US Bridges

Mckees Rocks Brg over Norfolk S RR Ohio River

Fair

Allegheny County, Pennsylvania · Mckees Rocks Bridge (main · Structure no. 000000000001876

Built
1931
94 years old, rebuilt 1987
Condition
Fair
inspected October 2023
Type
Arch - Thru
Steel
Length
3,754 ft
1 main span
Daily traffic
29,612
2024 count
Owner
State
State Highway Agency

About this bridge

Mckees Rocks Brg over Norfolk S RR Ohio River is a steel arch - thru carrying Mckees Rocks Brg over Norfolk S RR Ohio River in Allegheny County, Pennsylvania. It was built in 1931 and reconstructed in 1987, so it is 94 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 5 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 29,612 vehicles a day, roughly 6% of them trucks, projected to reach 24,403 by 2041. The structure is 3,754 ft (1,144.2 m) long and 52 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMckees Rocks Brg
CrossesNorfolk S RR Ohio River
LocationMckees Rocks Bridge (main
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.47597, -80.05646
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating27 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+14 approach)
Design loadUnknown
Structure length3,754 ft (1,144.2 m)
Longest span750 ft (228.6 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic29,612 (2024)
Projected traffic24,403 by 2041
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$10 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Mckees Rocks Brg over Norfolk S RR Ohio River built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1987.

What condition is Mckees Rocks Brg over Norfolk S RR Ohio River 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 October 2023.

How much traffic does Mckees Rocks Brg over Norfolk S RR Ohio River carry?

About 29,612 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Mckees Rocks Brg over Norfolk S RR Ohio River?

The structure is 3,754 ft (1,144.2 m) long with a longest span of 750 ft (228.6 m) and a deck 52 ft wide.

Who owns Mckees Rocks Brg over Norfolk S RR Ohio River?

It is owned by the State Highway Agency.