US Bridges

Soda Springs Road over N Fk American River

Fair

Placer County, California · 9 MI S of Soda Springs · Structure no. 19C0071

Built
1900
125 years old
Condition
Fair
inspected July 2023
Type
Truss - Thru
Steel
Length
79 ft
1 main span
Daily traffic
125
1996 count
Owner
County
County Highway Agency

About this bridge

Soda Springs Road over N Fk American River is a steel truss - thru carrying Soda Springs Road over N Fk American River in Placer County, California. It was built in 1900, so it is 125 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 125 vehicles a day, roughly 10% of them trucks, projected to reach 217 by 2041. The structure is 79 ft (24.1 m) long and 12 ft wide. If it were closed, the detour would be 75.2 mi (121 km).

CarriesSoda Springs Road
CrossesN Fk American River
Location9 MI S of Soda Springs
RouteCounty Highway 0
Coordinates39.24741, -120.35258
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating25 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length79 ft (24.1 m)
Longest span75 ft (22.9 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (1996)
Projected traffic217 by 2041
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.2 mi (121 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 Soda Springs Road over N Fk American River built?

It was built in 1900, making it 125 years old in 2025.

What condition is Soda Springs Road over N 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 2023.

How much traffic does Soda Springs Road over N Fk American River carry?

About 125 vehicles per day (1996 count), of which roughly 10% are trucks.

How long is Soda Springs Road over N Fk American River?

The structure is 79 ft (24.1 m) long with a longest span of 75 ft (22.9 m) and a deck 12 ft wide.

Who owns Soda Springs Road over N Fk American River?

It is owned by the County Highway Agency.