US Bridges

Howe Creek Road over Howe Creek

Fair

Humboldt County, California · 2.1 MI S/O Blue Slide RD · Structure no. 04C0253

Built
2006
19 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
19
2015 count
Owner
County
County Highway Agency

About this bridge

Howe Creek Road over Howe Creek is a steel stringer/multi-beam or girder carrying Howe Creek Road over Howe Creek in Humboldt County, California. It was built in 2006, so it is 19 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 19 vehicles a day, roughly 3% of them trucks, projected to reach 51 by 2042. The structure is 90 ft (27.3 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesHowe Creek Road
CrossesHowe Creek
Location2.1 MI S/O Blue Slide RD
RouteCounty Highway 0
CountyHumboldt County
StateCalifornia
Coordinates40.48526, -124.17111
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length90 ft (27.3 m)
Longest span82 ft (25 m)
Deck width12 ft (3.6 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19 (2015)
Projected traffic51 by 2042
Trucks3%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Howe Creek Road over Howe Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Howe Creek Road over Howe 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 Howe Creek Road over Howe Creek carry?

About 19 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is Howe Creek Road over Howe Creek?

The structure is 90 ft (27.3 m) long with a longest span of 82 ft (25 m) and a deck 12 ft wide.

Who owns Howe Creek Road over Howe Creek?

It is owned by the County Highway Agency.