US Bridges

I-95 SB over Auburn Interchange

Fair

Androscoggin County, Maine · .32 MI E of Kittyhawk Ave · Structure no. 6496

Built
1956
69 years old, rebuilt 1995
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
9,180
2016 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-95 SB over Auburn Interchange is a steel stringer/multi-beam or girder carrying I-95 SB over Auburn Interchange in Androscoggin County, Maine. It was built in 1956 and reconstructed in 1995, so it is 69 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 9,180 vehicles a day, roughly 11% of them trucks, projected to reach 12,852 by 2036. The structure is 51 ft (15.5 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-95 SB
CrossesAuburn Interchange
Location.32 MI E of Kittyhawk Ave
RouteInterstate 95
CountyAndroscoggin County
StateMaine
Coordinates44.03795, -70.26842
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating83.9 US tons
Inventory rating65 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length51 ft (15.5 m)
Longest span51 ft (15.5 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,180 (2016)
Projected traffic12,852 by 2036
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn an Interstate toll segment under Secretarial agreement
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-95 SB over Auburn Interchange built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1995.

What condition is I-95 SB over Auburn Interchange 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 June 2023.

How much traffic does I-95 SB over Auburn Interchange carry?

About 9,180 vehicles per day (2016 count), of which roughly 11% are trucks.

How long is I-95 SB over Auburn Interchange?

The structure is 51 ft (15.5 m) long with a longest span of 51 ft (15.5 m) and a deck 55 ft wide.

Who owns I-95 SB over Auburn Interchange?

It is owned by the State Toll Authority.