US Bridges

County Road 85 over Goodnow Slough

Good

Yolo County, California · At Intersection Road 15B · Structure no. 22C0082

Built
1925
100 years old
Condition
Good
inspected January 2025
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
461
2013 count
Owner
County
County Highway Agency

About this bridge

County Road 85 over Goodnow Slough is a concrete slab carrying County Road 85 over Goodnow Slough in Yolo County, California. It was built in 1925, so it is 100 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 461 vehicles a day, roughly 10% of them trucks, projected to reach 625 by 2047. The structure is 22 ft (6.7 m) long and 22 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCounty Road 85
CrossesGoodnow Slough
LocationAt Intersection Road 15B
RouteCounty Highway 0
CountyYolo County
StateCalifornia
Coordinates38.75925, -122.04417
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width22 ft (6.7 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic461 (2013)
Projected traffic625 by 2047
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 85 over Goodnow Slough built?

It was built in 1925, making it 100 years old in 2025.

What condition is County Road 85 over Goodnow 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 January 2025.

How much traffic does County Road 85 over Goodnow Slough carry?

About 461 vehicles per day (2013 count), of which roughly 10% are trucks.

How long is County Road 85 over Goodnow Slough?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 22 ft wide.

Who owns County Road 85 over Goodnow Slough?

It is owned by the County Highway Agency.