State Route 99 SB over Berenda Slough
FairMadera County, California · 06-MAD-099-24.78 · Structure no. 41 0044L
- Built
- 1957
- 68 years old, rebuilt 1993
- Condition
- Fair
- inspected June 2023
- Type
- Slab
- Concrete Continuous
- Length
- 393 ft
- 15 main spans
- Daily traffic
- 19,250
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 SB over Berenda Slough is a concrete continuous slab carrying State Route 99 SB over Berenda Slough in Madera County, California. It was built in 1957 and reconstructed in 1993, so it is 68 years old, older 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 19,250 vehicles a day, roughly 27% of them trucks, projected to reach 34,345 by 2043. The structure is 393 ft (119.8 m) long and 43 ft wide. If it were closed, the detour would be 13 mi (21 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 State Route 99 SB over Berenda Slough built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1993.
What condition is State Route 99 SB over Berenda Slough 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 June 2023.
How much traffic does State Route 99 SB over Berenda Slough carry?
About 19,250 vehicles per day (2009 count), of which roughly 27% are trucks.
How long is State Route 99 SB over Berenda Slough?
The structure is 393 ft (119.8 m) long with a longest span of 26 ft (7.9 m) and a deck 43 ft wide.
Who owns State Route 99 SB over Berenda Slough?
It is owned by the State Highway Agency.