State Route 99 over Mill Creek Ditch
GoodTulare County, California · 06-TUL-099-39.66 · Structure no. 46 0127
- Built
- 1957
- 68 years old, rebuilt 2012
- Condition
- Good
- inspected October 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 31 ft
- 2 main spans
- Daily traffic
- 51,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Mill Creek Ditch is a concrete continuous culvert carrying State Route 99 over Mill Creek Ditch in Tulare County, California. It was built in 1957 and reconstructed in 2012, 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 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 51,000 vehicles a day, roughly 35% of them trucks, projected to reach 104,500 by 2042. The structure is 31 ft (9.4 m) long and 130 ft wide. If it were closed, the detour would be 6.2 mi (10 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Mill Creek Ditch built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2012.
What condition is State Route 99 over Mill Creek Ditch 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 October 2024.
How much traffic does State Route 99 over Mill Creek Ditch carry?
About 51,000 vehicles per day (2009 count), of which roughly 35% are trucks.
How long is State Route 99 over Mill Creek Ditch?
The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m) and a deck 130 ft wide.
Who owns State Route 99 over Mill Creek Ditch?
It is owned by the State Highway Agency.