24 1/2 Street over Norfolk Southern RR
FairBlair County, Pennsylvania · 24 1/2 ST Altoona · Structure no. 000000000005981
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected October 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 71 ft
- 1 main span
- Daily traffic
- 7,701
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
24 1/2 Street over Norfolk Southern RR is a prestressed concrete box beam or girders - multiple carrying 24 1/2 Street over Norfolk Southern RR in Blair County, Pennsylvania. It was built in 1990, so it is 35 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 7,701 vehicles a day, roughly 3% of them trucks, projected to reach 10,372 by 2043. The structure is 71 ft (21.6 m) long and 39 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 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 24 1/2 Street over Norfolk Southern RR built?
It was built in 1990, making it 35 years old in 2025.
What condition is 24 1/2 Street over Norfolk Southern RR 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 24 1/2 Street over Norfolk Southern RR carry?
About 7,701 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is 24 1/2 Street over Norfolk Southern RR?
The structure is 71 ft (21.6 m) long with a longest span of 69 ft (21 m) and a deck 39 ft wide.
Who owns 24 1/2 Street over Norfolk Southern RR?
It is owned by the City or Municipal Highway Agency.