US Bridges

Pa Tpk (I-76) over T-732

Good

Allegheny County, Pennsylvania · Near Milltown · Structure no. 000000000002092

Built
1952
73 years old, rebuilt 1993
Condition
Good
inspected May 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
38,689
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over T-732 is a prestressed concrete box beam or girders - multiple carrying Pa Tpk (I-76) over T-732 in Allegheny County, Pennsylvania. It was built in 1952 and reconstructed in 1993, so it is 73 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 38,689 vehicles a day, roughly 17% of them trucks, projected to reach 42,977 by 2042. The structure is 28 ft (8.5 m) long and 86 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesPa Tpk (I-76)
CrossesT-732
LocationNear Milltown
RouteInterstate 76
Coordinates40.50667, -79.78833
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating53 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width86 ft (26.1 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,689 (2022)
Projected traffic42,977 by 2042
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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$629,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa Tpk (I-76) over T-732 built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1993.

What condition is Pa Tpk (I-76) over T-732 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2022.

How much traffic does Pa Tpk (I-76) over T-732 carry?

About 38,689 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Pa Tpk (I-76) over T-732?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 86 ft wide.

Who owns Pa Tpk (I-76) over T-732?

It is owned by the State Toll Authority.