US Bridges

WB-433 over Pa Tpk (I-76)

Good

Allegheny County, Pennsylvania · West of Indianola · Structure no. 000000000048851

Built
2013
12 years old
Condition
Good
inspected October 2021
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
244 ft
3 main spans
Daily traffic
7,326
2024 count
Owner
State
State Highway Agency

About this bridge

WB-433 over Pa Tpk (I-76) is a steel continuous stringer/multi-beam or girder carrying WB-433 over Pa Tpk (I-76) in Allegheny County, Pennsylvania. It was built in 2013, so it is 12 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 7,326 vehicles a day, roughly 6% of them trucks, projected to reach 10,187 by 2030. The structure is 244 ft (74.4 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWB-433
CrossesPa Tpk (I-76)
LocationWest of Indianola
RouteState Highway 910
Coordinates40.57167, -79.85667
Functional classUrban Minor Arterial

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68.9 US tons
Inventory rating43.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length244 ft (74.4 m)
Longest span93 ft (28.3 m)
Deck width44 ft (13.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,326 (2024)
Projected traffic10,187 by 2030
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was WB-433 over Pa Tpk (I-76) built?

It was built in 2013, making it 12 years old in 2025.

What condition is WB-433 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 October 2021.

How much traffic does WB-433 over Pa Tpk (I-76) carry?

About 7,326 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is WB-433 over Pa Tpk (I-76)?

The structure is 244 ft (74.4 m) long with a longest span of 93 ft (28.3 m) and a deck 44 ft wide.

Who owns WB-433 over Pa Tpk (I-76)?

It is owned by the State Highway Agency.