Mill Road T-564 over Conewago Creek
GoodDauphin County, Pennsylvania · CWT-2 Mill Road Bridge · Structure no. 000000000069879
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 102 ft
- 1 main span
- Daily traffic
- 182
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Mill Road T-564 over Conewago Creek is a prestressed concrete box beam or girders - multiple carrying Mill Road T-564 over Conewago Creek in Dauphin County, Pennsylvania. It was built in 2021, so it is 4 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 182 vehicles a day, roughly 3% of them trucks, projected to reach 202 by 2043. The structure is 102 ft (31.1 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| 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 Road T-564 over Conewago Creek built?
It was built in 2021, making it 4 years old in 2025.
What condition is Mill Road T-564 over Conewago Creek 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 June 2023.
How much traffic does Mill Road T-564 over Conewago Creek carry?
About 182 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Mill Road T-564 over Conewago Creek?
The structure is 102 ft (31.1 m) long with a longest span of 102 ft (31.1 m) and a deck 23 ft wide.
Who owns Mill Road T-564 over Conewago Creek?
It is owned by the Town or Township Highway Agency.