US Bridges

Conde Lane over Windsor Creek

Fair

Sonoma County, California · 320 Ft East of Bell Ave · Structure no. 20C0506

Built
1995
30 years old
Condition
Fair
inspected July 2023
Type
Arch - Deck
Concrete
Length
26 ft
1 main span
Daily traffic
5,400
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Conde Lane over Windsor Creek is a concrete arch - deck carrying Conde Lane over Windsor Creek in Sonoma County, California. It was built in 1995, so it is 30 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 6 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 5,400 vehicles a day, roughly 5% of them trucks, projected to reach 9,959 by 2045. The structure is 26 ft (7.9 m) long and 71 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesConde Lane
CrossesWindsor Creek
Location320 Ft East of Bell Ave
RouteCounty Highway 0
Coordinates38.54652, -122.80999
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width71 ft (21.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2013)
Projected traffic9,959 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Conde Lane over Windsor Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Conde Lane over Windsor 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 Conde Lane over Windsor Creek carry?

About 5,400 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Conde Lane over Windsor Creek?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 71 ft wide.

Who owns Conde Lane over Windsor Creek?

It is owned by the Town or Township Highway Agency.