Mill RD T-464 over Wiconisco Creek
FairDauphin County, Pennsylvania · 2.8 W E-Ville/Wiconisco · Structure no. 000000000014709
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 77 ft
- 1 main span
- Daily traffic
- 150
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Mill RD T-464 over Wiconisco Creek is a prestressed concrete box beam or girders - multiple carrying Mill RD T-464 over Wiconisco Creek in Dauphin 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 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 150 vehicles a day, roughly 2% of them trucks, projected to reach 100 by 2043. The structure is 77 ft (23.5 m) long and 28 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 | 7 Good | Some minor problems. |
| 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 Mill RD T-464 over Wiconisco Creek built?
It was built in 1990, making it 35 years old in 2025.
What condition is Mill RD T-464 over Wiconisco Creek 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 August 2023.
How much traffic does Mill RD T-464 over Wiconisco Creek carry?
About 150 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Mill RD T-464 over Wiconisco Creek?
The structure is 77 ft (23.5 m) long with a longest span of 77 ft (23.5 m) and a deck 28 ft wide.
Who owns Mill RD T-464 over Wiconisco Creek?
It is owned by the County Highway Agency.