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Casco Bay Bridge

Bascule drawbridge

Casco Bay Bridge is a bascule drawbridge with 55 ft closed, opening to unrestricted height.

Closed clearance
55 ft
at mean high water
Open clearance
Unlimited
span raised
Horizontal
196 ft
channel width
Location
43.643°, -70.258°
Maine

Clearances are from NOAA charts, referenced to mean high water. Actual clearance is lower at higher tides and storm surge. Always confirm against your vessel's air draft and the posted clearance gauge before transiting.

How to request an opening

Hail on VHF-FM
Ch 13
standard drawbridge channel
Bridge tender
Sound signal
no published phone — use VHF or horn
Advance notice
On signal
no advance notice
Operating schedule

This drawbridge has no special schedule in our dataset, so it generally opens on signal under the Coast Guard's general rules. Hail the tender on VHF-FM Channel 13 or sound the required signal. See Maine drawbridge regulations (33 CFR 117).

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Frequently asked

What is the clearance under Casco Bay Bridge?+

Casco Bay Bridge is a bascule drawbridge. Its closed vertical clearance is about 55 ft, and it opens to unrestricted height. Heights are referenced to mean high water (MHW).

How do I get Casco Bay Bridge to open?+

Contact the bridge tender on VHF-FM Channel 13, or sound the required signal. It generally opens on signal under the Coast Guard's general drawbridge rules (33 CFR 117).

Nearby bridges

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