US Bridges

King RD over Tehama-Colusa Canal

Good

Colusa County, California · 1.7 MI E of S.R. 20 · Structure no. 15C0145

Built
1978
47 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
56
2015 count
Owner
County
County Highway Agency

About this bridge

King RD over Tehama-Colusa Canal is a prestressed concrete stringer/multi-beam or girder carrying King RD over Tehama-Colusa Canal in Colusa County, California. It was built in 1978, so it is 47 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 56 vehicles a day, roughly 5% of them trucks, projected to reach 110 by 2044. The structure is 77 ft (23.5 m) long and 35 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesKing RD
CrossesTehama-Colusa Canal
Location1.7 MI E of S.R. 20
RouteCounty Highway 0
CountyColusa County
StateCalifornia
Coordinates39.14778, -122.28991
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
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 rating47.2 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span76 ft (23.2 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56 (2015)
Projected traffic110 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was King RD over Tehama-Colusa Canal built?

It was built in 1978, making it 47 years old in 2025.

What condition is King RD 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 December 2024.

How much traffic does King RD over Tehama-Colusa Canal carry?

About 56 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is King RD over Tehama-Colusa Canal?

The structure is 77 ft (23.5 m) long with a longest span of 76 ft (23.2 m) and a deck 35 ft wide.

Who owns King RD over Tehama-Colusa Canal?

It is owned by the County Highway Agency.