US Bridges

County Road 99W over Bretona Creek

Good

Yolo County, California · 03-YOL-005-R20.75 · Structure no. 22 0095

Built
1920
105 years old, rebuilt 1930
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
26 ft
3 main spans
Daily traffic
22,400
2014 count
Owner
State
State Highway Agency

About this bridge

County Road 99W over Bretona Creek is a concrete continuous culvert carrying County Road 99W over Bretona Creek in Yolo County, California. It was built in 1920 and reconstructed in 1930, so it is 105 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 22,400 vehicles a day, roughly 32% of them trucks, projected to reach 35,727 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCounty Road 99W
CrossesBretona Creek
Location03-YOL-005-R20.75
RouteInterstate 5
Coordinates38.82973, -121.91491
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans3
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,400 (2014)
Projected traffic35,727 by 2042
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 County Road 99W over Bretona Creek built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1930.

What condition is County Road 99W over Bretona 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 2024.

How much traffic does County Road 99W over Bretona Creek carry?

About 22,400 vehicles per day (2014 count), of which roughly 32% are trucks.

How long is County Road 99W over Bretona Creek?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).

Who owns County Road 99W over Bretona Creek?

It is owned by the State Highway Agency.