US Bridges

I 95 NB over Sebasticook River

Fair

Somerset County, Maine · 1 MI S Townline · Structure no. 5990

Built
1964
61 years old, rebuilt 2018
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
227 ft
3 main spans
Daily traffic
8,120
2016 count
Owner
State
State Highway Agency

About this bridge

I 95 NB over Sebasticook River is a steel continuous stringer/multi-beam or girder carrying I 95 NB over Sebasticook River in Somerset County, Maine. It was built in 1964 and reconstructed in 2018, so it is 61 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 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 8,120 vehicles a day, roughly 5% of them trucks, projected to reach 11,368 by 2036. The structure is 227 ft (69.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 95 NB
CrossesSebasticook River
Location1 MI S Townline
RouteState Highway 95
StateMaine
Coordinates44.80133, -69.39054
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length227 ft (69.2 m)
Longest span85 ft (25.9 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,120 (2016)
Projected traffic11,368 by 2036
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 95 NB over Sebasticook River built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2018.

What condition is I 95 NB over Sebasticook 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 I 95 NB over Sebasticook River carry?

About 8,120 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is I 95 NB over Sebasticook River?

The structure is 227 ft (69.2 m) long with a longest span of 85 ft (25.9 m) and a deck 43 ft wide.

Who owns I 95 NB over Sebasticook River?

It is owned by the State Highway Agency.