US Bridges

Caribou RD over Fish River Thoroughfare

Fair

Aroostook County, Maine · 0.5 MI SE JCT RTE 162 · Structure no. 2851

Built
1974
51 years old, rebuilt 2011
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
94 ft
2 main spans
Daily traffic
1,870
2016 count
Owner
State
State Highway Agency

About this bridge

Caribou RD over Fish River Thoroughfare is a steel continuous stringer/multi-beam or girder carrying Caribou RD over Fish River Thoroughfare in Aroostook County, Maine. It was built in 1974 and reconstructed in 2011, so it is 51 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 1,870 vehicles a day, roughly 5% of them trucks, projected to reach 2,805 by 2036. The structure is 94 ft (28.7 m) long and 41 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesCaribou RD
CrossesFish River Thoroughfare
Location0.5 MI SE JCT RTE 162
RouteState Highway 161
StateMaine
Coordinates47.12978, -68.31803
Functional classRural Minor Arterial

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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span45 ft (13.6 m)
Deck width41 ft (12.4 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,870 (2016)
Projected traffic2,805 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Caribou RD over Fish River Thoroughfare built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2011.

What condition is Caribou RD over Fish River Thoroughfare 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 October 2023.

How much traffic does Caribou RD over Fish River Thoroughfare carry?

About 1,870 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Caribou RD over Fish River Thoroughfare?

The structure is 94 ft (28.7 m) long with a longest span of 45 ft (13.6 m) and a deck 41 ft wide.

Who owns Caribou RD over Fish River Thoroughfare?

It is owned by the State Highway Agency.