US Bridges

Hamilton Nord Cana over Rock Creek

Good

Butte County, California · 3.0 MI N of SH 32 · Structure no. 12C0307

Built
1967
58 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete Continuous
Length
100 ft
4 main spans
Daily traffic
694
2016 count
Owner
County
County Highway Agency

About this bridge

Hamilton Nord Cana over Rock Creek is a concrete continuous slab carrying Hamilton Nord Cana over Rock Creek in Butte County, California. It was built in 1967, so it is 58 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 694 vehicles a day, roughly 13% of them trucks, projected to reach 903 by 2042. The structure is 100 ft (30.6 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHamilton Nord Cana
CrossesRock Creek
Location3.0 MI N of SH 32
RouteCounty Highway 0
Coordinates39.79451, -121.95677
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length100 ft (30.6 m)
Longest span28 ft (8.6 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic694 (2016)
Projected traffic903 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hamilton Nord Cana over Rock Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Hamilton Nord Cana over Rock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Hamilton Nord Cana over Rock Creek carry?

About 694 vehicles per day (2016 count), of which roughly 13% are trucks.

How long is Hamilton Nord Cana over Rock Creek?

The structure is 100 ft (30.6 m) long with a longest span of 28 ft (8.6 m) and a deck 29 ft wide.

Who owns Hamilton Nord Cana over Rock Creek?

It is owned by the County Highway Agency.