US Bridges

Rp B from W Carson over SR 0837 NB SB

Poor

Allegheny County, Pennsylvania · Fort Pitt Bridge · Structure no. 000000000002811

Built
1959
66 years old, rebuilt 1997
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
718 ft
7 main spans
Daily traffic
9,038
2024 count
Owner
State
State Highway Agency

About this bridge

Rp B from W Carson over SR 0837 NB SB is a steel stringer/multi-beam or girder carrying Rp B from W Carson over SR 0837 NB SB in Allegheny County, Pennsylvania. It was built in 1959 and reconstructed in 1997, so it is 66 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 9,038 vehicles a day, roughly 7% of them trucks, projected to reach 17,150 by 2032. The structure is 718 ft (218.8 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRp B from W Carson
CrossesSR 0837 NB SB
LocationFort Pitt Bridge
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.43815, -80.01428
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating93 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length718 ft (218.8 m)
Longest span152 ft (46.3 m)
Deck width29 ft (8.7 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,038 (2024)
Projected traffic17,150 by 2032
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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$605,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rp B from W Carson over SR 0837 NB SB built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1997.

What condition is Rp B from W Carson over SR 0837 NB SB in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Rp B from W Carson over SR 0837 NB SB carry?

About 9,038 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Rp B from W Carson over SR 0837 NB SB?

The structure is 718 ft (218.8 m) long with a longest span of 152 ft (46.3 m) and a deck 29 ft wide.

Who owns Rp B from W Carson over SR 0837 NB SB?

It is owned by the State Highway Agency.