Hogan Dam RD over Calaveras River
PoorCalaveras County, California · 3.8 MI S/O SR 26 · Structure no. 30C0058
- Built
- 1960
- 65 years old
- Condition
- Poor
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 125 ft
- 3 main spans
- Daily traffic
- 368
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Hogan Dam RD over Calaveras River is a steel stringer/multi-beam or girder carrying Hogan Dam RD over Calaveras River in Calaveras County, California. It was built in 1960, so it is 65 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 368 vehicles a day, roughly 6% of them trucks, projected to reach 375 by 2041. The structure is 125 ft (38 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hogan Dam RD over Calaveras River built?
It was built in 1960, making it 65 years old in 2025.
What condition is Hogan Dam RD over Calaveras 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 February 2023.
How much traffic does Hogan Dam RD over Calaveras River carry?
About 368 vehicles per day (2011 count), of which roughly 6% are trucks.
How long is Hogan Dam RD over Calaveras River?
The structure is 125 ft (38 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.
Who owns Hogan Dam RD over Calaveras River?
It is owned by the County Highway Agency.