We provide civil/site design and land surveying, environmental, geotechnical, construction administration & inspection, accident reconstruction, roofing/building envelope, A/V system design, troubleshooting & installation, transportation design (bridge/roadway), and specialized testing services to the construction industry. CTL Engineering (www.ctleng.com) is an award winning, full service consulting engineering firm with 15 locations across OH, IN, WV, KY, NC, SC, and VA with a rich history over our 97 years in business.