Griffith Road over State Route 99
GoodMerced County, California · 10-MER-099-R36.70 · Structure no. 39 0192
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 216 ft
- 2 main spans
- Daily traffic
- 900
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
Griffith Road over State Route 99 is a prestressed concrete continuous box beam or girders - multiple carrying Griffith Road over State Route 99 in Merced County, California. It was built in 1973, so it is 52 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 900 vehicles a day, roughly 10% of them trucks, projected to reach 1,109 by 2046. The structure is 216 ft (65.9 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Griffith Road over State Route 99 built?
It was built in 1973, making it 52 years old in 2025.
What condition is Griffith Road over State Route 99 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 May 2024.
How much traffic does Griffith Road over State Route 99 carry?
About 900 vehicles per day (2015 count), of which roughly 10% are trucks.
How long is Griffith Road over State Route 99?
The structure is 216 ft (65.9 m) long with a longest span of 108 ft (32.9 m) and a deck 39 ft wide.
Who owns Griffith Road over State Route 99?
It is owned by the State Highway Agency.