US Bridges

SR 125 over Mahanoy Creek

Good

Northumberland County, Pennsylvania · 1.5 MI SW of Gowan City · Structure no. 000000000029027

Built
1986
39 years old
Condition
Good
inspected October 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
133 ft
1 main span
Daily traffic
500
2024 count
Owner
State
State Highway Agency

About this bridge

SR 125 over Mahanoy Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 125 over Mahanoy Creek in Northumberland County, Pennsylvania. It was built in 1986, so it is 39 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 500 vehicles a day, roughly 10% of them trucks, projected to reach 521 by 2032. The structure is 133 ft (40.5 m) long and 34 ft wide. If it were closed, the detour would be 44.1 mi (71 km).

CarriesSR 125
CrossesMahanoy Creek
Location1.5 MI SW of Gowan City
RouteState Highway 125
Coordinates40.74041, -76.54846
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating52 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length133 ft (40.5 m)
Longest span130 ft (39.6 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2024)
Projected traffic521 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.1 mi (71 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 125 over Mahanoy Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is SR 125 over Mahanoy Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2022.

How much traffic does SR 125 over Mahanoy Creek carry?

About 500 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SR 125 over Mahanoy Creek?

The structure is 133 ft (40.5 m) long with a longest span of 130 ft (39.6 m) and a deck 34 ft wide.

Who owns SR 125 over Mahanoy Creek?

It is owned by the State Highway Agency.