US Bridges

Kneeland Road over Lawrence Creek

Fair

Humboldt County, California · 26.1 MI Ne/O Bridgeville · Structure no. 04C0041

Built
1949
76 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
58 ft
1 main span
Daily traffic
28
2011 count
Owner
County
County Highway Agency

About this bridge

Kneeland Road over Lawrence Creek is a concrete tee beam carrying Kneeland Road over Lawrence Creek in Humboldt County, California. It was built in 1949, so it is 76 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 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 28 vehicles a day, projected to reach 112 by 2043. The structure is 58 ft (17.7 m) long and 23 ft wide. If it were closed, the detour would be 90.1 mi (145 km).

Location

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CarriesKneeland Road
CrossesLawrence Creek
Location26.1 MI Ne/O Bridgeville
RouteCounty Highway 0
CountyHumboldt County
StateCalifornia
Coordinates40.69755, -123.93716
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.8 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span56 ft (17.1 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2011)
Projected traffic112 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed90.1 mi (145 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 Kneeland Road over Lawrence Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is Kneeland Road over Lawrence 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 2023.

How much traffic does Kneeland Road over Lawrence Creek carry?

About 28 vehicles per day (2011 count).

How long is Kneeland Road over Lawrence Creek?

The structure is 58 ft (17.7 m) long with a longest span of 56 ft (17.1 m) and a deck 23 ft wide.

Who owns Kneeland Road over Lawrence Creek?

It is owned by the County Highway Agency.