US Bridges

Road 46 over Walker Creek

Good

Glenn County, California · 0.2 MI West of Road 19 · Structure no. 11C0224

Built
1989
36 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
43 ft
1 main span
Daily traffic
5
2013 count
Owner
County
County Highway Agency

About this bridge

Road 46 over Walker Creek is a concrete slab carrying Road 46 over Walker Creek in Glenn County, California. It was built in 1989, so it is 36 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 5 vehicles a day, roughly 20% of them trucks, projected to reach 9 by 2044. The structure is 43 ft (13 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRoad 46
CrossesWalker Creek
Location0.2 MI West of Road 19
RouteCounty Highway 0
Coordinates39.54609, -122.17334
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
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 span40 ft (12.2 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2013)
Projected traffic9 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Road 46 over Walker Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Road 46 over Walker 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 August 2024.

How much traffic does Road 46 over Walker Creek carry?

About 5 vehicles per day (2013 count), of which roughly 20% are trucks.

How long is Road 46 over Walker Creek?

The structure is 43 ft (13 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.

Who owns Road 46 over Walker Creek?

It is owned by the County Highway Agency.