Martin Marietta Materials, Inc. announced the appointment of Dorothy M. Ables to its Board of Directors, effective November 5, 2018. Ables will serve on Martin Marietta’s Audit Committee. Ables brings significant financial and operational leadership experience to the Martin Marietta Board. She served as Chief Administrative Officer of Spectra Energy Corp. from November 1, 2008 until her retirement in February 2017, culminating a more than 30 year career at Spectra Energy and its predecessor companies. As CAO, Ables was responsible for information technology, human resources, support services and community relations.