US Bridges

Malton Switch Road over Tehama-Colusa Canal

Good

Tehama County, California · 0.2 MI E Inghragm RD · Structure no. 08C0307

Built
1965
60 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
86 ft
2 main spans
Daily traffic
211
2013 count
Owner
County
County Highway Agency

About this bridge

Malton Switch Road over Tehama-Colusa Canal is a concrete slab carrying Malton Switch Road over Tehama-Colusa Canal in Tehama County, California. It was built in 1965, so it is 60 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 211 vehicles a day, roughly 5% of them trucks, projected to reach 324 by 2041. The structure is 86 ft (26.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMalton Switch Road
CrossesTehama-Colusa Canal
Location0.2 MI E Inghragm RD
RouteCounty Highway 0
CountyTehama County
StateCalifornia
Coordinates39.79768, -122.15571
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 protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating42.5 US tons
Inventory rating25.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span43 ft (13.1 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic211 (2013)
Projected traffic324 by 2041
Trucks5%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Malton Switch Road over Tehama-Colusa Canal built?

It was built in 1965, making it 60 years old in 2025.

What condition is Malton Switch Road over Tehama-Colusa Canal 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 2023.

How much traffic does Malton Switch Road over Tehama-Colusa Canal carry?

About 211 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Malton Switch Road over Tehama-Colusa Canal?

The structure is 86 ft (26.2 m) long with a longest span of 43 ft (13.1 m) and a deck 31 ft wide.

Who owns Malton Switch Road over Tehama-Colusa Canal?

It is owned by the County Highway Agency.