US Bridges

Dog Bar Road over South Wolf Creek

Good

Nevada County, California · 0.02 MI N of Mt Olive RD · Structure no. 17C0034

Built
1998
27 years old
Condition
Good
inspected March 2021
Type
Culvert
Concrete Continuous
Length
49 ft
4 main spans
Daily traffic
1,430
2017 count
Owner
County
County Highway Agency

About this bridge

Dog Bar Road over South Wolf Creek is a concrete continuous culvert carrying Dog Bar Road over South Wolf Creek in Nevada County, California. It was built in 1998, so it is 27 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 1,430 vehicles a day, roughly 2% of them trucks, projected to reach 790 by 2043. The structure is 49 ft (15 m) long and 38 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesDog Bar Road
CrossesSouth Wolf Creek
Location0.02 MI N of Mt Olive RD
RouteCounty Highway 0
Coordinates39.13491, -121.01869
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 protection9 ExcellentNo problems noted.
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum 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 spans4
Design loadUnknown
Structure length49 ft (15 m)
Longest span10 ft (3.1 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,430 (2017)
Projected traffic790 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Dog Bar Road over South Wolf Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Dog Bar Road over South Wolf 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 Dog Bar Road over South Wolf Creek carry?

About 1,430 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Dog Bar Road over South Wolf Creek?

The structure is 49 ft (15 m) long with a longest span of 10 ft (3.1 m) and a deck 38 ft wide.

Who owns Dog Bar Road over South Wolf Creek?

It is owned by the County Highway Agency.