US Bridges

Pa Tpk (I-76) over Laurel Run

Fair

Dauphin County, Pennsylvania · Highspire Boro · Structure no. 000000000014607

Built
1949
76 years old, rebuilt 2007
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
29,356
2001 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over Laurel Run is a concrete culvert carrying Pa Tpk (I-76) over Laurel Run in Dauphin County, Pennsylvania. It was built in 1949 and reconstructed in 2007, so it is 76 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 29,356 vehicles a day, roughly 21% of them trucks, projected to reach 39,064 by 2030. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesPa Tpk (I-76)
CrossesLaurel Run
LocationHighspire Boro
RouteInterstate 76
CountyDauphin County
StatePennsylvania
Coordinates40.21399, -76.79422
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 length26 ft (7.9 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,356 (2001)
Projected traffic39,064 by 2030
Trucks21%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Laurel Run built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2007.

What condition is Pa Tpk (I-76) over Laurel Run 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 2023.

How much traffic does Pa Tpk (I-76) over Laurel Run carry?

About 29,356 vehicles per day (2001 count), of which roughly 21% are trucks.

How long is Pa Tpk (I-76) over Laurel Run?

The structure is 26 ft (7.9 m) long with a longest span of 20 ft (6.1 m).

Who owns Pa Tpk (I-76) over Laurel Run?

It is owned by the State Toll Authority.