Alton Bay Seaplane Base

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Location

Latitude: 
 43-28-39.3000N (43.477583)
Longitude: 
 071-14-13.2000W (-71.237)
Elevation: 
 504.0 feet MSL (154 m MSL)
Magnetic Variation: 
 14.2 W (as of December 2025 from WMM2020 model)
Time Zone: 
 UTC -5.0 (Standard Time)
UTC -4.0 (Daylight Savings Time)
From City: 
 02 N.M. N of Alton Bay, New Hampshire
Found On: 
 New York Chart
FAA Region: 
 ANE

Contacts

Manager: 
Publicly owned: 
JASON LEAVITT
7 HAZEN DR, PO BOX 483
CONCORD, NH 03302
603-545-2315		 STATE OF NEW HAMPSHIRE
NHDOT, AERONAUTICS, 7 HAZEN DR
CONCORD, NH 03302
603-271-2552

Operations

Airport Status: 
 Operational
Facility Use: 
 Public
Type: 
 Seaplane Base
Activation Date: 
 02/1994
Control tower: 
 No
Attendance (Months/Days/Hours): 
 Months/Days/Hours
Unattended
Boundary ARTCC: 
 ZBW (Boston)
Responsible ARTCC: 
 ZBW (Boston)
Segmented Circle Indicator: 
 No
Traffic Pattern Altitude (MSL): 
 1504 feet (458 m)
NOTAMs Facility: 
 BGR
NOTAM-D Service: 
 Yes

Based Aircraft

Annual Operations (as of )

Communications

CTAF:  122.800
Unicom:  122.800

       

    Fixed Based Operators (FBOs) & Fuel

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    Area Code: 603
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    Flight Service Stations

    Primary Alternate
    FSS on Field: 
    FSS Name (ID):  Bangor(BGR)
    Frequency: 
    Toll Free Phone:  1-800-WX-BRIEF

    Instrument Procedures / Charts

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    Navigation Aids (Navaids) near B18

    Navigational Aid (NAVAID) distances from the airport are listed in Nautical Miles (NM).

    Nearby Airports with Fuel

    Dist (NM) Name (Airport IDs) True Hdg Mag Hdg Fuel Grade
    9.7 Laconia Municipal Airport
    (LCI KLCI LCI)    		 306 320 100LL, Jet A, Jet A+
    17.7 Skyhaven Airport
    (KDAW DAW)    		 130 144 100LL
    20.1 Concord Municipal Airport
    (CON KCON CON)    		 215 229 100LL, Jet A
    23.6 Sanford Seacoast Regional Airport
    (SFM KSFM SFM)    		 102 116 100LL, Jet A, MOGAS
    29.9 Limington-Harmon Airport
    (63B)    		 54 68 100LL
    33.3 Biddeford Municipal Airport
    (B19)    		 91 105 100LL
    33.8 Manchester Boston Regional Airport
    (MHT KMHT MHT)    		 194 208 100LL, Jet A
    35.7 Hampton Airfield Airport
    (7B3)    		 149 163 100LL, MOGAS
    41.6 Portland International Jetport Airport
    (PWM KPWM PWM)    		 75 90 100LL, Jet A
    43.4 Boire Field Airport
    (ASH KASH ASH)    		 196 210 100LL, Jet A-1+
    45.9 Lawrence Municipal Airport
    (LWM KLWM LWM)    		 173 187 100LL, Jet A, Jet A+
    47.3 Lebanon Municipal Airport
    (LEB KLEB LEB)    		 281 295 100LL, Jet A
    49.2 Dean Meml Airport
    (5B9)    		 317 331 100LL
    49.7 Claremont Municipal Airport
    (CNH KCNH CNH)    		 262 276 100LL
    52.3 Oxford County Regional Airport
    (81B)    		 38 53 100LL
    52.5 Jaffrey Airfield Silver Ranch Airport
    (AFN KAFN AFN)    		 219 233 100LL
    53.7 Auburn/Lewiston Municipal Airport
    (LEW KLEW LEW)    		 50 65 100LL, Jet A-1+
    55.0 Mount Washington Regional Airport
    (HIE KHIE HIE)    		 346 360 100LL
    55.4 Beverly Regional Airport
    (BVY KBVY BVY)    		 165 179 100LL, Jet A, Jet A+
    56.4 Hartness State (Springfield) Airport
    (VSF KVSF VSF)    		 262 276 100LL, Jet A, Jet A+

    Notices to Airmen (NOTAMS)

    NOTAMs

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    Remarks

    A11 PUBLIC WATERS OF THE STATE OF NH.
    A110-1 RWY 01W/19W PWRLINE MKD WITH ORANGE BALLS 1000 FT S OF THR AT S END; LESS THAN 30 FT HGT ALG ROADWAY.
    A110-2 ALL SEAPLANE TKOFS & LDGS MUST BE N OF THE BANDSTAND. ALL TVL S OF THE BANDSTAND MUST NOT EXCEED HEADWAY SPD.
    A110-3 FOR SEAPLANE PRKG & ICE RWY CONDS CALL AMGR 603-545-2315.
    A110-4 FOR CD CTC BOSTON APCH 603-594-5552.
    A110-5 TKOF & LDG USING RWY 19W PROHIBITED JAN - MAR.
    A30-01W/19W RWY 01W THLD APRXLY 100 FT NE OF FLOATING BANDSTAND.
    A33-01W/19W RWY 01W/19W HAS ICE IN WINTER PLOWED TO APRXLY 2730 FT. CK NOTAMS FOR ICE RWY CONDS.
    E111 VFR USE ONLY.

    Runways

    Runway Summary

    Runways: 01W/19W
    Longest Runway: 01W/19W is 2600 ft (792 m) long
    Runways with an Instrument Approach:

    B18 Airport Runway Details

    Runway 01W/19W  2600 ft x 100 ft (792 m x 30 m)
    Surface:  Water - Excellent condition - No special surface treatment

    Runway 01W

    Runway 19W
    Glide Path Angle: 
    		 0.0 degrees 0.0 degrees
    Object at End: 
    		 BLDG
    Object Height: 
    		 12
    Distance from End: 
    		 161
    Object Centerline Offset: 
    		 109 ft. left of centerline

    Services

    Airframe Repair: 
    		 Major
    Powerplant Repair: 
    		 Major
    Bottled Oxygen: 
    		 None
    Bulk Oxygen: 
    		 None
    Fuel Available: 
    		 100LL, Jet A, Jet A+
    Landing Fees: 
    		 No
    Parking: 
    		 Hangars and tiedowns available

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    Maps & Diagrams

    B18 Sectional

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    B18 Diagram


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