US Bridges

Floriston Way over Truckee River

Fair

Nevada County, California · Just E/O I-80 · Structure no. 17C0097

Built
2010
15 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
182 ft
3 main spans
Daily traffic
260
2010 count
Owner
County
County Highway Agency

About this bridge

Floriston Way over Truckee River is a concrete continuous box beam or girders - multiple carrying Floriston Way over Truckee River in Nevada County, California. It was built in 2010, so it is 15 years old, younger 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 260 vehicles a day, roughly 10% of them trucks, projected to reach 312 by 2042. The structure is 182 ft (55.5 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFloriston Way
CrossesTruckee River
LocationJust E/O I-80
RouteCounty Highway 0
Coordinates39.39429, -120.02489
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
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 protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span71 ft (21.6 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2010)
Projected traffic312 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Floriston Way over Truckee River built?

It was built in 2010, making it 15 years old in 2025.

What condition is Floriston Way over Truckee 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 August 2024.

How much traffic does Floriston Way over Truckee River carry?

About 260 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is Floriston Way over Truckee River?

The structure is 182 ft (55.5 m) long with a longest span of 71 ft (21.6 m) and a deck 33 ft wide.

Who owns Floriston Way over Truckee River?

It is owned by the County Highway Agency.