State Route 59 over Merced River
FairMerced County, California · 10-MER-059-27.15 · Structure no. 39 0250
- Built
- 2009
- 16 years old
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 584 ft
- 3 main spans
- Daily traffic
- 1,425
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 59 over Merced River is a prestressed concrete continuous box beam or girders - single or spread carrying State Route 59 over Merced River in Merced County, California. It was built in 2009, so it is 16 years old, younger 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 1,425 vehicles a day, roughly 13% of them trucks, projected to reach 2,664 by 2046. The structure is 584 ft (178 m) long and 42 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 59 over Merced River built?
It was built in 2009, making it 16 years old in 2025.
What condition is State Route 59 over Merced River 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 May 2024.
How much traffic does State Route 59 over Merced River carry?
About 1,425 vehicles per day (2009 count), of which roughly 13% are trucks.
How long is State Route 59 over Merced River?
The structure is 584 ft (178 m) long with a longest span of 167 ft (51 m) and a deck 42 ft wide.
Who owns State Route 59 over Merced River?
It is owned by the State Highway Agency.