US Bridges

Rock CR RD over Rock Creek

Good

Shasta County, California · 6.5 MI of S.R. 44 · Structure no. 06C0364

Built
2003
22 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
43 ft
1 main span
Daily traffic
40
2014 count
Owner
County
County Highway Agency

About this bridge

Rock CR RD over Rock Creek is a concrete slab carrying Rock CR RD over Rock Creek in Shasta County, California. It was built in 2003, so it is 22 years old, younger 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 40 vehicles a day, roughly 1% of them trucks, projected to reach 148 by 2041. The structure is 43 ft (13 m) long and 26 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRock CR RD
CrossesRock Creek
Location6.5 MI of S.R. 44
RouteCounty Highway 0
Coordinates40.45892, -121.7825
Functional classRural Local

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 protection9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length43 ft (13 m)
Longest span43 ft (13 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2014)
Projected traffic148 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Rock CR RD over Rock Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Rock CR RD 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 April 2024.

How much traffic does Rock CR RD over Rock Creek carry?

About 40 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Rock CR RD over Rock Creek?

The structure is 43 ft (13 m) long with a longest span of 43 ft (13 m) and a deck 26 ft wide.

Who owns Rock CR RD over Rock Creek?

It is owned by the County Highway Agency.