US Bridges

County Road 99W over Bretona Creek

Fair

Yolo County, California · 0.44 MI SE of CR #91B · Structure no. 22C0140

Built
1946
79 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
26 ft
3 main spans
Daily traffic
1,460
2015 count
Owner
County
County 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 1946, so it is 79 years old, older 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 1,460 vehicles a day, roughly 15% of them trucks, projected to reach 1,738 by 2047. The structure is 26 ft (7.9 m) long and 44 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesCounty Road 99W
CrossesBretona Creek
Location0.44 MI SE of CR #91B
RouteCounty Highway 0
CountyYolo County
StateCalifornia
Coordinates38.83357, -121.91861
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span9 ft (2.6 m)
Deck width44 ft (13.3 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,460 (2015)
Projected traffic1,738 by 2047
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 1946, making it 79 years old in 2025.

What condition is County Road 99W over Bretona Creek 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 January 2025.

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

About 1,460 vehicles per day (2015 count), of which roughly 15% 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 9 ft (2.6 m) and a deck 44 ft wide.

Who owns County Road 99W over Bretona Creek?

It is owned by the County Highway Agency.