US Bridges

Road F over Tehama-Colusa Canal

Good

Glenn County, California · 0.3 MI S/O Road 25 · Structure no. 11C0110

Built
1970
55 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
65
2006 count
Owner
County
County Highway Agency

About this bridge

Road F over Tehama-Colusa Canal is a prestressed concrete stringer/multi-beam or girder carrying Road F over Tehama-Colusa Canal in Glenn County, California. It was built in 1970, so it is 55 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 65 vehicles a day, projected to reach 71 by 2043. The structure is 75 ft (22.9 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesRoad F
CrossesTehama-Colusa Canal
Location0.3 MI S/O Road 25
RouteCounty Highway 0
Coordinates39.69023, -122.234
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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating29.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length75 ft (22.9 m)
Longest span71 ft (21.6 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2006)
Projected traffic71 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road F over Tehama-Colusa Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is Road F 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 January 2025.

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

About 65 vehicles per day (2006 count).

How long is Road F over Tehama-Colusa Canal?

The structure is 75 ft (22.9 m) long with a longest span of 71 ft (21.6 m) and a deck 35 ft wide.

Who owns Road F over Tehama-Colusa Canal?

It is owned by the County Highway Agency.