US Bridges

SR 54 over Over Mahoning Cr.

Fair

Montour County, Pennsylvania · 1.5 MI N of Danville · Structure no. 000000000028332

Built
1930
95 years old, rebuilt 1971
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete
Length
50 ft
1 main span
Daily traffic
10,026
2024 count
Owner
State
State Highway Agency

About this bridge

SR 54 over Over Mahoning Cr. is a concrete tee beam carrying SR 54 over Over Mahoning Cr. in Montour County, Pennsylvania. It was built in 1930 and reconstructed in 1971, so it is 95 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 10,026 vehicles a day, roughly 11% of them trucks, projected to reach 12,003 by 2032. The structure is 50 ft (15.2 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR 54
CrossesOver Mahoning Cr.
Location1.5 MI N of Danville
RouteState Highway 54
CountyMontour County
StatePennsylvania
Coordinates40.98322, -76.62886
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span47 ft (14.3 m)
Deck width45 ft (13.6 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,026 (2024)
Projected traffic12,003 by 2032
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$130,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 54 over Over Mahoning Cr. built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1971.

What condition is SR 54 over Over Mahoning Cr. 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 SR 54 over Over Mahoning Cr. carry?

About 10,026 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is SR 54 over Over Mahoning Cr.?

The structure is 50 ft (15.2 m) long with a longest span of 47 ft (14.3 m) and a deck 45 ft wide.

Who owns SR 54 over Over Mahoning Cr.?

It is owned by the State Highway Agency.