US Bridges

County Road 93A over Chickahominy Slough

Good

Yolo County, California · South of C.R. #31 · Structure no. 22C0045

Built
1968
57 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
98 ft
3 main spans
Daily traffic
4,248
2009 count
Owner
County
County Highway Agency

About this bridge

County Road 93A over Chickahominy Slough is a concrete continuous slab carrying County Road 93A over Chickahominy Slough in Yolo County, California. It was built in 1968, so it is 57 years old, older 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 4,248 vehicles a day, roughly 4% of them trucks, projected to reach 2,772 by 2043. The structure is 98 ft (29.9 m) long and 37 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 93A
CrossesChickahominy Slough
LocationSouth of C.R. #31
RouteCounty Highway 0
CountyYolo County
StateCalifornia
Coordinates38.56089, -121.89877
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.4 US tons
Inventory rating24.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length98 ft (29.9 m)
Longest span32 ft (9.8 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,248 (2009)
Projected traffic2,772 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 County Road 93A over Chickahominy Slough built?

It was built in 1968, making it 57 years old in 2025.

What condition is County Road 93A over Chickahominy Slough 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 October 2023.

How much traffic does County Road 93A over Chickahominy Slough carry?

About 4,248 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is County Road 93A over Chickahominy Slough?

The structure is 98 ft (29.9 m) long with a longest span of 32 ft (9.8 m) and a deck 37 ft wide.

Who owns County Road 93A over Chickahominy Slough?

It is owned by the County Highway Agency.