Contact Us:

Bill Helsley, P.E.

telephone: 425.486.6533 ext. 101

cell: 206.484.3492

bhelsley@sdaengineers.com

Jonathan Turcott, P.E.

telephone: 425.486.6533 ext. 102

cell: 206.484.3245

jturcott@sdaengineers.com

Scott Mesic, P.E.

telephone: 425.486.6533 ext. 103

cell: 206.948.3862

smesic@sdaengineers.com

Andy Reaves, P.E. 

telephone: 425.486.6533 ext 111

cell: 425.478.9996

areaves@sdaengineers.com


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