Lower Twin Lane RD over SR 1
GoodNew Castle County, Delaware · West of Delaware City · Structure no. 1318 406
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected August 2022
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 239 ft
- 2 main spans
- Daily traffic
- 729
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Lower Twin Lane RD over SR 1 is a steel continuous stringer/multi-beam or girder carrying Lower Twin Lane RD over SR 1 in New Castle County, Delaware. It was built in 1992, so it is 33 years old, younger than the Delaware average of 47.3 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 729 vehicles a day, roughly 9% of them trucks, projected to reach 911 by 2042. The structure is 239 ft (72.7 m) long and 47 ft wide.
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lower Twin Lane RD over SR 1 built?
It was built in 1992, making it 33 years old in 2025.
What condition is Lower Twin Lane RD over SR 1 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 August 2022.
How much traffic does Lower Twin Lane RD over SR 1 carry?
About 729 vehicles per day (2021 count), of which roughly 9% are trucks.
How long is Lower Twin Lane RD over SR 1?
The structure is 239 ft (72.7 m) long with a longest span of 116 ft (35.4 m) and a deck 47 ft wide.
Who owns Lower Twin Lane RD over SR 1?
It is owned by the State Highway Agency.