US Bridges

Ingram Road over Tehama-Colusa Canal

Good

Tehama County, California · 0.45 MI N Christian RD · Structure no. 08C0306

Built
1968
57 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
83 ft
2 main spans
Daily traffic
87
2013 count
Owner
County
County Highway Agency

About this bridge

Ingram Road over Tehama-Colusa Canal is a concrete slab carrying Ingram Road over Tehama-Colusa Canal in Tehama County, California. It was built in 1968, so it is 57 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 87 vehicles a day, roughly 3% of them trucks, projected to reach 208 by 2041. The structure is 83 ft (25.3 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesIngram Road
CrossesTehama-Colusa Canal
Location0.45 MI N Christian RD
RouteCounty Highway 0
CountyTehama County
StateCalifornia
Coordinates39.81886, -122.15962
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length83 ft (25.3 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic87 (2013)
Projected traffic208 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Ingram Road over Tehama-Colusa Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Ingram 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 Ingram Road over Tehama-Colusa Canal carry?

About 87 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is Ingram Road over Tehama-Colusa Canal?

The structure is 83 ft (25.3 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns Ingram Road over Tehama-Colusa Canal?

It is owned by the County Highway Agency.