SR 99 - I 99 over SR 550-PA 550
GoodCentre County, Pennsylvania · Bellefonte · Structure no. 000000000039497
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 144 ft
- 1 main span
- Daily traffic
- 9,189
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 99 - I 99 over SR 550-PA 550 is a prestressed concrete stringer/multi-beam or girder carrying SR 99 - I 99 over SR 550-PA 550 in Centre County, Pennsylvania. It was built in 1997, so it is 28 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 9,189 vehicles a day, roughly 20% of them trucks, projected to reach 9,344 by 2044. The structure is 144 ft (43.9 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 99 - I 99 over SR 550-PA 550 built?
It was built in 1997, making it 28 years old in 2025.
What condition is SR 99 - I 99 over SR 550-PA 550 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 July 2024.
How much traffic does SR 99 - I 99 over SR 550-PA 550 carry?
About 9,189 vehicles per day (2024 count), of which roughly 20% are trucks.
How long is SR 99 - I 99 over SR 550-PA 550?
The structure is 144 ft (43.9 m) long with a longest span of 140 ft (42.7 m) and a deck 44 ft wide.
Who owns SR 99 - I 99 over SR 550-PA 550?
It is owned by the State Highway Agency.