US Bridges

Coles RD over Westside Canal

Good

Sutter County, California · 0.5 MI E Cranmore RD · Structure no. 18C0047

Built
1978
47 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
88 ft
3 main spans
Daily traffic
44
2015 count
Owner
County
County Highway Agency

About this bridge

Coles RD over Westside Canal is a concrete continuous slab carrying Coles RD over Westside Canal in Sutter 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 44 vehicles a day, projected to reach 99 by 2041. The structure is 88 ft (26.8 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesColes RD
CrossesWestside Canal
Location0.5 MI E Cranmore RD
RouteCounty Highway 0
CountySutter County
StateCalifornia
Coordinates39.00081, -121.79201
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length88 ft (26.8 m)
Longest span34 ft (10.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2015)
Projected traffic99 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Coles RD over Westside Canal built?

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

What condition is Coles RD over Westside 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 February 2023.

How much traffic does Coles RD over Westside Canal carry?

About 44 vehicles per day (2015 count).

How long is Coles RD over Westside Canal?

The structure is 88 ft (26.8 m) long with a longest span of 34 ft (10.3 m) and a deck 30 ft wide.

Who owns Coles RD over Westside Canal?

It is owned by the County Highway Agency.