US Bridges

Moore RD over Auburn Ravine

FairPosted for load

Placer County, California · 0.25 MI W Fiddyment RD · Structure no. 19C0110

Built
1930
95 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
91 ft
2 main spans
Daily traffic
387
2012 count
Owner
County
County Highway Agency

About this bridge

Moore RD over Auburn Ravine is a steel stringer/multi-beam or girder carrying Moore RD over Auburn Ravine in Placer County, California. It was built in 1930, so it is 95 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 387 vehicles a day, roughly 2% of them trucks, projected to reach 749 by 2041. The structure is 91 ft (27.7 m) long and 23 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesMoore RD
CrossesAuburn Ravine
Location0.25 MI W Fiddyment RD
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates38.86809, -121.35678
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.2 US tons
Inventory rating13.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length91 ft (27.7 m)
Longest span44 ft (13.4 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic387 (2012)
Projected traffic749 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Moore RD over Auburn Ravine built?

It was built in 1930, making it 95 years old in 2025.

What condition is Moore RD over Auburn Ravine 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 June 2024.

How much traffic does Moore RD over Auburn Ravine carry?

About 387 vehicles per day (2012 count), of which roughly 2% are trucks.

How long is Moore RD over Auburn Ravine?

The structure is 91 ft (27.7 m) long with a longest span of 44 ft (13.4 m) and a deck 23 ft wide.

Who owns Moore RD over Auburn Ravine?

It is owned by the County Highway Agency.