US Bridges

Centerville Road over Fleener Creek

Fair

Humboldt County, California · 2.3 MI West of Poole RD · Structure no. 04C0175

Built
1952
73 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
444
2015 count
Owner
County
County Highway Agency

About this bridge

Centerville Road over Fleener Creek is a concrete slab carrying Centerville Road over Fleener Creek in Humboldt County, California. It was built in 1952, so it is 73 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 444 vehicles a day, roughly 5% of them trucks, projected to reach 213 by 2042. The structure is 39 ft (12 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCenterville Road
CrossesFleener Creek
Location2.3 MI West of Poole RD
RouteCounty Highway 0
Coordinates40.55689, -124.34981
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating80.7 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (12 m)
Longest span38 ft (11.6 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic444 (2015)
Projected traffic213 by 2042
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Centerville Road over Fleener Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is Centerville Road over Fleener 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 August 2024.

How much traffic does Centerville Road over Fleener Creek carry?

About 444 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Centerville Road over Fleener Creek?

The structure is 39 ft (12 m) long with a longest span of 38 ft (11.6 m) and a deck 20 ft wide.

Who owns Centerville Road over Fleener Creek?

It is owned by the County Highway Agency.