US Bridges

Unity Center Road over Pa Tpk (I-76)

Good

Allegheny County, Pennsylvania · Near Penn Hills · Structure no. 000000000067876

Built
2019
6 years old
Condition
Good
inspected November 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
194 ft
2 main spans
Daily traffic
4,396
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

Unity Center Road over Pa Tpk (I-76) is a prestressed concrete continuous box beam or girders - multiple carrying Unity Center Road over Pa Tpk (I-76) in Allegheny County, Pennsylvania. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,396 vehicles a day, roughly 5% of them trucks, projected to reach 4,396 by 2020. The structure is 194 ft (59.1 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesUnity Center Road
CrossesPa Tpk (I-76)
LocationNear Penn Hills
RouteCounty Highway 0LOCL
CountyAllegheny County
StatePennsylvania
Coordinates40.48998, -79.78119
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length194 ft (59.1 m)
Longest span109 ft (33.2 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,396 (2020)
Projected traffic4,396 by 2020
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Unity Center Road over Pa Tpk (I-76) built?

It was built in 2019, making it 6 years old in 2025.

What condition is Unity Center Road over Pa Tpk (I-76) 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 November 2022.

How much traffic does Unity Center Road over Pa Tpk (I-76) carry?

About 4,396 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Unity Center Road over Pa Tpk (I-76)?

The structure is 194 ft (59.1 m) long with a longest span of 109 ft (33.2 m) and a deck 36 ft wide.

Who owns Unity Center Road over Pa Tpk (I-76)?

It is owned by the State Toll Authority.