Traffic Route 309 over Susquehanna Road
GoodMontgomery County, Pennsylvania · Upper Dublin 3257H05 · Structure no. 000000000027386
- Built
- 1958
- 67 years old, rebuilt 2006
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 224 ft
- 3 main spans
- Daily traffic
- 59,007
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Traffic Route 309 over Susquehanna Road is a steel continuous stringer/multi-beam or girder carrying Traffic Route 309 over Susquehanna Road in Montgomery County, Pennsylvania. It was built in 1958 and reconstructed in 2006, so it is 67 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 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 59,007 vehicles a day, roughly 5% of them trucks, projected to reach 71,414 by 2032. The structure is 224 ft (68.3 m) long and 93 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Traffic Route 309 over Susquehanna Road built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2006.
What condition is Traffic Route 309 over Susquehanna Road 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 August 2024.
How much traffic does Traffic Route 309 over Susquehanna Road carry?
About 59,007 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Traffic Route 309 over Susquehanna Road?
The structure is 224 ft (68.3 m) long with a longest span of 103 ft (31.4 m) and a deck 93 ft wide.
Who owns Traffic Route 309 over Susquehanna Road?
It is owned by the State Highway Agency.