T-690 Duke Street over Swatara Creek
GoodDauphin County, Pennsylvania · Swatra/Han Twp/Humlstown · Structure no. 000000000054365
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 304 ft
- 3 main spans
- Daily traffic
- 1,546
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
T-690 Duke Street over Swatara Creek is a prestressed concrete continuous box beam or girders - multiple carrying T-690 Duke Street over Swatara Creek in Dauphin County, Pennsylvania. It was built in 2017, so it is 8 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 1,546 vehicles a day, roughly 1% of them trucks, projected to reach 1,700 by 2041. The structure is 304 ft (92.7 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| 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 T-690 Duke Street over Swatara Creek built?
It was built in 2017, making it 8 years old in 2025.
What condition is T-690 Duke Street over Swatara 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 May 2023.
How much traffic does T-690 Duke Street over Swatara Creek carry?
About 1,546 vehicles per day (2021 count), of which roughly 1% are trucks.
How long is T-690 Duke Street over Swatara Creek?
The structure is 304 ft (92.7 m) long with a longest span of 100 ft (30.5 m) and a deck 35 ft wide.
Who owns T-690 Duke Street over Swatara Creek?
It is owned by the County Highway Agency.