T-506 (8th Street) over Zerbe Run
PoorPosted for loadNorthumberland County, Pennsylvania · Trevorton · Structure no. 000000000029390
- Built
- 1904
- 121 years old, rebuilt 1997
- Condition
- Poor
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 27 ft
- 1 main span
- Daily traffic
- 400
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
T-506 (8th Street) over Zerbe Run is a steel stringer/multi-beam or girder carrying T-506 (8th Street) over Zerbe Run in Northumberland County, Pennsylvania. It was built in 1904 and reconstructed in 1997, so it is 121 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. Its operating status is: posted for load restriction.
It carries about 400 vehicles a day, roughly 4% of them trucks, projected to reach 618 by 2039. The structure is 27 ft (8.2 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T-506 (8th Street) over Zerbe Run built?
It was built in 1904, making it 121 years old in 2025. It was reconstructed in 1997.
What condition is T-506 (8th Street) over Zerbe Run 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 December 2023.
How much traffic does T-506 (8th Street) over Zerbe Run carry?
About 400 vehicles per day (2017 count), of which roughly 4% are trucks.
How long is T-506 (8th Street) over Zerbe Run?
The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 19 ft wide.
Who owns T-506 (8th Street) over Zerbe Run?
It is owned by the County Highway Agency.