US Bridges

Sutter Slu Br RD over Sutter Slough

Fair

Sacramento County, California · Sac Riv Across Courtland · Structure no. 24C0011

Built
1939
86 years old, rebuilt 1970
Condition
Fair
inspected April 2024
Type
Movable - Swing
Steel
Length
397 ft
2 main spans
Daily traffic
1,913
2008 count
Owner
County
County Highway Agency

About this bridge

Sutter Slu Br RD over Sutter Slough is a steel movable - swing carrying Sutter Slu Br RD over Sutter Slough in Sacramento County, California. It was built in 1939 and reconstructed in 1970, so it is 86 years old, older 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 1,913 vehicles a day, roughly 5% of them trucks, projected to reach 3,303 by 2042. The structure is 397 ft (121 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesSutter Slu Br RD
CrossesSutter Slough
LocationSac Riv Across Courtland
RouteCounty Highway 0
CountySacramento County
StateCalifornia
Coordinates38.32724, -121.57683
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckCorrugated steel
Main spans2 (+9 approach)
Design loadH 15
Structure length397 ft (121 m)
Longest span94 ft (28.5 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck14 ft (4.4 m)

Traffic and service

Average daily traffic1,913 (2008)
Projected traffic3,303 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sutter Slu Br RD over Sutter Slough built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1970.

What condition is Sutter Slu Br RD over Sutter Slough 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 April 2024.

How much traffic does Sutter Slu Br RD over Sutter Slough carry?

About 1,913 vehicles per day (2008 count), of which roughly 5% are trucks.

How long is Sutter Slu Br RD over Sutter Slough?

The structure is 397 ft (121 m) long with a longest span of 94 ft (28.5 m) and a deck 26 ft wide.

Who owns Sutter Slu Br RD over Sutter Slough?

It is owned by the County Highway Agency.