US016AEF over Grizzly Bear Ck
GoodPennington County, South Dakota · At Keystone · Structure no. 000000052317436
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 37 ft
- 1 main span
- Daily traffic
- 1,993
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US016AEF over Grizzly Bear Ck is a concrete slab carrying US016AEF over Grizzly Bear Ck in Pennington County, South Dakota. It was built in 1973, so it is 52 years old, older 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 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 1,993 vehicles a day, roughly 1% of them trucks, projected to reach 1,993 by 2043. The structure is 37 ft (11.3 m) long and 27 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US016AEF over Grizzly Bear Ck built?
It was built in 1973, making it 52 years old in 2025.
What condition is US016AEF over Grizzly Bear Ck 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 April 2023.
How much traffic does US016AEF over Grizzly Bear Ck carry?
About 1,993 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is US016AEF over Grizzly Bear Ck?
The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.4 m) and a deck 27 ft wide.
Who owns US016AEF over Grizzly Bear Ck?
It is owned by the State Highway Agency.