US Bridges

SR 2046 over Trib to Mahanoy CR

Fair

Northumberland County, Pennsylvania · 2 MI SW of Gowen City · Structure no. 000000000029224

Built
1939
86 years old, rebuilt 1989
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
124
2024 count
Owner
State
State Highway Agency

About this bridge

SR 2046 over Trib to Mahanoy CR is a concrete slab carrying SR 2046 over Trib to Mahanoy CR in Northumberland County, Pennsylvania. It was built in 1939 and reconstructed in 1989, so it is 86 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 124 vehicles a day, roughly 2% of them trucks, projected to reach 112 by 2032. The structure is 21 ft (6.4 m) long and 17 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 2046
CrossesTrib to Mahanoy CR
Location2 MI SW of Gowen City
RouteState Highway 0
CountyNorthumberland County
StatePennsylvania
Coordinates40.74343, -76.57122
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width17 ft (5.1 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic124 (2024)
Projected traffic112 by 2032
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 2046 over Trib to Mahanoy CR built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1989.

What condition is SR 2046 over Trib to Mahanoy 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 November 2024.

How much traffic does SR 2046 over Trib to Mahanoy CR carry?

About 124 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is SR 2046 over Trib to Mahanoy CR?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 17 ft wide.

Who owns SR 2046 over Trib to Mahanoy CR?

It is owned by the State Highway Agency.