State Route 99 NB over State Route 149
FairButte County, California · 03-BUT-099-R21.73R · Structure no. 12 0198
- Built
- 2008
- 17 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 773 ft
- 6 main spans
- Daily traffic
- 9,600
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 NB over State Route 149 is a prestressed concrete continuous box beam or girders - multiple carrying State Route 99 NB over State Route 149 in Butte County, California. It was built in 2008, so it is 17 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 9,600 vehicles a day, roughly 9% of them trucks, projected to reach 18,941 by 2041. The structure is 773 ft (235.5 m) long and 42 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 NB over State Route 149 built?
It was built in 2008, making it 17 years old in 2025.
What condition is State Route 99 NB over State Route 149 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.
How much traffic does State Route 99 NB over State Route 149 carry?
About 9,600 vehicles per day (2020 count), of which roughly 9% are trucks.
How long is State Route 99 NB over State Route 149?
The structure is 773 ft (235.5 m) long with a longest span of 171 ft (52 m) and a deck 42 ft wide.
Who owns State Route 99 NB over State Route 149?
It is owned by the State Highway Agency.