US Bridges

I-81 Sb; SR 0081 over Csx; Western Md. R.R.

Fair

Franklin County, Pennsylvania · SE Chambersburg · Structure no. 000000000017380

Built
1963
62 years old, rebuilt 2010
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
155 ft
3 main spans
Daily traffic
20,745
2024 count
Owner
State
State Highway Agency

About this bridge

I-81 Sb; SR 0081 over Csx; Western Md. R.R. is a prestressed concrete stringer/multi-beam or girder carrying I-81 Sb; SR 0081 over Csx; Western Md. R.R. in Franklin County, Pennsylvania. It was built in 1963 and reconstructed in 2010, 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 20,745 vehicles a day, roughly 34% of them trucks, projected to reach 32,683 by 2035. The structure is 155 ft (47.2 m) long and 46 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesI-81 Sb; SR 0081
CrossesCsx; Western Md. R.R.
LocationSE Chambersburg
RouteInterstate 81
CountyFranklin County
StatePennsylvania
Coordinates39.90787, -77.65181
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length155 ft (47.2 m)
Longest span50 ft (15.2 m)
Deck width46 ft (13.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,745 (2024)
Projected traffic32,683 by 2035
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed11.8 mi (19 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-81 Sb; SR 0081 over Csx; Western Md. R.R. built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2010.

What condition is I-81 Sb; SR 0081 over Csx; Western Md. R.R. 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 January 2024.

How much traffic does I-81 Sb; SR 0081 over Csx; Western Md. R.R. carry?

About 20,745 vehicles per day (2024 count), of which roughly 34% are trucks.

How long is I-81 Sb; SR 0081 over Csx; Western Md. R.R.?

The structure is 155 ft (47.2 m) long with a longest span of 50 ft (15.2 m) and a deck 46 ft wide.

Who owns I-81 Sb; SR 0081 over Csx; Western Md. R.R.?

It is owned by the State Highway Agency.