Engineer - Civil go Results Found: 3 Button group with nested dropdown Duplantis Design Group Duplantis Design Group 16564 E. Brewster Rd. Ste. 101 Covington LA 70433 (985) 249-6180 Visit Website Quality Engineering & Surveying, LLC Quality Engineering & Surveying, LLC 18320 Hwy. 42 Port Vincent LA 70726 (225) 698-1600 Spangler Engineering, LLC Spangler Engineering, LLC 214 SW Railroad Ave. Hammond LA 70403 (985) 542-8665