State Route 299 over Pit River
PoorModoc County, California · 02-MOD-299-17.95 · Structure no. 03 0005
- Built
- 1962
- 63 years old
- Condition
- Poor
- inspected August 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 305 ft
- 5 main spans
- Daily traffic
- 1,200
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 299 over Pit River is a concrete continuous tee beam carrying State Route 299 over Pit River in Modoc County, California. It was built in 1962, so it is 63 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 3 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 1,200 vehicles a day, roughly 22% of them trucks, projected to reach 1,728 by 2040. The structure is 305 ft (93 m) long and 34 ft wide. If it were closed, the detour would be 39.8 mi (64 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 State Route 299 over Pit River built?
It was built in 1962, making it 63 years old in 2025.
What condition is State Route 299 over Pit River 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 August 2023.
How much traffic does State Route 299 over Pit River carry?
About 1,200 vehicles per day (2015 count), of which roughly 22% are trucks.
How long is State Route 299 over Pit River?
The structure is 305 ft (93 m) long with a longest span of 67 ft (20.3 m) and a deck 34 ft wide.
Who owns State Route 299 over Pit River?
It is owned by the State Highway Agency.