US Bridges

I-81 Nb; SR 0081 over US 30; SR 0030

Fair

Franklin County, Pennsylvania · U.S.30 Chambersburg · Structure no. 000000000017385

Built
1963
62 years old, rebuilt 2010
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
148 ft
1 main span
Daily traffic
24,134
2024 count
Owner
State
State Highway Agency

About this bridge

I-81 Nb; SR 0081 over US 30; SR 0030 is a prestressed concrete box beam or girders - multiple carrying I-81 Nb; SR 0081 over US 30; SR 0030 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 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 24,134 vehicles a day, roughly 29% of them trucks, projected to reach 29,067 by 2032. The structure is 148 ft (45.1 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-81 Nb; SR 0081
CrossesUS 30; SR 0030
LocationU.S.30 Chambersburg
RouteInterstate 81
CountyFranklin County
StatePennsylvania
Coordinates39.92906, -77.63482
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating32 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length148 ft (45.1 m)
Longest span83 ft (25.3 m)
Deck width46 ft (13.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,134 (2024)
Projected traffic29,067 by 2032
Trucks29%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$134,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-81 Nb; SR 0081 over US 30; SR 0030 built?

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

What condition is I-81 Nb; SR 0081 over US 30; SR 0030 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 February 2024.

How much traffic does I-81 Nb; SR 0081 over US 30; SR 0030 carry?

About 24,134 vehicles per day (2024 count), of which roughly 29% are trucks.

How long is I-81 Nb; SR 0081 over US 30; SR 0030?

The structure is 148 ft (45.1 m) long with a longest span of 83 ft (25.3 m) and a deck 46 ft wide.

Who owns I-81 Nb; SR 0081 over US 30; SR 0030?

It is owned by the State Highway Agency.