SR 99 I-99 over SR 550-PA 550
GoodCentre County, Pennsylvania · 4 MI South State College · Structure no. 000000000042470
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected July 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 245 ft
- 3 main spans
- Daily traffic
- 12,454
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 99 I-99 over SR 550-PA 550 is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 99 I-99 over SR 550-PA 550 in Centre County, Pennsylvania. It was built in 2004, so it is 21 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 12,454 vehicles a day, roughly 14% of them trucks, projected to reach 14,635 by 2044. The structure is 245 ft (74.7 m) long and 46 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 2004, making it 21 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 2022.
How much traffic does SR 99 I-99 over SR 550-PA 550 carry?
About 12,454 vehicles per day (2024 count), of which roughly 14% are trucks.
How long is SR 99 I-99 over SR 550-PA 550?
The structure is 245 ft (74.7 m) long with a longest span of 91 ft (27.7 m) and a deck 46 ft wide.
Who owns SR 99 I-99 over SR 550-PA 550?
It is owned by the State Highway Agency.