Old 99W over Stone Corral Creek
PoorColusa County, California · 0.6 MI N Mxwl-Sites RD · Structure no. 15C0090
- Built
- 1927
- 98 years old, rebuilt 1955
- Condition
- Poor
- inspected July 2023
- Type
- Tee Beam
- Concrete
- Length
- 61 ft
- 3 main spans
- Daily traffic
- 1,976
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Old 99W over Stone Corral Creek is a concrete tee beam carrying Old 99W over Stone Corral Creek in Colusa County, California. It was built in 1927 and reconstructed in 1955, so it is 98 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 1,976 vehicles a day, roughly 10% of them trucks, projected to reach 2,142 by 2041. The structure is 61 ft (18.6 m) long and 41 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Old 99W over Stone Corral Creek built?
It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1955.
What condition is Old 99W over Stone Corral Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.
How much traffic does Old 99W over Stone Corral Creek carry?
About 1,976 vehicles per day (2014 count), of which roughly 10% are trucks.
How long is Old 99W over Stone Corral Creek?
The structure is 61 ft (18.6 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.
Who owns Old 99W over Stone Corral Creek?
It is owned by the County Highway Agency.