US Bridges

River Valley Drive over Clover Creek

Good

Shasta County, California · 0.1 MI W of Airport RD · Structure no. 06C0288

Built
1934
91 years old, rebuilt 1964
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
55 ft
2 main spans
Daily traffic
300
2014 count
Owner
County
County Highway Agency

About this bridge

River Valley Drive over Clover Creek is a concrete continuous slab carrying River Valley Drive over Clover Creek in Shasta County, California. It was built in 1934 and reconstructed in 1964, so it is 91 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 300 vehicles a day, roughly 3% of them trucks, projected to reach 156 by 2041. The structure is 55 ft (16.8 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRiver Valley Drive
CrossesClover Creek
Location0.1 MI W of Airport RD
RouteCounty Highway 0
Coordinates40.47656, -122.2951
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span27 ft (8.2 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2014)
Projected traffic156 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 River Valley Drive over Clover Creek built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1964.

What condition is River Valley Drive over Clover 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 March 2024.

How much traffic does River Valley Drive over Clover Creek carry?

About 300 vehicles per day (2014 count), of which roughly 3% are trucks.

How long is River Valley Drive over Clover Creek?

The structure is 55 ft (16.8 m) long with a longest span of 27 ft (8.2 m) and a deck 29 ft wide.

Who owns River Valley Drive over Clover Creek?

It is owned by the County Highway Agency.