Contact Brennan

DAM CONSTRUCTION OFFICE:

2401 W Waukau Ave
Oshkosh, WI 54904

Phone:
 920-376-7023

East Coast Dive & Marine Construction Office:

Phone:
401-295-5256

St. Paul Area Office:

644 Bayfield Street
Unit 220
St. Paul, MN 55107

Phone:
651-224-3007

Minneapolis Area Office:

500 S. Marschall Road
Suite 110
Shakopee, MN 55379

Phone:
612-282-3282

Duluth AREA Office:

716 Garfield Avenue
Duluth, MN 55802

Phone:
218-349-5237

Illinois Marine Construction & Dive Office:

501 Illinois Ave
Ottawa, IL 61350

Phone:
815-433-5228

Hydrographic Survey Office:

1048 Glory Rd., Suite E.
Green Bay, WI 54304

Phone:
920-632-6192

Mid-South Regional Office

Phone:
270-426-9088