US Bridges

Brockway Road over Truckee River

Fair

Nevada County, California · 0.1 MI S/O Donner Pass RD · Structure no. 17C0094

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
175 ft
1 main span
Daily traffic
9,170
2009 count
Owner
City
City or Municipal Highway Agency

About this bridge

Brockway Road over Truckee River is a prestressed concrete box beam or girders - multiple carrying Brockway Road over Truckee River in Nevada County, California. It was built in 1993, so it is 32 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 9,170 vehicles a day, roughly 2% of them trucks, projected to reach 21,881 by 2042. The structure is 175 ft (53.3 m) long and 56 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesBrockway Road
CrossesTruckee River
Location0.1 MI S/O Donner Pass RD
RouteCity Street 0
CountyNevada County
StateCalifornia
Coordinates39.32641, -120.18308
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length175 ft (53.3 m)
Longest span175 ft (53.3 m)
Deck width56 ft (17.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,170 (2009)
Projected traffic21,881 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Brockway Road over Truckee River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Brockway Road 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 Brockway Road over Truckee River carry?

About 9,170 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is Brockway Road over Truckee River?

The structure is 175 ft (53.3 m) long with a longest span of 175 ft (53.3 m) and a deck 56 ft wide.

Who owns Brockway Road over Truckee River?

It is owned by the City or Municipal Highway Agency.