Denton County Transportation Authority Welcomes New Board Members

Dianne Costa. (Image courtesy DCTA).

The Denton County Transportation Authority announced yesterday that Hillwood Properties vice president Mark Miller and former Highland Village mayor Dianne Costa have been appointed to its board of directors. Miller will represent Flower Mound and was appointed in June 2017, and Costa will represent the Highland Village and was appointed in September 2017.

In addition to his work with Hillwood, Miller is responsible for retail development at Alliance Texas and surrounding areas. Prior to joining Hillwood, Miller was a senior manager at Regency Centers where he was responsible for negotiating a $100 million lifestyle center in Highland Village. Before this, he was a research analyst at North Central Council of Governments, where he provided demographic assistance to many North Texas entities. He holds a Bachelor of Science degree in Geography from Texas A&M University and two masters degrees, one of science and applied geography and the other of business administration, from the University of North Texas.

Costa retired in December of 2016 after serving as a distinguished credentialed non-attorney mediator and parenting coordinator for 13 years. She has represented Highland Village, Denton County and the region in a variety of areas. Along with the city council and staff, she was instrumental in the expansion of Texas Highway 2499 and city’s active participation with DCTA. As mayor, Costa was asked to serve on the National Multi Modal Transportation Steering Committee as part of a national grassroots group of elected officials seeking an overhaul of U.S. transportation policy. She holds a Bachelor of Science degree in Family Studies with a minor in Government from Texas Woman’s University.

“We are excited to welcome both Dianne and Mark to DCTA’s Board of Directors,” DCTA president Jim Cline said. “We’re looking forward to their advisement and counsel which will further enhance our Board to continue to strategically guide the agency.”

DCTA is governed by a 14-member board appointed by respective entities. Large cities, small cities and at-large members serve two-year terms. DCTA’s board members have professional experience in the field of transportation, business, government, engineering and law. In accordance with DCTA by-laws, the board adopts the annual operating budget and is responsible for setting policy.


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