US Bridges

Forty Mile RD over Kimball Creek

Good

Yuba County, California · 0.8 MI S of S.R. 65 · Structure no. 16C0101

Built
2000
25 years old
Condition
Good
inspected March 2021
Type
Culvert
Concrete Continuous
Length
46 ft
3 main spans
Daily traffic
2,200
2007 count
Owner
County
County Highway Agency

About this bridge

Forty Mile RD over Kimball Creek is a concrete continuous culvert carrying Forty Mile RD over Kimball Creek in Yuba County, California. It was built in 2000, so it is 25 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 2,200 vehicles a day, roughly 10% of them trucks, projected to reach 2,808 by 2043. The structure is 46 ft (14 m) long. If it were closed, the detour would be 8.7 mi (14 km).

CarriesForty Mile RD
CrossesKimball Creek
Location0.8 MI S of S.R. 65
RouteCounty Highway 0
Coordinates39.05443, -121.51499
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length46 ft (14 m)
Longest span15 ft (4.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2007)
Projected traffic2,808 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Forty Mile RD over Kimball Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Forty Mile RD over Kimball 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 Forty Mile RD over Kimball Creek carry?

About 2,200 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is Forty Mile RD over Kimball Creek?

The structure is 46 ft (14 m) long with a longest span of 15 ft (4.7 m).

Who owns Forty Mile RD over Kimball Creek?

It is owned by the County Highway Agency.