F Manufacturing Airworthiness (DAR-F) 1 DER-Y Engineering — Company (DER-Y) 1 DER-T Engineering — Consultant (DER-T) 3 SAE Specialty Aircraft Examiners (SAE) 8 Schools Flight Schools 16 FBO Fixed Base Operators 13 Clubs Flying Clubs 18 Repair Repair / Maintenance Shops 2 EAA EAA Chapters 2

DPEs nearby

Distance is city-centroid to airport, a first cut, not the exam location.

Designee City ST Distance
James Victor Loranger Gilford NH 7 nm
Mark Albert Favolise Sanford ME 21 nm
Christopher Allen Thresher Manchester NH 31 nm
Jared Patrick Curtis North Hampton NH 37 nm
James Victor Loranger Gorham ME 37 nm
Michael Rhodes Nashua NH 45 nm
Marvin Randall Williams Portland ME 47 nm
Donald Wood Plainfield NH 49 nm
Gregory Stuart Livernois Keene NH 56 nm
Sean Anthony Brodeur Bedford MA 61 nm

Showing 10 closest of ~1,400 DPEs nationwide. Source: FAA Designee Locator.

CFIs nearby

City-centroid distance; ratings as on the FAA certificate.

Instructor City ST Distance
Leah Debra Read Alton Bay NH 0 nm
Pamela Jo Cooley New Durham NH 3 nm
Michael Lewy Hoffman New Durham NH 3 nm
John Francis Radcliffe Jr New Durham NH 3 nm
Jody Ann Waring Gilmanton Iw NH 5 nm
David Robert Linares Gilmanton Iw NH 5 nm
Edward Judson Millspaugh Center Barnstead NH 6 nm
Steven Emery Lemieux Barnstead NH 6 nm
Lauris Earle Avery Jr Gilford NH 7 nm
Staci Jo Schoenrock Gilford NH 7 nm

Showing 10 closest of ~70,900 active CFIs nationwide. Source: FAA Airmen Certification Database.

A&P mechanics nearby

City-centroid distance. A = airframe, P = powerplant, IA = inspection authorization.

Mechanic City ST Distance
Robert Lawrence Bourke Alton Bay NH 0 nm
Gary Linwood Nickerson Alton Bay NH 0 nm
Sean Patrick Mccracken Alton Bay NH 0 nm
Robert Thomas Caruolo Alton Bay NH 0 nm
Christopher Rae Burdzy Alton NH 1 nm
Donald Joseph Roques Alton NH 1 nm
George Walter Adams Alton NH 1 nm
Robert Leland Cleary Alton NH 1 nm
Timothy Mark Pellowe Alton NH 1 nm
Pamela Jo Cooley New Durham NH 3 nm

Showing 10 closest of ~248,300 certificated mechanics nationwide. Source: FAA Airmen Certification Database.

Repair stations nearby

By airport location.

Shop Distance
Craig Avionics
Concord, NH
 20 nm
Hampton Airfield Maintenance Shop
North Hampton, NH
 36 nm
Maine Aviation Aircraft Maintenance, LLC
Portland, ME
 42 nm
Air Bear Aviation
Danvers, MA
 55 nm
Green Mountain Avionics
Middlebury, VT
 86 nm
NexAir Avionics, LLC
Plymouth, MA
 89 nm
Maine Seaplanes, LLC
Owls Head, ME
 99 nm
AirFlyte, Inc. / Rectrix MRO
Westfield, MA
 103 nm
Windham Aircraft Repair
North Windham, CT
 114 nm
Stick'n Rudder Aero Maintenance, Inc.
Chatham, MA
 121 nm

Showing 10 closest of ~400 geocoded shops in the repair-station directory. Source: AOPA business listings.