US Bridges

Pa Tpk (I-76) over Conococheague CR

Fair

Franklin County, Pennsylvania · Near Willow Hill · Structure no. 000000000017616

Built
1939
86 years old, rebuilt 1970
Condition
Fair
inspected November 2022
Type
Culvert
Concrete
Length
27 ft
1 main span
Daily traffic
21,433
2001 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over Conococheague CR is a concrete culvert carrying Pa Tpk (I-76) over Conococheague CR in Franklin County, Pennsylvania. It was built in 1939 and reconstructed in 1970, so it is 86 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 21,433 vehicles a day, roughly 38% of them trucks, projected to reach 24,099 by 2030. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesPa Tpk (I-76)
CrossesConococheague CR
LocationNear Willow Hill
RouteInterstate 76
CountyFranklin County
StatePennsylvania
Coordinates40.10667, -77.78667
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating98.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,433 (2001)
Projected traffic24,099 by 2030
Trucks38%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Tpk (I-76) over Conococheague CR built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1970.

What condition is Pa Tpk (I-76) over Conococheague CR 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 November 2022.

How much traffic does Pa Tpk (I-76) over Conococheague CR carry?

About 21,433 vehicles per day (2001 count), of which roughly 38% are trucks.

How long is Pa Tpk (I-76) over Conococheague CR?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m).

Who owns Pa Tpk (I-76) over Conococheague CR?

It is owned by the State Toll Authority.