US Bridges

Riego RD over Natomas Canal

Good

Sutter County, California · Natomas Road · Structure no. 18C0061

Built
1982
43 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
8,842
2015 count
Owner
County
County Highway Agency

About this bridge

Riego RD over Natomas Canal is a concrete continuous slab carrying Riego RD over Natomas Canal in Sutter County, California. It was built in 1982, so it is 43 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 8,842 vehicles a day, roughly 4% of them trucks, projected to reach 4,420 by 2042. The structure is 127 ft (38.7 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesRiego RD
CrossesNatomas Canal
LocationNatomas Road
RouteCounty Highway 0
Coordinates38.7512, -121.49427
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.2 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length127 ft (38.7 m)
Longest span42 ft (12.8 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,842 (2015)
Projected traffic4,420 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Riego RD over Natomas Canal built?

It was built in 1982, making it 43 years old in 2025.

What condition is Riego RD over Natomas 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 September 2024.

How much traffic does Riego RD over Natomas Canal carry?

About 8,842 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is Riego RD over Natomas Canal?

The structure is 127 ft (38.7 m) long with a longest span of 42 ft (12.8 m) and a deck 33 ft wide.

Who owns Riego RD over Natomas Canal?

It is owned by the County Highway Agency.