US Bridges

Pa Tpk (I-76) over T-457

Fair

Chester County, Pennsylvania · Near Marsh Creek State Pk · Structure no. 000000000010739

Built
1950
75 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
26 ft
1 main span
Daily traffic
46,178
2004 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over T-457 is a concrete tee beam carrying Pa Tpk (I-76) over T-457 in Chester County, Pennsylvania. It was built in 1950, so it is 75 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 46,178 vehicles a day, roughly 19% of them trucks, projected to reach 66,798 by 2030. The structure is 26 ft (7.9 m) long and 84 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesPa Tpk (I-76)
CrossesT-457
LocationNear Marsh Creek State Pk
RouteInterstate 76
CountyChester County
StatePennsylvania
Coordinates40.08999, -75.72851
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width84 ft (25.7 m)
Roadway width81 ft (24.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,178 (2004)
Projected traffic66,798 by 2030
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed24.2 mi (39 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$228,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa Tpk (I-76) over T-457 built?

It was built in 1950, making it 75 years old in 2025.

What condition is Pa Tpk (I-76) over T-457 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 June 2024.

How much traffic does Pa Tpk (I-76) over T-457 carry?

About 46,178 vehicles per day (2004 count), of which roughly 19% are trucks.

How long is Pa Tpk (I-76) over T-457?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 84 ft wide.

Who owns Pa Tpk (I-76) over T-457?

It is owned by the State Toll Authority.