IRR CR 111 over No 46 Drain
GoodModoc County, California · 0.6 MI S of SH 139 · Structure no. 03C0065
- Built
- 1954
- 71 years old
- Condition
- Good
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 63 ft
- 3 main spans
- Daily traffic
- 169
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
IRR CR 111 over No 46 Drain is a concrete continuous slab carrying IRR CR 111 over No 46 Drain in Modoc County, California. It was built in 1954, so it is 71 years old, older 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 169 vehicles a day, roughly 10% of them trucks, projected to reach 314 by 2041. The structure is 63 ft (19.2 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR CR 111 over No 46 Drain built?
It was built in 1954, making it 71 years old in 2025.
What condition is IRR CR 111 over No 46 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 August 2023.
How much traffic does IRR CR 111 over No 46 Drain carry?
About 169 vehicles per day (2015 count), of which roughly 10% are trucks.
How long is IRR CR 111 over No 46 Drain?
The structure is 63 ft (19.2 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.
Who owns IRR CR 111 over No 46 Drain?
It is owned by the County Highway Agency.