US Bridges

Pa Tpk (I-76) over Deer Creek

Good

Allegheny County, Pennsylvania · W. of Allegheny Val. Int. · Structure no. 000000000053351

Built
2016
9 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
127 ft
2 main spans
Daily traffic
33,531
2004 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over Deer Creek is a steel continuous stringer/multi-beam or girder carrying Pa Tpk (I-76) over Deer Creek in Allegheny County, Pennsylvania. It was built in 2016, so it is 9 years old, younger 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 33,531 vehicles a day, roughly 19% of them trucks, projected to reach 45,724 by 2030. The structure is 127 ft (38.7 m) long and 125 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPa Tpk (I-76)
CrossesDeer Creek
LocationW. of Allegheny Val. Int.
RouteInterstate 76
CountyAllegheny County
StatePennsylvania
Coordinates40.55467, -79.84279
Functional classRural 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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.5 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length127 ft (38.7 m)
Longest span63 ft (19.2 m)
Deck width125 ft (38.2 m)
Roadway width125 ft (38.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,531 (2004)
Projected traffic45,724 by 2030
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollToll bridge
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 Deer Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Pa Tpk (I-76) over Deer Creek 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 June 2024.

How much traffic does Pa Tpk (I-76) over Deer Creek carry?

About 33,531 vehicles per day (2004 count), of which roughly 19% are trucks.

How long is Pa Tpk (I-76) over Deer Creek?

The structure is 127 ft (38.7 m) long with a longest span of 63 ft (19.2 m) and a deck 125 ft wide.

Who owns Pa Tpk (I-76) over Deer Creek?

It is owned by the State Toll Authority.