The American Association of State Highway and Transportation Officials (AASHTO) appointed Dallas Hammit and Amy Tootle as the chair and vice chair, respectively, for the group’s committee on construction, which ensures that AASHTO’s guide to specifications for construction is kept up-to-date with the latest best practices gathered from its state department of transportation members.
Hammit currently serves as state engineer and deputy director for the Arizona Department of Transportation (ADOT). As leader of ADOT’s infrastructure delivery and operations division, transportation systems management and operations division, and multimodal transportation division, he oversees development and delivery of its construction program, including environmental studies, engineering design, land acquisition and construction. Hammit also supports the maintenance and operation of more than 6,000 miles (9,656 km) of interstate and state highways in Arizona.
Hammit joined ADOT in June 1999 as senior resident engineer in the Yuma district. He later served both the Yuma and Prescott districts as district engineer. In 2009 he became deputy state engineer for operations, senior deputy for development in 2012 and then state engineer in 2014.
Vice Chair Tootle is the state construction engineer at the Florida Department of Transportation (FDOT), a position she has held for three years. She oversees a technical staff of eleven specialists and engineers who develop construction policies and procedures for the agency.
Tootle, who joined FDOT in the fall of 2010 after an 11-year career in the private sector, is a registered civil professional engineer and certified public manager. She is a 1999 graduate of the University of Florida with a bachelor of science degree in environmental engineering.