Old 99W over Nobo Draw
GoodColusa County, California · 0.5 MI North of Hahn RD · Structure no. 15C0047
- Built
- 1946
- 79 years old
- Condition
- Good
- inspected October 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 3 main spans
- Daily traffic
- 5,274
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Old 99W over Nobo Draw is a concrete continuous culvert carrying Old 99W over Nobo Draw in Colusa County, California. It was built in 1946, so it is 79 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 5,274 vehicles a day, roughly 10% of them trucks, projected to reach 4,088 by 2042. The structure is 26 ft (7.8 m) long and 42 ft wide. If it were closed, the detour would be 13 mi (21 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 | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old 99W over Nobo Draw built?
It was built in 1946, making it 79 years old in 2025.
What condition is Old 99W over Nobo Draw 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 October 2023.
How much traffic does Old 99W over Nobo Draw carry?
About 5,274 vehicles per day (2014 count), of which roughly 10% are trucks.
How long is Old 99W over Nobo Draw?
The structure is 26 ft (7.8 m) long with a longest span of 8 ft (2.5 m) and a deck 42 ft wide.
Who owns Old 99W over Nobo Draw?
It is owned by the County Highway Agency.