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Derek Staton, PE

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With over 25 years of progressive experience, Derek's expertise includes design build, project management, bridge design and bridge inspection.

Project management and bridge design management roles include projects with construction values up to $380 million. Projects include signature bridges, interstate widenings, green field construction and interstate rehabilitation. Bridge design experience includes timber, cast-in-place concrete, prestressed concrete, curved steel and segmental structures. 

Derek is a registered professional engineer in FL, GA, MN, NC, OR, SC, TN, TX, and VA.

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Kevin L. Gantt, PE

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Kevin has over 28 years of experience in transportation management. He has managed a variety of construction projects including widenings, interstate widenings, interchange upgrades, rehabilitations, resurfacing, pedestrian bridges, bridge replacements, and enhancement projects.

Formerly with the South Carolina Department of Transportation, Kevin 

has served as a planner, project manager, and District Administrator. His experience uniquely qualifies him in the review of construction plans, determining constructability, and identifying funding sources for a wide range of projects.

Kevin is a registered professional engineer in South Carolina.

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Jeff Mulliken, PhD, PE


Jeff has over 30 years of leadership experience in the planning, design, and construction of large scale transportation projects throughout the southeast. He has managed numerous bridge, major highway, and traffic engineering projects . Jeff has extensive experience on design-bid-build and design-build projects and has demonstrated his ability to be responsive to his clients and to effectively manage those projects from inception through construction. He also has extensive structural engineering design and analysis experience, including bridge widenings, retaining wall design, highway structures, seismic design, soil-structure interaction analyses, structural load rating analyses, constructability reviews, cost estimating, and structural rehabilitation. 


Jeff received B.S., M.S. and Ph.D. degrees in Civil Engineering from the University of South Carolina.   He was selected as ASCE’s South Carolina Engineer of the Year in 2012 and ACEC-SC honored him with the Service to the Profession Award that same year.  Jeff has served in Executive Leadership positions for the ACEC-SC Board of Directors including President and is a former member of the SC Board of Registration for Professional Engineers and Land Surveyors.


Jeff is a registered professional engineer in SC, NC, GA, FL, MO and other states.

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Hisham Abdelaziz, PE

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Hisham has more than 30 years of experience in the management and design of transportation projects of all sizes and varying levels of complexity, both conventional and alternative delivery.  His management experience extends to project organization, overseeing all phases of project development, contract negotiations, scheduling, budget establishment and tracking, quality assurance and quality control, client and subconsultant coordination, public involvement, staff oversight, and technical training and assistance. Additionally, Mr. Abdelaziz is very knowledgeable and experienced on a technical level including geometric layout, pavement design, urban and rural hydrology and hydraulics design, scour analysis, signing and pavement markings, traffic control, and specifications and cost estimates. Since starting his career, Mr. Abdelaziz has successfully managed and led the design efforts on several transportation projects for many state DOTs, counties and municipalities.

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