US Bridges

Wilbur Springs RD over Bear Creek

Good

Colusa County, California · JCT With Bear Valley RD · Structure no. 15C0199

Built
2007
18 years old
Condition
Good
inspected October 2024
Type
Truss - Thru
Steel
Length
104 ft
1 main span
Daily traffic
63
2014 count
Owner
County
County Highway Agency

About this bridge

Wilbur Springs RD over Bear Creek is a steel truss - thru carrying Wilbur Springs RD over Bear Creek in Colusa County, California. It was built in 2007, so it is 18 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 63 vehicles a day, roughly 1% of them trucks, projected to reach 114 by 2042. The structure is 104 ft (31.7 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesWilbur Springs RD
CrossesBear Creek
LocationJCT With Bear Valley RD
RouteCounty Highway 0
Coordinates39.04011, -122.40861
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating50.7 US tons
Inventory rating30.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span100 ft (30.5 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63 (2014)
Projected traffic114 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Wilbur Springs RD over Bear Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Wilbur Springs RD over Bear 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 2024.

How much traffic does Wilbur Springs RD over Bear Creek carry?

About 63 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Wilbur Springs RD over Bear Creek?

The structure is 104 ft (31.7 m) long with a longest span of 100 ft (30.5 m) and a deck 20 ft wide.

Who owns Wilbur Springs RD over Bear Creek?

It is owned by the County Highway Agency.