US Bridges

Back Ridge RD over Captain Ambrose Bear Str

Fair

Aroostook County, Maine · 0.2 MI North of Town Line · Structure no. 6204

Built
1992
33 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
44 ft
1 main span
Daily traffic
157
2016 count
Owner
State
State Highway Agency

About this bridge

Back Ridge RD over Captain Ambrose Bear Str is a concrete slab carrying Back Ridge RD over Captain Ambrose Bear Str in Aroostook County, Maine. It was built in 1992, so it is 33 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 157 vehicles a day, roughly 5% of them trucks, projected to reach 251 by 2036. The structure is 44 ft (13.4 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBack Ridge RD
CrossesCaptain Ambrose Bear Str
Location0.2 MI North of Town Line
RouteCity Street 0
CountyAroostook County
StateMaine
Coordinates46.18785, -67.89337
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating83.2 US tons
Inventory rating64.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length44 ft (13.4 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic157 (2016)
Projected traffic251 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Back Ridge RD over Captain Ambrose Bear Str built?

It was built in 1992, making it 33 years old in 2025.

What condition is Back Ridge RD over Captain Ambrose Bear Str 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 May 2024.

How much traffic does Back Ridge RD over Captain Ambrose Bear Str carry?

About 157 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Back Ridge RD over Captain Ambrose Bear Str?

The structure is 44 ft (13.4 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns Back Ridge RD over Captain Ambrose Bear Str?

It is owned by the State Highway Agency.