Silkwood over Drain
GoodBossier Parish, Louisiana · 0.98 Mi. W. of LA 3 on Si · Structure no. 040800000040415
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected December 2024
- Type
- Channel Beam
- Concrete
- Length
- 100 ft
- 4 main spans
- Daily traffic
- 100
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Silkwood over Drain is a concrete channel beam carrying Silkwood over Drain in Bossier Parish, Louisiana. It was built in 2016, so it is 9 years old, younger than the Louisiana average of 43 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 100 vehicles a day, projected to reach 110 by 2040. The structure is 100 ft (30.5 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Silkwood over Drain built?
It was built in 2016, making it 9 years old in 2025.
What condition is Silkwood over Drain 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 December 2024.
How much traffic does Silkwood over Drain carry?
About 100 vehicles per day (2020 count).
How long is Silkwood over Drain?
The structure is 100 ft (30.5 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.
Who owns Silkwood over Drain?
It is owned by the County Highway Agency.