US Bridges

Kings Peak Road over North Fork Bear Creek

Good

Humboldt County, California · 2 MI S/O Wilder Ridge RD · Structure no. 04C0144

Built
1993
32 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
75
2011 count
Owner
County
County Highway Agency

About this bridge

Kings Peak Road over North Fork Bear Creek is a prestressed concrete box beam or girders - multiple carrying Kings Peak Road over North Fork Bear Creek in Humboldt County, California. It was built in 1993, so it is 32 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 75 vehicles a day, roughly 1% of them trucks, projected to reach 109 by 2041. The structure is 92 ft (28 m) long and 25 ft wide.

CarriesKings Peak Road
CrossesNorth Fork Bear Creek
Location2 MI S/O Wilder Ridge RD
RouteCounty Highway 0
Coordinates40.14654, -124.07582
Functional classRural Minor Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2011)
Projected traffic109 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Kings Peak Road over North Fork Bear Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Kings Peak Road over North Fork Bear 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 July 2023.

How much traffic does Kings Peak Road over North Fork Bear Creek carry?

About 75 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Kings Peak Road over North Fork Bear Creek?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 25 ft wide.

Who owns Kings Peak Road over North Fork Bear Creek?

It is owned by the County Highway Agency.