SR 422 (LR793) over Thun Recreational Trail
PoorBerks County, Pennsylvania · Reading Bypass · Structure no. 000000000004776
- Built
- 1963
- 62 years old, rebuilt 1996
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 753 ft
- 3 main spans
- Daily traffic
- 71,101
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 422 (LR793) over Thun Recreational Trail is a steel continuous stringer/multi-beam or girder carrying SR 422 (LR793) over Thun Recreational Trail in Berks County, Pennsylvania. It was built in 1963 and reconstructed in 1996, so it is 62 years old, older than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 71,101 vehicles a day, roughly 7% of them trucks, projected to reach 89,158 by 2032. The structure is 753 ft (229.5 m) long and 66 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 422 (LR793) over Thun Recreational Trail built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1996.
What condition is SR 422 (LR793) over Thun Recreational Trail in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does SR 422 (LR793) over Thun Recreational Trail carry?
About 71,101 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is SR 422 (LR793) over Thun Recreational Trail?
The structure is 753 ft (229.5 m) long with a longest span of 120 ft (36.6 m) and a deck 66 ft wide.
Who owns SR 422 (LR793) over Thun Recreational Trail?
It is owned by the State Highway Agency.