Iowa Hill RD over N Shirttail Canyon Creek
GoodPlacer County, California · 4 MI E of Iowa Hill · Structure no. 19C0175
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected May 2022
- Type
- Slab
- Concrete
- Length
- 53 ft
- 2 main spans
- Daily traffic
- 200
- 2011 count
- Owner
- Local
- Other Local Agency
About this bridge
Iowa Hill RD over N Shirttail Canyon Creek is a concrete slab carrying Iowa Hill RD over N Shirttail Canyon Creek in Placer County, California. It was built in 1981, so it is 44 years old, younger than the California 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 200 vehicles a day, roughly 8% of them trucks, projected to reach 495 by 2044. The structure is 53 ft (16.2 m) long and 28 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Iowa Hill RD over N Shirttail Canyon Creek built?
It was built in 1981, making it 44 years old in 2025.
What condition is Iowa Hill RD over N Shirttail Canyon 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 2022.
How much traffic does Iowa Hill RD over N Shirttail Canyon Creek carry?
About 200 vehicles per day (2011 count), of which roughly 8% are trucks.
How long is Iowa Hill RD over N Shirttail Canyon Creek?
The structure is 53 ft (16.2 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.
Who owns Iowa Hill RD over N Shirttail Canyon Creek?
It is owned by the Other Local Agency and maintained by the County Highway Agency.