Old HWY 99 W over Moore Creek
PoorTehama County, California · 1.2 MI N Glenn CO Line · Structure no. 08C0121
- Built
- 1914
- 111 years old, rebuilt 1953
- Condition
- Poor
- inspected April 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 63 ft
- 3 main spans
- Daily traffic
- 1,922
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Old HWY 99 W over Moore Creek is a concrete continuous tee beam carrying Old HWY 99 W over Moore Creek in Tehama County, California. It was built in 1914 and reconstructed in 1953, so it is 111 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 1,922 vehicles a day, roughly 8% of them trucks, projected to reach 4,405 by 2041. The structure is 63 ft (19.2 m) long and 40 ft wide. If it were closed, the detour would be 24.2 mi (39 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old HWY 99 W over Moore Creek built?
It was built in 1914, making it 111 years old in 2025. It was reconstructed in 1953.
What condition is Old HWY 99 W over Moore 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 April 2023.
How much traffic does Old HWY 99 W over Moore Creek carry?
About 1,922 vehicles per day (2013 count), of which roughly 8% are trucks.
How long is Old HWY 99 W over Moore Creek?
The structure is 63 ft (19.2 m) long with a longest span of 21 ft (6.4 m) and a deck 40 ft wide.
Who owns Old HWY 99 W over Moore Creek?
It is owned by the County Highway Agency.