Skip Top Navigation


State Materials Laboratory
1655 S 2nd Ave
Tumwater, WA

Page maintained by:
Shannon Huber

Materials Laboratory Contacts

Reception: 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
Olympia, WA 98504-7365

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 


Business Administration

    Construction Materials Services


    • Joe DeVol , Asst. State Materials Engineer - Materials Testing,  360-709-5421
    • David Jones , Asst. State Materials Engineer - Materials Quality, 360-709-5411
    • Randy Mawdsley , Quality Systems Manager, 360-709-5497
    • Kevin Burns, Asst. Quality Systems Manager, 360-709-5412
    • Rob Molohon , Materials Quality Assurance Engineer, 360-709-5441
    • Pat Norton, Asst. Materials Quality Assurance Engineer, 360-709-5443

    Materials Testing and Fabrication Inspection

    Office e-mail:  
    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

    Foundation Engineering and Construction

    Engineering Support

    Engineering Geology Design and Construction

    Field Exploration
    Office phone: 360-709-5464

    Information Technology 

    Pavement Engineering

      top top