US Bridges

N Main ST over Carrabasset River

Fair

Somerset County, Maine · 200 Ft S JCT RTE 16 · Structure no. 2615

Built
1932
93 years old, rebuilt 1988
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
153 ft
1 main span
Daily traffic
4,581
2016 count
Owner
State
State Highway Agency

About this bridge

N Main ST over Carrabasset River is a steel stringer/multi-beam or girder carrying N Main ST over Carrabasset River in Somerset County, Maine. It was built in 1932 and reconstructed in 1988, so it is 93 years old, older 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 5 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 4,581 vehicles a day, roughly 5% of them trucks, projected to reach 6,413 by 2036. The structure is 153 ft (46.6 m) long and 48 ft wide. If it were closed, the detour would be 72.1 mi (116 km).

Location

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CarriesN Main ST
CrossesCarrabasset River
Location200 Ft S JCT RTE 16
RouteState Highway 201
CountySomerset County
StateMaine
Coordinates44.85406, -69.89609
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length153 ft (46.6 m)
Longest span147 ft (44.8 m)
Deck width48 ft (14.6 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,581 (2016)
Projected traffic6,413 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed72.1 mi (116 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 N Main ST over Carrabasset River built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1988.

What condition is N Main ST over Carrabasset River 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 N Main ST over Carrabasset River carry?

About 4,581 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is N Main ST over Carrabasset River?

The structure is 153 ft (46.6 m) long with a longest span of 147 ft (44.8 m) and a deck 48 ft wide.

Who owns N Main ST over Carrabasset River?

It is owned by the State Highway Agency.