I-99 / US 220 Sbl over 8th Ave Ext Blair Gap Rn
FairBlair County, Pennsylvania · Duncansville · Structure no. 000000000005587
- Built
- 1983
- 42 years old, rebuilt 2013
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 224 ft
- 2 main spans
- Daily traffic
- 7,809
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-99 / US 220 Sbl over 8th Ave Ext Blair Gap Rn is a prestressed concrete stringer/multi-beam or girder carrying I-99 / US 220 Sbl over 8th Ave Ext Blair Gap Rn in Blair County, Pennsylvania. It was built in 1983 and reconstructed in 2013, so it is 42 years old, younger 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 7,809 vehicles a day, roughly 12% of them trucks, projected to reach 12,271 by 2032. The structure is 224 ft (68.3 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
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 I-99 / US 220 Sbl over 8th Ave Ext Blair Gap Rn built?
It was built in 1983, making it 42 years old in 2025. It was reconstructed in 2013.
What condition is I-99 / US 220 Sbl over 8th Ave Ext Blair Gap Rn 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 October 2023.
How much traffic does I-99 / US 220 Sbl over 8th Ave Ext Blair Gap Rn carry?
About 7,809 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is I-99 / US 220 Sbl over 8th Ave Ext Blair Gap Rn?
The structure is 224 ft (68.3 m) long with a longest span of 116 ft (35.4 m) and a deck 46 ft wide.
Who owns I-99 / US 220 Sbl over 8th Ave Ext Blair Gap Rn?
It is owned by the State Highway Agency.