US Bridges

Sanders RD over Sutter CO Extension Cnl

Poor

Sutter County, California · 1.2 MI W of Broadway · Structure no. 18C0107

Built
1940
85 years old
Condition
Poor
inspected February 2025
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
177
2015 count
Owner
County
County Highway Agency

About this bridge

Sanders RD over Sutter CO Extension Cnl is a concrete continuous culvert carrying Sanders RD over Sutter CO Extension Cnl in Sutter County, California. It was built in 1940, so it is 85 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 177 vehicles a day, roughly 10% of them trucks, projected to reach 446 by 2043. The structure is 29 ft (8.8 m) long and 23 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSanders RD
CrossesSutter CO Extension Cnl
Location1.2 MI W of Broadway
RouteCounty Highway 0
CountySutter County
StateCalifornia
Coordinates39.20278, -121.70111
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span10 ft (3.2 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic177 (2015)
Projected traffic446 by 2043
Trucks10%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$243,000 (2017 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sanders RD over Sutter CO Extension Cnl built?

It was built in 1940, making it 85 years old in 2025.

What condition is Sanders RD over Sutter CO Extension Cnl in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2025.

How much traffic does Sanders RD over Sutter CO Extension Cnl carry?

About 177 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Sanders RD over Sutter CO Extension Cnl?

The structure is 29 ft (8.8 m) long with a longest span of 10 ft (3.2 m) and a deck 23 ft wide.

Who owns Sanders RD over Sutter CO Extension Cnl?

It is owned by the County Highway Agency.