Iron Mountain Road over Flat Creek
GoodShasta County, California · Iron Mtn RD 3KM N.Sr 299 · Structure no. 06C0021
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected August 2022
- Type
- Slab
- Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 114
- 2005 count
- Owner
- County
- County Highway Agency
About this bridge
Iron Mountain Road over Flat Creek is a concrete slab carrying Iron Mountain Road over Flat Creek in Shasta County, California. It was built in 1994, so it is 31 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 114 vehicles a day, roughly 10% of them trucks, projected to reach 312 by 2044. The structure is 67 ft (20.5 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 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 Iron Mountain Road over Flat Creek built?
It was built in 1994, making it 31 years old in 2025.
What condition is Iron Mountain Road over Flat 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 August 2022.
How much traffic does Iron Mountain Road over Flat Creek carry?
About 114 vehicles per day (2005 count), of which roughly 10% are trucks.
How long is Iron Mountain Road over Flat Creek?
The structure is 67 ft (20.5 m) long with a longest span of 67 ft (20.5 m) and a deck 28 ft wide.
Who owns Iron Mountain Road over Flat Creek?
It is owned by the County Highway Agency.