Hamilton Street over Union Street Ramp
FairLehigh County, Pennsylvania · West of River Bridge · Structure no. 000000000023514
- Built
- 1959
- 66 years old, rebuilt 1995
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 232 ft
- 4 main spans
- Daily traffic
- 15,000
- 2002 count
- Owner
- County
- County Highway Agency
About this bridge
Hamilton Street over Union Street Ramp is a prestressed concrete stringer/multi-beam or girder carrying Hamilton Street over Union Street Ramp in Lehigh County, Pennsylvania. It was built in 1959 and reconstructed in 1995, so it is 66 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 15,000 vehicles a day, roughly 1% of them trucks, projected to reach 16,500 by 2022. The structure is 232 ft (70.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hamilton Street over Union Street Ramp built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1995.
What condition is Hamilton Street over Union Street Ramp 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 April 2024.
How much traffic does Hamilton Street over Union Street Ramp carry?
About 15,000 vehicles per day (2002 count), of which roughly 1% are trucks.
How long is Hamilton Street over Union Street Ramp?
The structure is 232 ft (70.7 m) long with a longest span of 88 ft (26.8 m) and a deck 28 ft wide.
Who owns Hamilton Street over Union Street Ramp?
It is owned by the County Highway Agency.