US Bridges

I-81 Sb; SR 0081 over Twp RD 465

Fair

Dauphin County, Pennsylvania · 2.5 Mi. E. Linglestown · Structure no. 000000000014243

Built
1969
56 years old, rebuilt 1995
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
135 ft
3 main spans
Daily traffic
30,534
2024 count
Owner
State
State Highway Agency

About this bridge

I-81 Sb; SR 0081 over Twp RD 465 is a prestressed concrete box beam or girders - multiple carrying I-81 Sb; SR 0081 over Twp RD 465 in Dauphin County, Pennsylvania. It was built in 1969 and reconstructed in 1995, so it is 56 years old, older than the Pennsylvania average of 54.8 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 30,534 vehicles a day, roughly 34% of them trucks, projected to reach 39,770 by 2032. The structure is 135 ft (41.1 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-81 Sb; SR 0081
CrossesTwp RD 465
Location2.5 Mi. E. Linglestown
RouteInterstate 81
CountyDauphin County
StatePennsylvania
Coordinates40.34508, -76.74207
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
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 alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating52 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length135 ft (41.1 m)
Longest span53 ft (16.2 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,534 (2024)
Projected traffic39,770 by 2032
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 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-81 Sb; SR 0081 over Twp RD 465 built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1995.

What condition is I-81 Sb; SR 0081 over Twp RD 465 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 2024.

How much traffic does I-81 Sb; SR 0081 over Twp RD 465 carry?

About 30,534 vehicles per day (2024 count), of which roughly 34% are trucks.

How long is I-81 Sb; SR 0081 over Twp RD 465?

The structure is 135 ft (41.1 m) long with a longest span of 53 ft (16.2 m) and a deck 55 ft wide.

Who owns I-81 Sb; SR 0081 over Twp RD 465?

It is owned by the State Highway Agency.