US Bridges

Dog Bar Road over Bear River

FairPosted for load

Nevada County, California · At Nevada-Placer CO Line · Structure no. 17C0031

Built
1935
90 years old, rebuilt 2000
Condition
Fair
inspected August 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
195 ft
2 main spans
Daily traffic
1,313
2014 count
Owner
County
County Highway Agency

About this bridge

Dog Bar Road over Bear River is a steel continuous girder and floorbeam system carrying Dog Bar Road over Bear River in Nevada County, California. It was built in 1935 and reconstructed in 2000, so it is 90 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,313 vehicles a day, roughly 2% of them trucks, projected to reach 1,603 by 2043. The structure is 195 ft (59.4 m) long and 13 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesDog Bar Road
CrossesBear River
LocationAt Nevada-Placer CO Line
RouteCounty Highway 0
CountyNevada County
StateCalifornia
Coordinates39.06284, -121.00324
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating34.3 US tons
Inventory rating20.4 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckCorrugated steel
Main spans2 (+2 approach)
Design loadH 15
Structure length195 ft (59.4 m)
Longest span80 ft (24.4 m)
Deck width13 ft (4 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,313 (2014)
Projected traffic1,603 by 2043
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Dog Bar Road over Bear River built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 2000.

What condition is Dog Bar Road over Bear River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Dog Bar Road over Bear River carry?

About 1,313 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Dog Bar Road over Bear River?

The structure is 195 ft (59.4 m) long with a longest span of 80 ft (24.4 m) and a deck 13 ft wide.

Who owns Dog Bar Road over Bear River?

It is owned by the County Highway Agency.