State Route 99NB over South Lagoon Creek
GoodSacramento County, California · 03-SAC-099-4.91 · Structure no. 24 0028
- Built
- 1958
- 67 years old, rebuilt 2022
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 90 ft
- 3 main spans
- Daily traffic
- 31,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99NB over South Lagoon Creek is a concrete continuous slab carrying State Route 99NB over South Lagoon Creek in Sacramento County, California. It was built in 1958 and reconstructed in 2022, so it is 67 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 31,500 vehicles a day, roughly 18% of them trucks, projected to reach 56,992 by 2046. The structure is 90 ft (27.4 m) long and 117 ft wide. If it were closed, the detour would be 19.9 mi (32 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99NB over South Lagoon Creek built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2022.
What condition is State Route 99NB over South Lagoon Creek 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 June 2024.
How much traffic does State Route 99NB over South Lagoon Creek carry?
About 31,500 vehicles per day (2009 count), of which roughly 18% are trucks.
How long is State Route 99NB over South Lagoon Creek?
The structure is 90 ft (27.4 m) long with a longest span of 44 ft (13.3 m) and a deck 117 ft wide.
Who owns State Route 99NB over South Lagoon Creek?
It is owned by the State Highway Agency.