US Bridges

Powerhouse RD over South Canal

Fair

Placer County, California · 0.45 MI W Auburn-Folsom R · Structure no. 19C0134

Built
1940
85 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
25 ft
1 main span
Daily traffic
262
2010 count
Owner
County
County Highway Agency

About this bridge

Powerhouse RD over South Canal is a concrete tee beam carrying Powerhouse RD over South Canal in Placer County, California. It was built in 1940, so it is 85 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 6 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 262 vehicles a day, roughly 1% of them trucks, projected to reach 373 by 2042. The structure is 25 ft (7.6 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesPowerhouse RD
CrossesSouth Canal
Location0.45 MI W Auburn-Folsom R
RouteCounty Highway 0
Coordinates38.85467, -121.11593
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.7 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic262 (2010)
Projected traffic373 by 2042
Trucks1%
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 Powerhouse RD over South Canal built?

It was built in 1940, making it 85 years old in 2025.

What condition is Powerhouse RD over South Canal 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 November 2024.

How much traffic does Powerhouse RD over South Canal carry?

About 262 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Powerhouse RD over South Canal?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 23 ft wide.

Who owns Powerhouse RD over South Canal?

It is owned by the County Highway Agency.