US Bridges

Chanate Road over Paulin Creek

Fair

Sonoma County, California · Near Mendocino Avenue · Structure no. 20C0557

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
17,942
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Chanate Road over Paulin Creek is a concrete continuous culvert carrying Chanate Road over Paulin Creek in Sonoma County, California. It was built in 1965, so it is 60 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 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 17,942 vehicles a day, roughly 5% of them trucks, projected to reach 23,863 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesChanate Road
CrossesPaulin Creek
LocationNear Mendocino Avenue
RouteCity Street 0
Coordinates38.46518, -122.71883
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,942 (2019)
Projected traffic23,863 by 2044
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 Chanate Road over Paulin Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Chanate Road over Paulin 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 June 2024.

How much traffic does Chanate Road over Paulin Creek carry?

About 17,942 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Chanate Road over Paulin Creek?

The structure is 22 ft (6.7 m) long with a longest span of 11 ft (3.3 m).

Who owns Chanate Road over Paulin Creek?

It is owned by the City or Municipal Highway Agency.