US Bridges

Brewer RD over Auburn Ravine

Fair

Placer County, California · 7.6 MI N Base Line RD · Structure no. 19C0137

Built
1941
84 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
112 ft
2 main spans
Daily traffic
110
2007 count
Owner
County
County Highway Agency

About this bridge

Brewer RD over Auburn Ravine is a steel stringer/multi-beam or girder carrying Brewer RD over Auburn Ravine in Placer County, California. It was built in 1941, so it is 84 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.

It carries about 110 vehicles a day, roughly 8% of them trucks, projected to reach 374 by 2041. The structure is 112 ft (34.1 m) long and 22 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesBrewer RD
CrossesAuburn Ravine
Location7.6 MI N Base Line RD
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates38.86093, -121.4515
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28.2 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length112 ft (34.1 m)
Longest span55 ft (16.8 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2007)
Projected traffic374 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Brewer RD over Auburn Ravine built?

It was built in 1941, making it 84 years old in 2025.

What condition is Brewer 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 March 2023.

How much traffic does Brewer RD over Auburn Ravine carry?

About 110 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is Brewer RD over Auburn Ravine?

The structure is 112 ft (34.1 m) long with a longest span of 55 ft (16.8 m) and a deck 22 ft wide.

Who owns Brewer RD over Auburn Ravine?

It is owned by the County Highway Agency.