I-99 / US 220 Nbl over 8th Ave Ext Blair Gap Rn
FairBlair County, Pennsylvania · Duncansville · Structure no. 000000000005585
- Built
- 1984
- 41 years old, rebuilt 2013
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 224 ft
- 2 main spans
- Daily traffic
- 8,640
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-99 / US 220 Nbl over 8th Ave Ext Blair Gap Rn is a prestressed concrete stringer/multi-beam or girder carrying I-99 / US 220 Nbl over 8th Ave Ext Blair Gap Rn in Blair County, Pennsylvania. It was built in 1984 and reconstructed in 2013, so it is 41 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 6 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 8,640 vehicles a day, roughly 15% of them trucks, projected to reach 12,358 by 2032. The structure is 224 ft (68.3 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-99 / US 220 Nbl over 8th Ave Ext Blair Gap Rn built?
It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2013.
What condition is I-99 / US 220 Nbl 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 March 2024.
How much traffic does I-99 / US 220 Nbl over 8th Ave Ext Blair Gap Rn carry?
About 8,640 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is I-99 / US 220 Nbl 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 Nbl over 8th Ave Ext Blair Gap Rn?
It is owned by the State Highway Agency.