CONTACT US

OFFICE LOCATIONS:

HOME OFFICE
921 SW WASHINGTON STREET
SUITE 765
PORTLAND, OR 97205
TEL: 503.766.3199
FAX: 503.922.0105

DENVER, COLORADO OFFICE
2851 S PARKER ROAD
SUITE 424
AURORA, CO 80014
TEL: 720.287.0364
CONTACTS:

ROBERT B. BITTNER, P.E.
PRESIDENT
DIRECT: 503.766.3562
CELL: 503.926.4360
rbb@bittner-shen.com


TOM PETRAY, P.E.
CHIEF ENGINEER
DIRECT: 720.328.5145
CELL: 720.201.9474
trp@bittner-shen.com


WENJUN DONG, Ph.D, P.E.
CHIEF GEOTECHNICAL ENGINEER
DIRECT: 503.766.3422
CELL: 415.217.9775
wjd@bittner-shen.com

Home Office: 921 SW Washington Street, Suite 765, Portland, OR 97205 Tel: 503.766.3199 Fax: 503.922.0105

Denver Office: 2851 S Parker Road, Suite 424, Aurora, CO 80014 Tel: 720.287.0364