US Bridges

I-81 Sb; SR 0081 over Pa 641; SR 0641

Fair

Cumberland County, Pennsylvania · I-81 over Pa 641 · Structure no. 000000000013686

Built
1963
62 years old, rebuilt 1994
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
143 ft
1 main span
Daily traffic
24,150
2024 count
Owner
State
State Highway Agency

About this bridge

I-81 Sb; SR 0081 over Pa 641; SR 0641 is a prestressed concrete box beam or girders - multiple carrying I-81 Sb; SR 0081 over Pa 641; SR 0641 in Cumberland County, Pennsylvania. It was built in 1963 and reconstructed in 1994, so it is 62 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 24,150 vehicles a day, roughly 36% of them trucks, projected to reach 33,407 by 2032. The structure is 143 ft (43.6 m) long and 46 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
CrossesPa 641; SR 0641
LocationI-81 over Pa 641
RouteInterstate 81
CountyCumberland County
StatePennsylvania
Coordinates40.19914, -77.15894
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.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating43 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span74 ft (22.6 m)
Deck width46 ft (13.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,150 (2024)
Projected traffic33,407 by 2032
Trucks36%
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 Pa 641; SR 0641 built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1994.

What condition is I-81 Sb; SR 0081 over Pa 641; SR 0641 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 April 2024.

How much traffic does I-81 Sb; SR 0081 over Pa 641; SR 0641 carry?

About 24,150 vehicles per day (2024 count), of which roughly 36% are trucks.

How long is I-81 Sb; SR 0081 over Pa 641; SR 0641?

The structure is 143 ft (43.6 m) long with a longest span of 74 ft (22.6 m) and a deck 46 ft wide.

Who owns I-81 Sb; SR 0081 over Pa 641; SR 0641?

It is owned by the State Highway Agency.