US Bridges

Wildwood Road over Petroleum Creek

Good

Colusa County, California · 0.3 MI N Yolo CO Line · Structure no. 15C0081

Built
1980
45 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
539
2014 count
Owner
County
County Highway Agency

About this bridge

Wildwood Road over Petroleum Creek is a concrete slab carrying Wildwood Road over Petroleum Creek in Colusa County, California. It was built in 1980, so it is 45 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 539 vehicles a day, roughly 10% of them trucks, projected to reach 1,214 by 2042. The structure is 33 ft (10.2 m) long and 33 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesWildwood Road
CrossesPetroleum Creek
Location0.3 MI N Yolo CO Line
RouteCounty Highway 0
CountyColusa County
StateCalifornia
Coordinates38.92951, -122.06102
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating109.7 US tons
Inventory rating66 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length33 ft (10.2 m)
Longest span32 ft (9.8 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic539 (2014)
Projected traffic1,214 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Wildwood Road over Petroleum Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Wildwood Road over Petroleum 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 October 2023.

How much traffic does Wildwood Road over Petroleum Creek carry?

About 539 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Wildwood Road over Petroleum Creek?

The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.

Who owns Wildwood Road over Petroleum Creek?

It is owned by the County Highway Agency.