US Bridges

Leveroni RD over Felder Creek

Good

Sonoma County, California · 1.45 MI W of SR 12 · Structure no. 20C0210

Built
1972
53 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
6,000
2015 count
Owner
County
County Highway Agency

About this bridge

Leveroni RD over Felder Creek is a concrete continuous culvert carrying Leveroni RD over Felder Creek in Sonoma County, California. It was built in 1972, so it is 53 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 6,000 vehicles a day, roughly 2% of them trucks, projected to reach 7,524 by 2040. The structure is 25 ft (7.6 m) long and 50 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLeveroni RD
CrossesFelder Creek
Location1.45 MI W of SR 12
RouteCounty Highway 0
Coordinates38.27398, -122.48393
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width50 ft (15.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2015)
Projected traffic7,524 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Leveroni RD over Felder Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Leveroni RD over Felder Creek 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 May 2023.

How much traffic does Leveroni RD over Felder Creek carry?

About 6,000 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Leveroni RD over Felder Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 50 ft wide.

Who owns Leveroni RD over Felder Creek?

It is owned by the County Highway Agency.