US Bridges

Long Island Ferry over Casco Bay

Fair

Cumberland County, Maine · Casco Bay · Structure no. 6352

Built
1996
29 years old, rebuilt 2012
Condition
Fair
inspected February 2025
Type
Other
Wood or Timber
Length
20 ft
1 main span
Daily traffic
20
2014 count
Owner
State
State Highway Agency

About this bridge

Long Island Ferry over Casco Bay is a wood or timber other carrying Long Island Ferry over Casco Bay in Cumberland County, Maine. It was built in 1996 and reconstructed in 2012, so it is 29 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20 vehicles a day, projected to reach 20 by 2034. The structure is 20 ft (6.1 m) long and 20 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesLong Island Ferry
CrossesCasco Bay
LocationCasco Bay
RouteCity Street 0
CountyCumberland County
StateMaine
Coordinates43.69173, -70.16504
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.7 US tons
Inventory rating32.7 US tons

Structure

Structure typeOther
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width20 ft (6.1 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2014)
Projected traffic20 by 2034
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Long Island Ferry over Casco Bay built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2012.

What condition is Long Island Ferry over Casco Bay in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.

How much traffic does Long Island Ferry over Casco Bay carry?

About 20 vehicles per day (2014 count).

How long is Long Island Ferry over Casco Bay?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 20 ft wide.

Who owns Long Island Ferry over Casco Bay?

It is owned by the State Highway Agency.