US Bridges

Placer RD over Yankee Slough

Fair

Sutter County, California · 0.8 MI S/O Bear River RD · Structure no. 18C0094

Built
1950
75 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
30 ft
3 main spans
Daily traffic
90
2015 count
Owner
County
County Highway Agency

About this bridge

Placer RD over Yankee Slough is a concrete continuous slab carrying Placer RD over Yankee Slough in Sutter County, California. It was built in 1950, so it is 75 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 90 vehicles a day, projected to reach 83 by 2041. The structure is 30 ft (9.1 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesPlacer RD
CrossesYankee Slough
Location0.8 MI S/O Bear River RD
RouteCounty Highway 0
CountySutter County
StateCalifornia
Coordinates38.96454, -121.41461
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width29 ft (8.8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2015)
Projected traffic83 by 2041
Trucks0%
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 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 Placer RD over Yankee Slough built?

It was built in 1950, making it 75 years old in 2025.

What condition is Placer RD over Yankee 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 February 2023.

How much traffic does Placer RD over Yankee Slough carry?

About 90 vehicles per day (2015 count).

How long is Placer RD over Yankee Slough?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m) and a deck 29 ft wide.

Who owns Placer RD over Yankee Slough?

It is owned by the County Highway Agency.