Mill ST over Robinson Run South Branc
GoodAllegheny County, Pennsylvania · RS03 Robinson Runsbr #3 · Structure no. 000000000069820
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 80 ft
- 1 main span
- Daily traffic
- 323
- 2005 count
- Owner
- County
- County Highway Agency
About this bridge
Mill ST over Robinson Run South Branc is a prestressed concrete box beam or girders - multiple carrying Mill ST over Robinson Run South Branc in Allegheny County, Pennsylvania. It was built in 2022, so it is 3 years old, younger than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 323 vehicles a day, roughly 2% of them trucks, projected to reach 350 by 2022. The structure is 80 ft (24.4 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mill ST over Robinson Run South Branc built?
It was built in 2022, making it 3 years old in 2025.
What condition is Mill ST over Robinson Run South Branc in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does Mill ST over Robinson Run South Branc carry?
About 323 vehicles per day (2005 count), of which roughly 2% are trucks.
How long is Mill ST over Robinson Run South Branc?
The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.
Who owns Mill ST over Robinson Run South Branc?
It is owned by the County Highway Agency.