US Bridges

Rock Creek RD over Rock Creek

Fair

El Dorado County, California · 5.5 MI NE of S.R. 193 · Structure no. 25C0099

Built
1936
89 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
176 ft
5 main spans
Daily traffic
224
2012 count
Owner
County
County Highway Agency

About this bridge

Rock Creek RD over Rock Creek is a concrete tee beam carrying Rock Creek RD over Rock Creek in El Dorado County, California. It was built in 1936, so it is 89 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 224 vehicles a day, roughly 10% of them trucks, projected to reach 666 by 2046. The structure is 176 ft (53.6 m) long and 23 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesRock Creek RD
CrossesRock Creek
Location5.5 MI NE of S.R. 193
RouteCounty Highway 0
Coordinates38.79551, -120.77644
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28.5 US tons
Inventory rating17.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length176 ft (53.6 m)
Longest span35 ft (10.7 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic224 (2012)
Projected traffic666 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rock Creek RD over Rock Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is Rock Creek RD over Rock Creek 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 Rock Creek RD over Rock Creek carry?

About 224 vehicles per day (2012 count), of which roughly 10% are trucks.

How long is Rock Creek RD over Rock Creek?

The structure is 176 ft (53.6 m) long with a longest span of 35 ft (10.7 m) and a deck 23 ft wide.

Who owns Rock Creek RD over Rock Creek?

It is owned by the County Highway Agency.