US Bridges

I 395 over Penobscot Rv & S Main ST

Fair

Penobscot County, Maine · 0.1 MI E of JCT RTE 1A · Structure no. 1558

Built
1986
39 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,562 ft
8 main spans
Daily traffic
16,550
2016 count
Owner
State
State Highway Agency

About this bridge

I 395 over Penobscot Rv & S Main ST is a steel continuous stringer/multi-beam or girder carrying I 395 over Penobscot Rv & S Main ST in Penobscot County, Maine. It was built in 1986, so it is 39 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 16,550 vehicles a day, roughly 5% of them trucks, projected to reach 23,170 by 2036. The structure is 1,562 ft (476.1 m) long and 108 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI 395
CrossesPenobscot Rv & S Main ST
Location0.1 MI E of JCT RTE 1A
RouteState Highway 395
CountyPenobscot County
StateMaine
Coordinates44.78412, -68.77434
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 25 or greater
Structure length1,562 ft (476.1 m)
Longest span300 ft (91.4 m)
Deck width108 ft (32.9 m)
Roadway width101 ft (30.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,550 (2016)
Projected traffic23,170 by 2036
Trucks5%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed1.9 mi (3 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I 395 over Penobscot Rv & S Main ST built?

It was built in 1986, making it 39 years old in 2025.

What condition is I 395 over Penobscot Rv & S Main ST 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 December 2024.

How much traffic does I 395 over Penobscot Rv & S Main ST carry?

About 16,550 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is I 395 over Penobscot Rv & S Main ST?

The structure is 1,562 ft (476.1 m) long with a longest span of 300 ft (91.4 m) and a deck 108 ft wide.

Who owns I 395 over Penobscot Rv & S Main ST?

It is owned by the State Highway Agency.