US Bridges

State Route 16 over Capay Canal

Good

Yolo County, California · 03-YOL-016-25.15 · Structure no. 22 0027

Built
1991
34 years old
Condition
Good
inspected March 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
135 ft
2 main spans
Daily traffic
11,200
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 16 over Capay Canal is a prestressed concrete continuous box beam or girders - multiple carrying State Route 16 over Capay Canal in Yolo County, California. It was built in 1991, so it is 34 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 11,200 vehicles a day, roughly 17% of them trucks, projected to reach 17,708 by 2047. The structure is 135 ft (41.1 m) long and 44 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

CarriesState Route 16
CrossesCapay Canal
Location03-YOL-016-25.15
RouteState Highway 16
Coordinates38.70698, -122.05726
Functional classRural Minor Arterial

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 protection9 ExcellentNo problems noted.
Last inspectionMarch 2025
Inspection intervalevery 24 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 rating50 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length135 ft (41.1 m)
Longest span72 ft (21.9 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,200 (2017)
Projected traffic17,708 by 2047
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 16 over Capay Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is State Route 16 over Capay Canal 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 March 2025.

How much traffic does State Route 16 over Capay Canal carry?

About 11,200 vehicles per day (2017 count), of which roughly 17% are trucks.

How long is State Route 16 over Capay Canal?

The structure is 135 ft (41.1 m) long with a longest span of 72 ft (21.9 m) and a deck 44 ft wide.

Who owns State Route 16 over Capay Canal?

It is owned by the State Highway Agency.