Twilight Drive over Iowa Ditch
GoodPennington County, South Dakota · 0.3W of Reservoir RD · Structure no. 000000052457310
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected July 2021
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 389
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Twilight Drive over Iowa Ditch is a concrete continuous culvert carrying Twilight Drive over Iowa Ditch in Pennington County, South Dakota. It was built in 1998, so it is 27 years old, younger than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 389 vehicles a day, roughly 3% of them trucks, projected to reach 389 by 2032. The structure is 25 ft (7.5 m) long and 38 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 |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Twilight Drive over Iowa Ditch built?
It was built in 1998, making it 27 years old in 2025.
What condition is Twilight Drive over Iowa Ditch 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 July 2021.
How much traffic does Twilight Drive over Iowa Ditch carry?
About 389 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Twilight Drive over Iowa Ditch?
The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m) and a deck 38 ft wide.
Who owns Twilight Drive over Iowa Ditch?
It is owned by the County Highway Agency.