Mr. Cosgriff is a professional engineer specializing in transportation design. He has developed a strong background in complex roadway design and transportation planning with additional strengths in stormwater management and traffic operations. In addition to several Ohio DOT prequalifications, he maintains Ohio certifications as a Professional Engineer, a Professional Traffic Operations Engineer, and a Certified Professional in Erosion and Sediment Control.Beyond his expertise in roadway design, Mr. Cosgriff has also engaged in other engineering specialties. This work has included experience with landside and airside airport design, aviation planning, environmental social & economic analysis, and structural design support. Additional skills include project scheduling, cost estimation, construction phasing, and field investigation. Mr. Cosgriff has gained considerable experience with many software applications necessary for the analysis, development, design, and presentation of plan set construction documents. Key proficiencies include Civil3D, Microstation, Geopak, Synchro, Highway Capacity Software, and MSOffice Suite.Specialties: Complex Geometrics, Interchange Design, Intersection Design, Traffic Control (Signing, Marking, and Signalization), Bicycle & Pedestrian Facility Design, Maintenance of Traffic Planning, Pavement Design, Hydraulic Analysis, Stormwater Management, and CAD Design.