US Bridges

Fort Pitt Bridge over Mon R NS RR SR 0837 0376

Fair

Allegheny County, Pennsylvania · Fort Pitt Bridge · Structure no. 000000000001011

Built
1960
65 years old, rebuilt 2003
Condition
Fair
inspected June 2022
Type
Arch - Thru
Steel
Length
1,209 ft
1 main span
Daily traffic
45,176
2024 count
Owner
State
State Highway Agency

About this bridge

Fort Pitt Bridge over Mon R NS RR SR 0837 0376 is a steel arch - thru carrying Fort Pitt Bridge over Mon R NS RR SR 0837 0376 in Allegheny County, Pennsylvania. It was built in 1960 and reconstructed in 2003, 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 45,176 vehicles a day, roughly 5% of them trucks, projected to reach 45,944 by 2032. The structure is 1,209 ft (368.5 m) long and 58 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFort Pitt Bridge
CrossesMon R NS RR SR 0837 0376
LocationFort Pitt Bridge
RouteInterstate 376
Coordinates40.43844, -80.01204
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+5 approach)
Design loadHS 20
Structure length1,209 ft (368.5 m)
Longest span752 ft (229.2 m)
Deck width58 ft (17.8 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deck23 ft (7 m)

Traffic and service

Average daily traffic45,176 (2024)
Projected traffic45,944 by 2032
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Fort Pitt Bridge over Mon R NS RR SR 0837 0376 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2003.

What condition is Fort Pitt Bridge over Mon R NS RR SR 0837 0376 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 June 2022.

How much traffic does Fort Pitt Bridge over Mon R NS RR SR 0837 0376 carry?

About 45,176 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Fort Pitt Bridge over Mon R NS RR SR 0837 0376?

The structure is 1,209 ft (368.5 m) long with a longest span of 752 ft (229.2 m) and a deck 58 ft wide.

Who owns Fort Pitt Bridge over Mon R NS RR SR 0837 0376?

It is owned by the State Highway Agency.