US Bridges

State Route 89 over Truckee River

Good

Placer County, California · 03-PLA-089-8.40 · Structure no. 19 0205

Built
2019
6 years old
Condition
Good
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
153 ft
1 main span
Daily traffic
12,000
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 89 over Truckee River is a prestressed concrete tee beam carrying State Route 89 over Truckee River in Placer County, California. It was built in 2019, so it is 6 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,000 vehicles a day, roughly 6% of them trucks, projected to reach 15,000 by 2043. The structure is 153 ft (46.6 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesState Route 89
CrossesTruckee River
Location03-PLA-089-8.40
RouteState Highway 89
Coordinates39.16378, -120.14836
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length153 ft (46.6 m)
Longest span115 ft (35 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2019)
Projected traffic15,000 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 89 over Truckee River built?

It was built in 2019, making it 6 years old in 2025.

What condition is State Route 89 over Truckee River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does State Route 89 over Truckee River carry?

About 12,000 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is State Route 89 over Truckee River?

The structure is 153 ft (46.6 m) long with a longest span of 115 ft (35 m) and a deck 44 ft wide.

Who owns State Route 89 over Truckee River?

It is owned by the State Highway Agency.