US Bridges

West Liberty Road over Traynor Lateral

Good

Butte County, California · W of Block RD · Structure no. 12C0445

Built
2023
2 years old
Condition
Good
inspected March 2025
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

West Liberty Road over Traynor Lateral is a concrete culvert carrying West Liberty Road over Traynor Lateral in Butte County, California. It was built in 2023, so it is 2 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 300 by 2044. The structure is 24 ft (7.2 m) long and 67 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWest Liberty Road
CrossesTraynor Lateral
LocationW of Block RD
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.34821, -121.73447
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length24 ft (7.2 m)
Longest span11 ft (3.4 m)
Deck width67 ft (20.4 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic300 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 West Liberty Road over Traynor Lateral built?

It was built in 2023, making it 2 years old in 2025.

What condition is West Liberty Road over Traynor Lateral 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 2025.

How much traffic does West Liberty Road over Traynor Lateral carry?

About 200 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is West Liberty Road over Traynor Lateral?

The structure is 24 ft (7.2 m) long with a longest span of 11 ft (3.4 m) and a deck 67 ft wide.

Who owns West Liberty Road over Traynor Lateral?

It is owned by the County Highway Agency.