US Bridges

State Route 162 over Tehama-Colusa Canal

Fair

Glenn County, California · 03-GLE-162-60.76 · Structure no. 11 0096

Built
1973
52 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
800
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 162 over Tehama-Colusa Canal is a prestressed concrete stringer/multi-beam or girder carrying State Route 162 over Tehama-Colusa Canal in Glenn County, California. It was built in 1973, so it is 52 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 800 vehicles a day, roughly 18% of them trucks, projected to reach 2,047 by 2045. The structure is 70 ft (21.4 m) long and 34 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesState Route 162
CrossesTehama-Colusa Canal
Location03-GLE-162-60.76
RouteState Highway 162
Coordinates39.52409, -122.30389
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating35.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length70 ft (21.4 m)
Longest span68 ft (20.8 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2015)
Projected traffic2,047 by 2045
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 162 over Tehama-Colusa Canal built?

It was built in 1973, making it 52 years old in 2025.

What condition is State Route 162 over Tehama-Colusa Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does State Route 162 over Tehama-Colusa Canal carry?

About 800 vehicles per day (2015 count), of which roughly 18% are trucks.

How long is State Route 162 over Tehama-Colusa Canal?

The structure is 70 ft (21.4 m) long with a longest span of 68 ft (20.8 m) and a deck 34 ft wide.

Who owns State Route 162 over Tehama-Colusa Canal?

It is owned by the State Highway Agency.