State Route 49 over Cosumnes River
PoorAmador County, California · 10-AMA-049-22.09 · Structure no. 26 0033
- Built
- 1952
- 73 years old
- Condition
- Poor
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 256 ft
- 3 main spans
- Daily traffic
- 2,175
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 49 over Cosumnes River is a concrete continuous box beam or girders - multiple carrying State Route 49 over Cosumnes River in Amador County, California. It was built in 1952, so it is 73 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 2,175 vehicles a day, roughly 10% of them trucks, projected to reach 5,326 by 2041. The structure is 256 ft (78 m) long and 33 ft wide. If it were closed, the detour would be 37.3 mi (60 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 49 over Cosumnes River built?
It was built in 1952, making it 73 years old in 2025.
What condition is State Route 49 over Cosumnes River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.
How much traffic does State Route 49 over Cosumnes River carry?
About 2,175 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is State Route 49 over Cosumnes River?
The structure is 256 ft (78 m) long with a longest span of 110 ft (33.5 m) and a deck 33 ft wide.
Who owns State Route 49 over Cosumnes River?
It is owned by the State Highway Agency.