US Bridges

I 95 NB over Salmon Stream

Fair

Penobscot County, Maine · Mile 240 (5.1 M N Tl) · Structure no. 6164

Built
1966
59 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
91 ft
1 main span
Daily traffic
2,230
2016 count
Owner
State
State Highway Agency

About this bridge

I 95 NB over Salmon Stream is a steel stringer/multi-beam or girder carrying I 95 NB over Salmon Stream in Penobscot County, Maine. It was built in 1966, so it is 59 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 2,230 vehicles a day, roughly 5% of them trucks, projected to reach 3,122 by 2036. The structure is 91 ft (27.6 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 95 NB
CrossesSalmon Stream
LocationMile 240 (5.1 M N Tl)
RouteState Highway 95
CountyPenobscot County
StateMaine
Coordinates45.63883, -68.49963
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionSeptember 2023
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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length91 ft (27.6 m)
Longest span85 ft (25.9 m)
Deck width47 ft (14.3 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,230 (2016)
Projected traffic3,122 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 Salmon Stream built?

It was built in 1966, making it 59 years old in 2025.

What condition is I 95 NB over Salmon 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 Salmon Stream carry?

About 2,230 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is I 95 NB over Salmon Stream?

The structure is 91 ft (27.6 m) long with a longest span of 85 ft (25.9 m) and a deck 47 ft wide.

Who owns I 95 NB over Salmon Stream?

It is owned by the State Highway Agency.