US Bridges

Evans Road over Cortina Creek

Good

Colusa County, California · 1.6 MI South Meyers RD · Structure no. 15C0202

Built
2012
13 years old
Condition
Good
inspected October 2022
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
250
2017 count
Owner
County
County Highway Agency

About this bridge

Evans Road over Cortina Creek is a concrete continuous slab carrying Evans Road over Cortina Creek in Colusa County, California. It was built in 2012, so it is 13 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 250 vehicles a day, roughly 10% of them trucks, projected to reach 500 by 2039. The structure is 122 ft (37.3 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesEvans Road
CrossesCortina Creek
Location1.6 MI South Meyers RD
RouteCounty Highway 0
Coordinates39.07753, -122.17031
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 inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length122 ft (37.3 m)
Longest span40 ft (12.2 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2017)
Projected traffic500 by 2039
Trucks10%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Evans Road over Cortina Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Evans Road over Cortina Creek 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 October 2022.

How much traffic does Evans Road over Cortina Creek carry?

About 250 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Evans Road over Cortina Creek?

The structure is 122 ft (37.3 m) long with a longest span of 40 ft (12.2 m) and a deck 32 ft wide.

Who owns Evans Road over Cortina Creek?

It is owned by the County Highway Agency.