US Bridges

Cone Grove Road over New Creek

Good

Tehama County, California · 0.8 MI E of SH99 · Structure no. 08C0375

Built
2002
23 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
135 ft
2 main spans
Daily traffic
300
2009 count
Owner
County
County Highway Agency

About this bridge

Cone Grove Road over New Creek is a concrete continuous box beam or girders - multiple carrying Cone Grove Road over New Creek in Tehama County, California. It was built in 2002, so it is 23 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 300 vehicles a day, roughly 6% of them trucks, projected to reach 404 by 2042. The structure is 135 ft (41 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCone Grove Road
CrossesNew Creek
Location0.8 MI E of SH99
RouteCounty Highway 0
Coordinates40.16992, -122.14823
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 protection8 Very GoodNo problems noted.
Last inspectionApril 2024
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 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

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length135 ft (41 m)
Longest span66 ft (20 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2009)
Projected traffic404 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Cone Grove Road over New Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Cone Grove Road over New 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 April 2024.

How much traffic does Cone Grove Road over New Creek carry?

About 300 vehicles per day (2009 count), of which roughly 6% are trucks.

How long is Cone Grove Road over New Creek?

The structure is 135 ft (41 m) long with a longest span of 66 ft (20 m) and a deck 32 ft wide.

Who owns Cone Grove Road over New Creek?

It is owned by the County Highway Agency.