Market St. T-551 over Wiconisco Creek
FairDauphin County, Pennsylvania · Reading DEPOT/.2N Lykens · Structure no. 000000000014721
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 59 ft
- 1 main span
- Daily traffic
- 100
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Market St. T-551 over Wiconisco Creek is a prestressed concrete box beam or girders - multiple carrying Market St. T-551 over Wiconisco Creek in Dauphin County, Pennsylvania. It was built in 1982, so it is 43 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2041. The structure is 59 ft (18 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Market St. T-551 over Wiconisco Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is Market St. T-551 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 June 2023.
How much traffic does Market St. T-551 over Wiconisco Creek carry?
About 100 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Market St. T-551 over Wiconisco Creek?
The structure is 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 41 ft wide.
Who owns Market St. T-551 over Wiconisco Creek?
It is owned by the County Highway Agency.