Mr. Gallahue has over 26 years of experience in Building Engineering including demolition and closure of several coal and thermal energy plant projects. In addition to closure projects, his work spans preparation of construction specifications, materials estimation and Materials Quality Control projects. Mr. Gallahue has provided his engineering expertise on numerous decommissioning and demolition projects for clients throughout North America, providing material quantity estimations, decommissioning and demolition cost estimates and closure planning, and peer review of demolition tender documents and contractor demolition plans. Since joining GHD in 2008 Mr. Gallahue has participated in over 40 large-scale demolition projects as a Project Manager, Lead Demolition Engineer and Technical Reviewer. Mr. Gallahue is a GHD Associate and the Technical Service Lead for the Decommissioning, Closure & Rehabilitation service line for North America.