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State Materials Laboratory
1655 S 2nd Ave
Tumwater, WA
98512-6951

Page maintained by:
Shannon Huber

Materials Laboratory Contacts

Phone: 360-709-5400
Main Fax: 360-709-5585
Alternate Fax:  360-709-5588

Physical Address: 

1655 S. 2nd Avenue
Tumwater, WA 98512
Map and Driving Directions (Google Maps)

Mailing Address: 

PO Box 47365
Tumwater, WA 98512

Conference Room:

The conference room is available to WSDOT employees only. Room capacity allows up to 40 people. Call 360-709-5400 to make arrangements.

Staff Contacts


State Materials Engineer 

Library

Business Administration

    Construction Materials Services

    Adminstration

    • Joe DeVol, Asst. Construction Materials Engineer, 360-709-5421
    • David Jones, Asst. Construction Materials Engineer Admin., 360-705-5411
    • Linda Hughes , Quality Assurance Systems Manager, 360-709-5412
    • Rob Molohon , Materials Quality Assurance Engineer, 360-709-5441
    • Randy Mawdsley , Design Build Quality Systems Manager, 360-709-5441

    Materials Testing and Fabrication Inspection

    Office e-mail: FabInspect@wsdot.wa.gov  
    Office phone: 360-709-5407

    Qualified Products List (QPL)

    Request for Approval of Material (RAM)

    Record of Materials (ROM)

    Aggregate Source Approval (ASA)

    Spokane Inspection Office: 509-324-6169


    Geotechnical Services

    • Tony Allen , State Geotechnical Engineer, 360-709-5450

    Foundation Engineering and Construction

    Engineering Support

    Laboratory Testing

    • Sam Wade , (Acting) Transportation Technician, 360-709-5455

    Engineering Geology Design and Construction

    Field Exploration
    Office phone: 360-709-5464

    Information Technology 

    Pavement Engineering

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