US Bridges

Lozanos RD over Auburn Ravine

Good

Placer County, California · Near Chili Hill RD · Structure no. 19C0235

Built
2007
18 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
1,561
2006 count
Owner
County
County Highway Agency

About this bridge

Lozanos RD over Auburn Ravine is a prestressed concrete box beam or girders - multiple carrying Lozanos RD over Auburn Ravine in Placer 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 1,561 vehicles a day, roughly 4% of them trucks, projected to reach 1,970 by 2045. The structure is 92 ft (28 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLozanos RD
CrossesAuburn Ravine
LocationNear Chili Hill RD
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates38.89079, -121.12451
Functional classRural Minor Collector

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 inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length92 ft (28 m)
Longest span92 ft (28 m)
Deck width38 ft (11.6 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,561 (2006)
Projected traffic1,970 by 2045
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Lozanos RD over Auburn Ravine built?

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

What condition is Lozanos RD over Auburn Ravine 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 2023.

How much traffic does Lozanos RD over Auburn Ravine carry?

About 1,561 vehicles per day (2006 count), of which roughly 4% are trucks.

How long is Lozanos RD over Auburn Ravine?

The structure is 92 ft (28 m) long with a longest span of 92 ft (28 m) and a deck 38 ft wide.

Who owns Lozanos RD over Auburn Ravine?

It is owned by the County Highway Agency.