US Bridges

I 95 NB over Mattamiscontis Stream

Fair

Penobscot County, Maine · .3 MI No Townline · Structure no. 1415

Built
1975
50 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
3,880
2016 count
Owner
State
State Highway Agency

About this bridge

I 95 NB over Mattamiscontis Stream is a steel stringer/multi-beam or girder carrying I 95 NB over Mattamiscontis Stream in Penobscot County, Maine. It was built in 1975, so it is 50 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 3,880 vehicles a day, roughly 5% of them trucks, projected to reach 5,432 by 2036. The structure is 90 ft (27.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 95 NB
CrossesMattamiscontis Stream
Location.3 MI No Townline
RouteState Highway 95
CountyPenobscot County
StateMaine
Coordinates45.36338, -68.605
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
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 rating75.7 US tons
Inventory rating58.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span85 ft (25.9 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,880 (2016)
Projected traffic5,432 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 Mattamiscontis Stream built?

It was built in 1975, making it 50 years old in 2025.

What condition is I 95 NB over Mattamiscontis Stream 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 September 2023.

How much traffic does I 95 NB over Mattamiscontis Stream carry?

About 3,880 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is I 95 NB over Mattamiscontis Stream?

The structure is 90 ft (27.4 m) long with a longest span of 85 ft (25.9 m) and a deck 44 ft wide.

Who owns I 95 NB over Mattamiscontis Stream?

It is owned by the State Highway Agency.