US Bridges

Horseshoe Bar RD over Secret Ravine

Fair

Placer County, California · 0.3 MI South East I-80 · Structure no. 19C0162

Built
1929
96 years old, rebuilt 1935
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
37 ft
1 main span
Daily traffic
6,490
2008 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Horseshoe Bar RD over Secret Ravine is a concrete stringer/multi-beam or girder carrying Horseshoe Bar RD over Secret Ravine in Placer County, California. It was built in 1929 and reconstructed in 1935, so it is 96 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 6,490 vehicles a day, roughly 2% of them trucks, projected to reach 7,582 by 2042. The structure is 37 ft (11.3 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesHorseshoe Bar RD
CrossesSecret Ravine
Location0.3 MI South East I-80
RouteCity Street 0
CountyPlacer County
StateCalifornia
Coordinates38.81359, -121.1858
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating28.5 US tons
Inventory rating17.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span34 ft (10.4 m)
Deck width32 ft (9.7 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,490 (2008)
Projected traffic7,582 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Horseshoe Bar RD over Secret Ravine built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1935.

What condition is Horseshoe Bar RD over Secret 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 May 2024.

How much traffic does Horseshoe Bar RD over Secret Ravine carry?

About 6,490 vehicles per day (2008 count), of which roughly 2% are trucks.

How long is Horseshoe Bar RD over Secret Ravine?

The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.

Who owns Horseshoe Bar RD over Secret Ravine?

It is owned by the Town or Township Highway Agency.