US Bridges

Salmon Falls RD over South Fk American River

Fair

El Dorado County, California · 4.5 MI S Pilot Hill · Structure no. 25C0037

Built
1953
72 years old
Condition
Fair
inspected July 2024
Type
Truss - Thru
Steel
Length
510 ft
1 main span
Daily traffic
1,900
2019 count
Owner
County
County Highway Agency

About this bridge

Salmon Falls RD over South Fk American River is a steel truss - thru carrying Salmon Falls RD over South Fk American River in El Dorado County, California. It was built in 1953, so it is 72 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 1,900 vehicles a day, roughly 10% of them trucks, projected to reach 4,304 by 2044. The structure is 510 ft (155.4 m) long and 30 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesSalmon Falls RD
CrossesSouth Fk American River
Location4.5 MI S Pilot Hill
RouteCounty Highway 0
Coordinates38.77271, -121.03752
Functional classRural Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.3 US tons
Inventory rating20.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadH 15
Structure length510 ft (155.4 m)
Longest span227 ft (69.3 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic1,900 (2019)
Projected traffic4,304 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 Salmon Falls RD over South Fk American River built?

It was built in 1953, making it 72 years old in 2025.

What condition is Salmon Falls RD over South Fk American River 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 July 2024.

How much traffic does Salmon Falls RD over South Fk American River carry?

About 1,900 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Salmon Falls RD over South Fk American River?

The structure is 510 ft (155.4 m) long with a longest span of 227 ft (69.3 m) and a deck 30 ft wide.

Who owns Salmon Falls RD over South Fk American River?

It is owned by the County Highway Agency.