US Bridges

Spenceville RD over Dry Creek

Fair

Yuba County, California · 0.8 MI E of Waldo RD · Structure no. 16C0079

Built
1920
105 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
50
2011 count
Owner
County
County Highway Agency

About this bridge

Spenceville RD over Dry Creek is a concrete continuous slab carrying Spenceville RD over Dry Creek in Yuba County, California. It was built in 1920, so it is 105 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 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 50 vehicles a day, roughly 1% of them trucks, projected to reach 183 by 2046. The structure is 29 ft (8.8 m) long and 20 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesSpenceville RD
CrossesDry Creek
Location0.8 MI E of Waldo RD
RouteCounty Highway 0
CountyYuba County
StateCalifornia
Coordinates39.10692, -121.29242
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width20 ft (6.2 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2011)
Projected traffic183 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 Spenceville RD over Dry Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is Spenceville RD over Dry Creek 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 Spenceville RD over Dry Creek carry?

About 50 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Spenceville RD over Dry Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 20 ft wide.

Who owns Spenceville RD over Dry Creek?

It is owned by the County Highway Agency.