Washington RD over Sand Slough
PoorMerced County, California · 1.7 MI W Harmon RD · Structure no. 39C0348
- Built
- 1950
- 75 years old
- Condition
- Poor
- inspected November 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 555 ft
- 16 main spans
- Daily traffic
- 267
- 2008 count
- Owner
- County
- County Highway Agency
About this bridge
Washington RD over Sand Slough is a concrete continuous tee beam carrying Washington RD over Sand Slough in Merced County, California. It was built in 1950, so it is 75 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 267 vehicles a day, roughly 24% of them trucks, projected to reach 493 by 2042. The structure is 555 ft (169.2 m) long and 18 ft wide. If it were closed, the detour would be 13 mi (21 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Washington RD over Sand Slough built?
It was built in 1950, making it 75 years old in 2025.
What condition is Washington RD over Sand Slough 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 November 2024.
How much traffic does Washington RD over Sand Slough carry?
About 267 vehicles per day (2008 count), of which roughly 24% are trucks.
How long is Washington RD over Sand Slough?
The structure is 555 ft (169.2 m) long with a longest span of 35 ft (10.8 m) and a deck 18 ft wide.
Who owns Washington RD over Sand Slough?
It is owned by the County Highway Agency.