Hamilton Road over West Branch Mill Creek
PoorPosted for loadDel Norte County, California · 2.1 Miles East of US 101 · Structure no. 01P0011
- Built
- 1950
- 75 years old
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 89 ft
- 1 main span
- Daily traffic
- 25
- 2003 count
- Owner
- State
- State Park, Forest, or Reservation Agency
About this bridge
Hamilton Road over West Branch Mill Creek is a steel stringer/multi-beam or girder carrying Hamilton Road over West Branch Mill Creek in Del Norte 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 3 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. Its operating status is: posted for load restriction.
It carries about 25 vehicles a day, roughly 5% of them trucks, projected to reach 42 by 2041. The structure is 89 ft (27.2 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hamilton Road over West Branch Mill Creek built?
It was built in 1950, making it 75 years old in 2025.
What condition is Hamilton Road over West Branch Mill Creek 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 June 2024.
How much traffic does Hamilton Road over West Branch Mill Creek carry?
About 25 vehicles per day (2003 count), of which roughly 5% are trucks.
How long is Hamilton Road over West Branch Mill Creek?
The structure is 89 ft (27.2 m) long with a longest span of 81 ft (24.7 m) and a deck 18 ft wide.
Who owns Hamilton Road over West Branch Mill Creek?
It is owned by the State Park, Forest, or Reservation Agency.