US Bridges

SR 51 NB SB over Over Lewis Run

Fair

Allegheny County, Pennsylvania · One Mile N of SR 2030 · Structure no. 000000000000725

Built
1960
65 years old, rebuilt 1999
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
25,938
2024 count
Owner
State
State Highway Agency

About this bridge

SR 51 NB SB over Over Lewis Run is a concrete culvert carrying SR 51 NB SB over Over Lewis Run in Allegheny County, Pennsylvania. It was built in 1960 and reconstructed in 1999, so it is 65 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 25,938 vehicles a day, roughly 4% of them trucks, projected to reach 34,275 by 2032. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 51 NB SB
CrossesOver Lewis Run
LocationOne Mile N of SR 2030
RouteState Highway 51
CountyAllegheny County
StatePennsylvania
Coordinates40.30399, -79.9327
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,938 (2024)
Projected traffic34,275 by 2032
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$132,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 51 NB SB over Over Lewis Run built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1999.

What condition is SR 51 NB SB over 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 SR 51 NB SB over Over Lewis Run carry?

About 25,938 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is SR 51 NB SB over Over Lewis Run?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m).

Who owns SR 51 NB SB over Over Lewis Run?

It is owned by the State Highway Agency.