US Bridges

SR 0051 SB over SR 0837

Good

Allegheny County, Pennsylvania · TR 51 SB over TR 837 · Structure no. 000000000000718

Built
1951
74 years old, rebuilt 1986
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
11,406
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0051 SB over SR 0837 is a steel stringer/multi-beam or girder carrying SR 0051 SB over SR 0837 in Allegheny County, Pennsylvania. It was built in 1951 and reconstructed in 1986, so it is 74 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 11,406 vehicles a day, roughly 6% of them trucks, projected to reach 12,444 by 2032. The structure is 90 ft (27.4 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 0051 SB
CrossesSR 0837
LocationTR 51 SB over TR 837
RouteState Highway 51
CountyAllegheny County
StatePennsylvania
Coordinates40.27439, -79.89439
Functional classUrban Other Principal Arterial

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating105.1 US tons
Inventory rating63.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span87 ft (26.5 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,406 (2024)
Projected traffic12,444 by 2032
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$107,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0051 SB over SR 0837 built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1986.

What condition is SR 0051 SB over SR 0837 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 2023.

How much traffic does SR 0051 SB over SR 0837 carry?

About 11,406 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR 0051 SB over SR 0837?

The structure is 90 ft (27.4 m) long with a longest span of 87 ft (26.5 m) and a deck 31 ft wide.

Who owns SR 0051 SB over SR 0837?

It is owned by the State Highway Agency.