SR 4021 Atlantic over Bluff Run
PoorPosted for loadMercer County, Pennsylvania · Sugar Grove Township · Structure no. 000000000026066
- Built
- 1952
- 73 years old
- Condition
- Poor
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 34 ft
- 1 main span
- Daily traffic
- 567
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 4021 Atlantic over Bluff Run is a steel stringer/multi-beam or girder carrying SR 4021 Atlantic over Bluff Run in Mercer County, Pennsylvania. It was built in 1952, so it is 73 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 567 vehicles a day, roughly 9% of them trucks, projected to reach 643 by 2032. The structure is 34 ft (10.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 4021 Atlantic over Bluff Run built?
It was built in 1952, making it 73 years old in 2025.
What condition is SR 4021 Atlantic over Bluff 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 April 2023.
How much traffic does SR 4021 Atlantic over Bluff Run carry?
About 567 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is SR 4021 Atlantic over Bluff Run?
The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.
Who owns SR 4021 Atlantic over Bluff Run?
It is owned by the State Highway Agency.