US Bridges

Broadway over Clark Slough

Good

Yuba County, California · 0.1 MI E of Feather R Blv · Structure no. 16C0085

Built
1980
45 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
56 ft
2 main spans
Daily traffic
390
2008 count
Owner
County
County Highway Agency

About this bridge

Broadway over Clark Slough is a concrete continuous slab carrying Broadway over Clark Slough in Yuba County, California. It was built in 1980, so it is 45 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 390 vehicles a day, roughly 5% of them trucks, projected to reach 1,386 by 2046. The structure is 56 ft (17.1 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesBroadway
CrossesClark Slough
Location0.1 MI E of Feather R Blv
RouteCounty Highway 0
Coordinates39.04756, -121.57679
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length56 ft (17.1 m)
Longest span27 ft (8.2 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2008)
Projected traffic1,386 by 2046
Trucks5%
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 Broadway over Clark Slough built?

It was built in 1980, making it 45 years old in 2025.

What condition is Broadway over Clark Slough 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 August 2024.

How much traffic does Broadway over Clark Slough carry?

About 390 vehicles per day (2008 count), of which roughly 5% are trucks.

How long is Broadway over Clark Slough?

The structure is 56 ft (17.1 m) long with a longest span of 27 ft (8.2 m) and a deck 33 ft wide.

Who owns Broadway over Clark Slough?

It is owned by the County Highway Agency.