US Bridges

Crow City Road over North Fork Yuba River

Fair

Sierra County, California · Just South of Route 49 · Structure no. 13C0027

Built
1963
62 years old, rebuilt 2018
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
77 ft
1 main span
Daily traffic
50
1982 count
Owner
County
County Highway Agency

About this bridge

Crow City Road over North Fork Yuba River is a steel stringer/multi-beam or girder carrying Crow City Road over North Fork Yuba River in Sierra County, California. It was built in 1963 and reconstructed in 2018, so it is 62 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 50 vehicles a day, projected to reach 66 by 2046. The structure is 77 ft (23.4 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCrow City Road
CrossesNorth Fork Yuba River
LocationJust South of Route 49
RouteCounty Highway 0
CountySierra County
StateCalifornia
Coordinates39.55149, -120.7852
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length77 ft (23.4 m)
Longest span74 ft (22.6 m)
Deck width17 ft (5.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1982)
Projected traffic66 by 2046
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Crow City Road over North Fork Yuba River built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2018.

What condition is Crow City Road over North Fork Yuba 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 Crow City Road over North Fork Yuba River carry?

About 50 vehicles per day (1982 count).

How long is Crow City Road over North Fork Yuba River?

The structure is 77 ft (23.4 m) long with a longest span of 74 ft (22.6 m) and a deck 17 ft wide.

Who owns Crow City Road over North Fork Yuba River?

It is owned by the County Highway Agency.