US Bridges

Steele Lane over Pauline Creek

Fair

Sonoma County, California · Steele Lane · Structure no. 20C0184

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
6,000
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Steele Lane over Pauline Creek is a concrete continuous culvert carrying Steele Lane over Pauline Creek in Sonoma County, California. It was built in 1960, so it is 65 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 6,000 vehicles a day, roughly 2% of them trucks, projected to reach 6,583 by 2044. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSteele Lane
CrossesPauline Creek
LocationSteele Lane
RouteCity Street 0
CountySonoma County
StateCalifornia
Coordinates38.45969, -122.74754
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
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
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating41.4 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2019)
Projected traffic6,583 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Steele Lane over Pauline Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Steele Lane over Pauline 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 Steele Lane over Pauline Creek carry?

About 6,000 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Steele Lane over Pauline Creek?

The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m).

Who owns Steele Lane over Pauline Creek?

It is owned by the City or Municipal Highway Agency.