SR 4033 over Back Run
PoorLancaster County, Pennsylvania · 2 MI NE of Mt. Joy · Structure no. 000000000021749
- Built
- 1934
- 91 years old, rebuilt 1950
- Condition
- Poor
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 31 ft
- 1 main span
- Daily traffic
- 2,390
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 4033 over Back Run is a steel stringer/multi-beam or girder carrying SR 4033 over Back Run in Lancaster County, Pennsylvania. It was built in 1934 and reconstructed in 1950, so it is 91 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 2,390 vehicles a day, roughly 9% of them trucks, projected to reach 2,249 by 2032. The structure is 31 ft (9.4 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 4 Poor | Advanced section loss, deterioration, 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 SR 4033 over Back Run built?
It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1950.
What condition is SR 4033 over Back 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 May 2023.
How much traffic does SR 4033 over Back Run carry?
About 2,390 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is SR 4033 over Back Run?
The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 25 ft wide.
Who owns SR 4033 over Back Run?
It is owned by the State Highway Agency.