US Bridges

State Route 16 over Heather Creek

Good

Yolo County, California · 03-YOL-016-11.54 · Structure no. 22 0023

Built
1962
63 years old
Condition
Good
inspected March 2021
Type
Slab
Concrete Continuous
Length
73 ft
3 main spans
Daily traffic
1,100
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 16 over Heather Creek is a concrete continuous slab carrying State Route 16 over Heather Creek in Yolo County, California. It was built in 1962, so it is 63 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 1,100 vehicles a day, roughly 7% of them trucks, projected to reach 1,250 by 2040. The structure is 73 ft (22.1 m) long and 34 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

Location

Open in Google Maps
CarriesState Route 16
CrossesHeather Creek
Location03-YOL-016-11.54
RouteState Highway 16
CountyYolo County
StateCalifornia
Coordinates38.83542, -122.19794
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating82.5 US tons
Inventory rating49.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length73 ft (22.1 m)
Longest span28 ft (8.5 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2017)
Projected traffic1,250 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.9 mi (98 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 Heather Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is State Route 16 over Heather Creek 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 2021.

How much traffic does State Route 16 over Heather Creek carry?

About 1,100 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is State Route 16 over Heather Creek?

The structure is 73 ft (22.1 m) long with a longest span of 28 ft (8.5 m) and a deck 34 ft wide.

Who owns State Route 16 over Heather Creek?

It is owned by the State Highway Agency.