US Bridges

Mckees Rock Br RD over CSX RR

Fair

Allegheny County, Pennsylvania · Mckees Rocks Bottoms · Structure no. 000000000001868

Built
1931
94 years old, rebuilt 2008
Condition
Fair
inspected October 2022
Type
Arch - Thru
Steel
Length
610 ft
2 main spans
Daily traffic
29,612
2024 count
Owner
State
State Highway Agency

About this bridge

Mckees Rock Br RD over CSX RR is a steel arch - thru carrying Mckees Rock Br RD over CSX RR in Allegheny County, Pennsylvania. It was built in 1931 and reconstructed in 2008, 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 24,404 by 2032. The structure is 610 ft (185.9 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMckees Rock Br RD
CrossesCSX RR
LocationMckees Rocks Bottoms
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.47428, -80.06071
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length610 ft (185.9 m)
Longest span301 ft (91.7 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck15 ft (4.4 m)

Traffic and service

Average daily traffic29,612 (2024)
Projected traffic24,404 by 2032
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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$711,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mckees Rock Br RD over CSX RR built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 2008.

What condition is Mckees Rock Br RD over CSX RR 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 2022.

How much traffic does Mckees Rock Br RD over CSX RR carry?

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

How long is Mckees Rock Br RD over CSX RR?

The structure is 610 ft (185.9 m) long with a longest span of 301 ft (91.7 m) and a deck 43 ft wide.

Who owns Mckees Rock Br RD over CSX RR?

It is owned by the State Highway Agency.