US Bridges

Cloverdale Blvd over Cloverdale Creek

Fair

Sonoma County, California · 0.8 Mi. N of 1st ST · Structure no. 20C0512

Built
2000
25 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
43 ft
1 main span
Daily traffic
5,700
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cloverdale Blvd over Cloverdale Creek is a concrete slab carrying Cloverdale Blvd over Cloverdale Creek in Sonoma County, California. It was built in 2000, so it is 25 years old, younger 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 5,700 vehicles a day, roughly 10% of them trucks, projected to reach 3,938 by 2045. The structure is 43 ft (13 m) long and 63 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCloverdale Blvd
CrossesCloverdale Creek
Location0.8 Mi. N of 1st ST
RouteCity Street 0
Coordinates38.81336, -123.02283
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length43 ft (13 m)
Longest span43 ft (13 m)
Deck width63 ft (19.2 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2013)
Projected traffic3,938 by 2045
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cloverdale Blvd over Cloverdale Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Cloverdale Blvd over Cloverdale 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 July 2023.

How much traffic does Cloverdale Blvd over Cloverdale Creek carry?

About 5,700 vehicles per day (2013 count), of which roughly 10% are trucks.

How long is Cloverdale Blvd over Cloverdale Creek?

The structure is 43 ft (13 m) long with a longest span of 43 ft (13 m) and a deck 63 ft wide.

Who owns Cloverdale Blvd over Cloverdale Creek?

It is owned by the City or Municipal Highway Agency.