State Route 99 SB over Miles Creek Overflow
GoodMerced County, California · 10-MER-099-10.98 · Structure no. 39 0057L
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected April 2024
- Type
- Slab
- Concrete Continuous
- Length
- 82 ft
- 2 main spans
- Daily traffic
- 19,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 SB over Miles Creek Overflow is a concrete continuous slab carrying State Route 99 SB over Miles Creek Overflow in Merced 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 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 19,500 vehicles a day, projected to reach 28,455 by 2042. The structure is 82 ft (25 m) long and 58 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 SB over Miles Creek Overflow built?
It was built in 2008, making it 17 years old in 2025.
What condition is State Route 99 SB over Miles Creek Overflow 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 April 2024.
How much traffic does State Route 99 SB over Miles Creek Overflow carry?
About 19,500 vehicles per day (2009 count).
How long is State Route 99 SB over Miles Creek Overflow?
The structure is 82 ft (25 m) long with a longest span of 41 ft (12.5 m) and a deck 58 ft wide.
Who owns State Route 99 SB over Miles Creek Overflow?
It is owned by the State Highway Agency.