US Bridges

Clairton Blvd over Tr. 51 over Lewis Run

Fair

Allegheny County, Pennsylvania · At Int SR 2032 · Structure no. 000000000000730

Built
1958
67 years old, rebuilt 2010
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
29,050
2024 count
Owner
State
State Highway Agency

About this bridge

Clairton Blvd over Tr. 51 over Lewis Run is a prestressed concrete box beam or girders - multiple carrying Clairton Blvd over Tr. 51 over Lewis Run in Allegheny County, Pennsylvania. It was built in 1958 and reconstructed in 2010, so it is 67 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 6 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 29,050 vehicles a day, roughly 4% of them trucks, projected to reach 24,514 by 2032. The structure is 28 ft (8.5 m) long and 60 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesClairton Blvd
CrossesTr. 51 over Lewis Run
LocationAt Int SR 2032
RouteState Highway 51
CountyAllegheny County
StatePennsylvania
Coordinates40.32153, -79.94232
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating78 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width60 ft (18.3 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,050 (2024)
Projected traffic24,514 by 2032
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$408,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Clairton Blvd over Tr. 51 over Lewis Run built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2010.

What condition is Clairton Blvd over Tr. 51 over Lewis Run 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 December 2023.

How much traffic does Clairton Blvd over Tr. 51 over Lewis Run carry?

About 29,050 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Clairton Blvd over Tr. 51 over Lewis Run?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 60 ft wide.

Who owns Clairton Blvd over Tr. 51 over Lewis Run?

It is owned by the State Highway Agency.