US Bridges

SR 16 (cnty RD 18) over Interstate 5

Fair

Yolo County, California · 03-YOL-016-R43.42 · Structure no. 22 0151

Built
1973
52 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
218 ft
2 main spans
Daily traffic
4,800
2017 count
Owner
State
State Highway Agency

About this bridge

SR 16 (cnty RD 18) over Interstate 5 is a concrete continuous box beam or girders - multiple carrying SR 16 (cnty RD 18) over Interstate 5 in Yolo County, California. It was built in 1973, so it is 52 years old, younger 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 4,800 vehicles a day, roughly 13% of them trucks, projected to reach 10,100 by 2041. The structure is 218 ft (66.4 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSR 16 (cnty RD 18)
CrossesInterstate 5
Location03-YOL-016-R43.42
RouteState Highway 16
CountyYolo County
StateCalifornia
Coordinates38.71837, -121.80057
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating45 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length218 ft (66.4 m)
Longest span113 ft (34.3 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2017)
Projected traffic10,100 by 2041
Trucks13%
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 SR 16 (cnty RD 18) over Interstate 5 built?

It was built in 1973, making it 52 years old in 2025.

What condition is SR 16 (cnty RD 18) over Interstate 5 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 March 2024.

How much traffic does SR 16 (cnty RD 18) over Interstate 5 carry?

About 4,800 vehicles per day (2017 count), of which roughly 13% are trucks.

How long is SR 16 (cnty RD 18) over Interstate 5?

The structure is 218 ft (66.4 m) long with a longest span of 113 ft (34.3 m) and a deck 47 ft wide.

Who owns SR 16 (cnty RD 18) over Interstate 5?

It is owned by the State Highway Agency.