Newt Graham Lock and Dam

Removal of damaged monolith structure @ Lock & Dam. Barge struck monolith requiring removal to sound concrete for repair. All worked performed inside a cofferdam. Diamond core drilled over 690 LF of holes Core drilled wire access holes and rigging holes. Managed complex conditions due to damaged areas of monolith structure with precise drilling & wire sawing. Wire saw 3,000 SF of concrete, up to 13’ thick. Rigged and picked 15 ton sections of concrete to shore. Completed all work accident free.