US Bridges

Clayton Creek RD over Clayton Creek

Good

Lake County, California · 0.6 MI S/E of SR 29 · Structure no. 14C0133

Built
2021
4 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
48 ft
1 main span
Daily traffic
130
2017 count
Owner
County
County Highway Agency

About this bridge

Clayton Creek RD over Clayton Creek is a concrete slab carrying Clayton Creek RD over Clayton Creek in Lake County, California. It was built in 2021, so it is 4 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 130 vehicles a day, roughly 5% of them trucks, projected to reach 206 by 2046. The structure is 48 ft (14.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesClayton Creek RD
CrossesClayton Creek
Location0.6 MI S/E of SR 29
RouteCounty Highway 0
Coordinates38.89613, -122.60433
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length48 ft (14.5 m)
Longest span43 ft (13 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2017)
Projected traffic206 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Clayton Creek RD over Clayton Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is Clayton Creek RD over Clayton 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 Clayton Creek RD over Clayton Creek carry?

About 130 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Clayton Creek RD over Clayton Creek?

The structure is 48 ft (14.5 m) long with a longest span of 43 ft (13 m) and a deck 26 ft wide.

Who owns Clayton Creek RD over Clayton Creek?

It is owned by the County Highway Agency.