US Bridges

C.R. #90 over Dry Slough

Fair

Yolo County, California · 0.77 MI N of I 505 Ramp · Structure no. 22C0119

Built
1970
55 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
40
2011 count
Owner
County
County Highway Agency

About this bridge

C.R. #90 over Dry Slough is a concrete continuous culvert carrying C.R. #90 over Dry Slough in Yolo County, California. It was built in 1970, so it is 55 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 6 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 40 vehicles a day, projected to reach 55 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesC.R. #90
CrossesDry Slough
Location0.77 MI N of I 505 Ramp
RouteCounty Highway 0
Coordinates38.54286, -121.9533
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2011)
Projected traffic55 by 2043
Trucks—
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 C.R. #90 over Dry Slough built?

It was built in 1970, making it 55 years old in 2025.

What condition is C.R. #90 over Dry 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 October 2023.

How much traffic does C.R. #90 over Dry Slough carry?

About 40 vehicles per day (2011 count).

How long is C.R. #90 over Dry Slough?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns C.R. #90 over Dry Slough?

It is owned by the County Highway Agency.