US Bridges

Barters Island RD over Back River (tidal Pass)

Good

Lincoln County, Maine · 1.7 MI E Townline · Structure no. 2438

Built
2011
14 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
545 ft
8 main spans
Daily traffic
1,660
2016 count
Owner
State
State Highway Agency

About this bridge

Barters Island RD over Back River (tidal Pass) is a prestressed concrete stringer/multi-beam or girder carrying Barters Island RD over Back River (tidal Pass) in Lincoln County, Maine. It was built in 2011, so it is 14 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,660 vehicles a day, roughly 5% of them trucks, projected to reach 2,490 by 2036. The structure is 545 ft (166.1 m) long and 26 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesBarters Island RD
CrossesBack River (tidal Pass)
Location1.7 MI E Townline
RouteCounty Highway 0
StateMaine
Coordinates43.88001, -69.66286
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating77.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans8
Design loadGreater than HL 93
Structure length545 ft (166.1 m)
Longest span70 ft (21.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,660 (2016)
Projected traffic2,490 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Barters Island RD over Back River (tidal Pass) built?

It was built in 2011, making it 14 years old in 2025.

What condition is Barters Island RD over Back River (tidal Pass) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Barters Island RD over Back River (tidal Pass) carry?

About 1,660 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Barters Island RD over Back River (tidal Pass)?

The structure is 545 ft (166.1 m) long with a longest span of 70 ft (21.3 m) and a deck 26 ft wide.

Who owns Barters Island RD over Back River (tidal Pass)?

It is owned by the State Highway Agency.