DHDC Engineering Consulting Services, Inc. (DHDC) is a DBE, MBE, EDGE, SBE, LEDE engineering consulting firm. DHDC is headquartered in Columbus with offices in Middletown and Cleveland (TP), Ohio. We are prequalified to provide services for Geotechnical (engineering, drilling, and laboratory), Subsurface Utility Engineering (SUE) projects, and we are also certified for "Special Inspections" under the Ohio Building Code (OBC)-Chapter 17 from the Board of Building Standards. Our laboratory is certified by the American Materials Reference Laboratory (AMRL) and Cement and Concrete Reference Laboratory (CCRL) and meets all American Standards for Testing and Materials (ASTM) and American Concrete Institute (ACI) specifications. DHDC is a GREEN SPOT participating firm in the City of Columbus.
DHDC practices AASHTO R18 quality assurance, including maintaining records of all in-house calibrations and external calibrations. DHDC is in good standing for numerous ASTM and AASHTO procedures in concrete, soils, asphalt, and aggregate through AMRL. We are currently active in the AMRL and CCRL proficiency sample programs. DHDC keeps up with all proper safety procedures including eye wash stations, proper storage of chemicals, and proper heat and eye protection requirements.
DHDC's highly qualified team is comprised of 20 licensed engineers, construction managers, environmental experts, and support staff who combine their technical skills, experience, dedication, and enthusiasm to providing the highest quality services through a combined team effort. DHDC's key contacts comprise: M. O. Haque , M.S, P.E , President, Savvas Sophocleous, Vice President, Mike Sminchak, Operations Manager and Gisella Mandriotti, Office Manager.
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At DHDC Engineering Consulting we care about our clients. We have worked hard to establish lasting relationships that go beyond merely making a profit.