Hemlock Hollow RD over Sycamore Run
FairAllegheny County, Pennsylvania · 432003 0.2 MI S/ Rmr · Structure no. 000000000002592
- Built
- 1950
- 75 years old, rebuilt 1978
- Condition
- Fair
- inspected July 2023
- Type
- Slab
- Concrete
- Length
- 32 ft
- 1 main span
- Daily traffic
- 3,974
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Hemlock Hollow RD over Sycamore Run is a concrete slab carrying Hemlock Hollow RD over Sycamore Run in Allegheny County, Pennsylvania. It was built in 1950 and reconstructed in 1978, so it is 75 years old, older than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 3,974 vehicles a day, roughly 7% of them trucks, projected to reach 4,500 by 2047. The structure is 32 ft (9.8 m) long and 24 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 5 or 6. Minor deterioration is present but the structure is sound.
| 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 | 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 Hemlock Hollow RD over Sycamore Run built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1978.
What condition is Hemlock Hollow RD over Sycamore Run in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does Hemlock Hollow RD over Sycamore Run carry?
About 3,974 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Hemlock Hollow RD over Sycamore Run?
The structure is 32 ft (9.8 m) long with a longest span of 26 ft (7.9 m) and a deck 24 ft wide.
Who owns Hemlock Hollow RD over Sycamore Run?
It is owned by the City or Municipal Highway Agency.