US Bridges

Nonpareil Ave over Tehama-Colusa Canal

Good

Colusa County, California · 0.5 MI E of Wildwood RD · Structure no. 15C0157

Built
1976
49 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
60
2015 count
Owner
County
County Highway Agency

About this bridge

Nonpareil Ave over Tehama-Colusa Canal is a prestressed concrete stringer/multi-beam or girder carrying Nonpareil Ave over Tehama-Colusa Canal in Colusa County, California. It was built in 1976, so it is 49 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60 vehicles a day, roughly 10% of them trucks, projected to reach 211 by 2046. The structure is 73 ft (22.3 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNonpareil Ave
CrossesTehama-Colusa Canal
Location0.5 MI E of Wildwood RD
RouteCounty Highway 0
Coordinates38.97666, -122.05117
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating53.6 US tons
Inventory rating34.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length73 ft (22.3 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 traffic60 (2015)
Projected traffic211 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Nonpareil Ave over Tehama-Colusa Canal built?

It was built in 1976, making it 49 years old in 2025.

What condition is Nonpareil Ave 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 Nonpareil Ave over Tehama-Colusa Canal carry?

About 60 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Nonpareil Ave over Tehama-Colusa Canal?

The structure is 73 ft (22.3 m) long with a longest span of 71 ft (21.6 m) and a deck 35 ft wide.

Who owns Nonpareil Ave over Tehama-Colusa Canal?

It is owned by the County Highway Agency.