US Bridges

County Road 17 over Interstate 5

Poor

Yolo County, California · 03-YOL-005-R12.34 · Structure no. 22 0159

Built
1970
55 years old
Condition
Poor
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
240 ft
2 main spans
Daily traffic
5,000
2016 count
Owner
State
State Highway Agency

About this bridge

County Road 17 over Interstate 5 is a concrete continuous box beam or girders - multiple carrying County Road 17 over Interstate 5 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 5,000 vehicles a day, roughly 10% of them trucks, projected to reach 8,161 by 2042. The structure is 240 ft (73.2 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Road 17
CrossesInterstate 5
Location03-YOL-005-R12.34
RouteCounty Highway 0
CountyYolo County
StateCalifornia
Coordinates38.73539, -121.81886
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.9 US tons
Inventory rating50.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span122 ft (37.1 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2016)
Projected traffic8,161 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 17 over Interstate 5 built?

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

What condition is County Road 17 over Interstate 5 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does County Road 17 over Interstate 5 carry?

About 5,000 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is County Road 17 over Interstate 5?

The structure is 240 ft (73.2 m) long with a longest span of 122 ft (37.1 m) and a deck 47 ft wide.

Who owns County Road 17 over Interstate 5?

It is owned by the State Highway Agency.