California Department of Transportation District 1

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Materials Lab

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CalTrans Humboldt County Field Laboratories

humco labs

Caltrans District 01 Main Laboratory

1726 Albee st.

Eureka, Ca. 95501

445-6373

 

Caltrans Field Laboratories

Arcata R.E. Office / Lab

5065 Boyd Rd. Suite “G”

Arcata, Ca 95518

 

Fortuna Lab

180 Dinsmore Dr.

Fortuna, Ca. 95540

 

Cooks Valley Lab

Mercer Frasier HMA Plant

Hwy 101 & MEN. CO. RTE. 442E

240 Cooks Valley Rd. /Shared with Mercer Fraser

 

Willow Creek Maintenance Yard Lab

Hwy 96 PM 0.60

Willow Creek, Ca. 95573

 

Caltrans Accredited Private Laboratories

SHN Engineers & Geologists Inc.

812 W. Wabash

Eureka, Ca. 95501

 

Laco and Associates

21 West 4th Street

Eureka, Ca. 95501