Allison Road over Dunlap Creek
PoorPosted for loadFayette County, Pennsylvania · Outside Allison No. 2 · Structure no. 000000000017119
- Built
- 1963
- 62 years old
- Condition
- Poor
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 60 ft
- 1 main span
- Daily traffic
- 500
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Allison Road over Dunlap Creek is a prestressed concrete box beam or girders - multiple carrying Allison Road over Dunlap Creek in Fayette County, Pennsylvania. It was built in 1963, 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. Its operating status is: posted for load restriction.
It carries about 500 vehicles a day, roughly 5% of them trucks, projected to reach 700 by 2041. The structure is 60 ft (18.3 m) long and 25 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 | 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 Allison Road over Dunlap Creek built?
It was built in 1963, making it 62 years old in 2025.
What condition is Allison Road over Dunlap Creek 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 Allison Road over Dunlap Creek carry?
About 500 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Allison Road over Dunlap Creek?
The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 25 ft wide.
Who owns Allison Road over Dunlap Creek?
It is owned by the County Highway Agency.