US Bridges

Traffic Route 309 over SEPTA (bethlehem Branch)

Good

Bucks County, Pennsylvania · East of Telford 20D07 · Structure no. 000000000006971

Built
1967
58 years old, rebuilt 2023
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
126 ft
3 main spans
Daily traffic
30,042
2023 count
Owner
State
State Highway Agency

About this bridge

Traffic Route 309 over SEPTA (bethlehem Branch) is a prestressed concrete continuous box beam or girders - multiple carrying Traffic Route 309 over SEPTA (bethlehem Branch) in Bucks County, Pennsylvania. It was built in 1967 and reconstructed in 2023, so it is 58 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30,042 vehicles a day, roughly 7% of them trucks, projected to reach 41,284 by 2032. The structure is 126 ft (38.4 m) long and 90 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesTraffic Route 309
CrossesSEPTA (bethlehem Branch)
LocationEast of Telford 20D07
RouteState Highway 309
Coordinates40.33948, -75.31459
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length126 ft (38.4 m)
Longest span52 ft (15.8 m)
Deck width90 ft (27.3 m)
Roadway width83 ft (25.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,042 (2023)
Projected traffic41,284 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 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$450,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Traffic Route 309 over SEPTA (bethlehem Branch) built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2023.

What condition is Traffic Route 309 over SEPTA (bethlehem Branch) 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 June 2023.

How much traffic does Traffic Route 309 over SEPTA (bethlehem Branch) carry?

About 30,042 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Traffic Route 309 over SEPTA (bethlehem Branch)?

The structure is 126 ft (38.4 m) long with a longest span of 52 ft (15.8 m) and a deck 90 ft wide.

Who owns Traffic Route 309 over SEPTA (bethlehem Branch)?

It is owned by the State Highway Agency.