US Bridges

Wilder Ridge RD over Honeydew Creek

Good

Humboldt County, California · 2 MI S Mattole RD · Structure no. 04C0067

Built
1990
35 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
160 ft
1 main span
Daily traffic
189
2009 count
Owner
County
County Highway Agency

About this bridge

Wilder Ridge RD over Honeydew Creek is a prestressed concrete box beam or girders - multiple carrying Wilder Ridge RD over Honeydew Creek in Humboldt County, California. It was built in 1990, so it is 35 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 189 vehicles a day, roughly 10% of them trucks, projected to reach 217 by 2042. The structure is 160 ft (48.8 m) long and 27 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesWilder Ridge RD
CrossesHoneydew Creek
Location2 MI S Mattole RD
RouteCounty Highway 0
Coordinates40.22208, -124.11142
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length160 ft (48.8 m)
Longest span156 ft (47.4 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic189 (2009)
Projected traffic217 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 Wilder Ridge RD over Honeydew Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Wilder Ridge RD over Honeydew Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Wilder Ridge RD over Honeydew Creek carry?

About 189 vehicles per day (2009 count), of which roughly 10% are trucks.

How long is Wilder Ridge RD over Honeydew Creek?

The structure is 160 ft (48.8 m) long with a longest span of 156 ft (47.4 m) and a deck 27 ft wide.

Who owns Wilder Ridge RD over Honeydew Creek?

It is owned by the County Highway Agency.