US Bridges

Valley Ford RD over Bloomfield Creek

Good

Sonoma County, California · 0.2 MI W Bloomfield RD · Structure no. 20C0294

Built
1970
55 years old
Condition
Good
inspected February 2025
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
2,900
2018 count
Owner
County
County Highway Agency

About this bridge

Valley Ford RD over Bloomfield Creek is a concrete slab carrying Valley Ford RD over Bloomfield Creek in Sonoma County, California. It was built in 1970, so it is 55 years old, older 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 2,900 vehicles a day, roughly 4% of them trucks, projected to reach 4,108 by 2043. The structure is 33 ft (10.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesValley Ford RD
CrossesBloomfield Creek
Location0.2 MI W Bloomfield RD
RouteCounty Highway 0
Coordinates38.31046, -122.855
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width40 ft (12.2 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2018)
Projected traffic4,108 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Valley Ford RD over Bloomfield Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Valley Ford RD over Bloomfield 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 February 2025.

How much traffic does Valley Ford RD over Bloomfield Creek carry?

About 2,900 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Valley Ford RD over Bloomfield Creek?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 40 ft wide.

Who owns Valley Ford RD over Bloomfield Creek?

It is owned by the County Highway Agency.