US Bridges

I-81 Nb; SR 0081 over Pa 934;SR 0934

Fair

Lebanon County, Pennsylvania · I.G.M.R. Exit #85 I-81 · Structure no. 000000000022645

Built
1967
58 years old, rebuilt 1994
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
178 ft
4 main spans
Daily traffic
26,994
2024 count
Owner
State
State Highway Agency

About this bridge

I-81 Nb; SR 0081 over Pa 934;SR 0934 is a prestressed concrete box beam or girders - multiple carrying I-81 Nb; SR 0081 over Pa 934;SR 0934 in Lebanon County, Pennsylvania. It was built in 1967 and reconstructed in 1994, so it is 58 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 26,994 vehicles a day, roughly 42% of them trucks, projected to reach 32,933 by 2035. The structure is 178 ft (54.3 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 Nb; SR 0081
CrossesPa 934;SR 0934
LocationI.G.M.R. Exit #85 I-81
RouteInterstate 81
CountyLebanon County
StatePennsylvania
Coordinates40.41391, -76.58155
Functional classRural 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 inspectionDecember 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length178 ft (54.3 m)
Longest span58 ft (17.7 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,994 (2024)
Projected traffic32,933 by 2035
Trucks42%
Lanes on structure3
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 Nb; SR 0081 over Pa 934;SR 0934 built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1994.

What condition is I-81 Nb; SR 0081 over Pa 934;SR 0934 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 December 2023.

How much traffic does I-81 Nb; SR 0081 over Pa 934;SR 0934 carry?

About 26,994 vehicles per day (2024 count), of which roughly 42% are trucks.

How long is I-81 Nb; SR 0081 over Pa 934;SR 0934?

The structure is 178 ft (54.3 m) long with a longest span of 58 ft (17.7 m) and a deck 55 ft wide.

Who owns I-81 Nb; SR 0081 over Pa 934;SR 0934?

It is owned by the State Highway Agency.