US Bridges

C.R. # 86A over Cottonwood Slough

Good

Yolo County, California · 0.22 MI North of CR # 25 · Structure no. 22C0184

Built
2015
10 years old
Condition
Good
inspected October 2021
Type
Slab
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
146
2005 count
Owner
County
County Highway Agency

About this bridge

C.R. # 86A over Cottonwood Slough is a prestressed concrete slab carrying C.R. # 86A over Cottonwood Slough in Yolo County, California. It was built in 2015, so it is 10 years old, younger 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 146 vehicles a day, roughly 4% of them trucks, projected to reach 281 by 2043. The structure is 67 ft (20.4 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesC.R. # 86A
CrossesCottonwood Slough
Location0.22 MI North of CR # 25
RouteCounty Highway 0
CountyYolo County
StateCalifornia
Coordinates38.65256, -122.01753
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length67 ft (20.4 m)
Longest span67 ft (20.4 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic146 (2005)
Projected traffic281 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 C.R. # 86A over Cottonwood Slough built?

It was built in 2015, making it 10 years old in 2025.

What condition is C.R. # 86A over Cottonwood 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 2021.

How much traffic does C.R. # 86A over Cottonwood Slough carry?

About 146 vehicles per day (2005 count), of which roughly 4% are trucks.

How long is C.R. # 86A over Cottonwood Slough?

The structure is 67 ft (20.4 m) long with a longest span of 67 ft (20.4 m) and a deck 29 ft wide.

Who owns C.R. # 86A over Cottonwood Slough?

It is owned by the County Highway Agency.