US Bridges

Hughes RD over Sutter Bypass W Channel

Fair

Sutter County, California · 1.1 MI W of Schlag RD · Structure no. 18C0036

Built
1987
38 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
222 ft
6 main spans
Daily traffic
190
2015 count
Owner
County
County Highway Agency

About this bridge

Hughes RD over Sutter Bypass W Channel is a concrete continuous slab carrying Hughes RD over Sutter Bypass W Channel in Sutter County, California. It was built in 1987, so it is 38 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 190 vehicles a day, roughly 7% of them trucks, projected to reach 638 by 2042. The structure is 222 ft (67.7 m) long and 31 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

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CarriesHughes RD
CrossesSutter Bypass W Channel
Location1.1 MI W of Schlag RD
RouteCounty Highway 0
CountySutter County
StateCalifornia
Coordinates39.07216, -121.75936
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length222 ft (67.7 m)
Longest span37 ft (11.3 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2015)
Projected traffic638 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 Hughes RD over Sutter Bypass W Channel built?

It was built in 1987, making it 38 years old in 2025.

What condition is Hughes RD over Sutter Bypass W Channel in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Hughes RD over Sutter Bypass W Channel carry?

About 190 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Hughes RD over Sutter Bypass W Channel?

The structure is 222 ft (67.7 m) long with a longest span of 37 ft (11.3 m) and a deck 31 ft wide.

Who owns Hughes RD over Sutter Bypass W Channel?

It is owned by the County Highway Agency.