The Office of Highway Development (OHD) designs most State and federal roadways in Maryland. The OHD also manages design and environmental permitting. Our seven divisions promote the safety and functionality of Maryland's highway system. The OHD uses innovative approaches in planning, designing and engineering solutions to integrate efficient accessibility, a greener environment and economic improvements in Maryland's communities.
707 North Calvert Street
Baltimore, Maryland 21202-3601
Main Business Line – 410-545-0300
Safety Campaigns – 1-800-323-6742
For emergencies, call MDOT SHA's Statewide Operations Center at 410-582-5650.
Frequently Asked Questions
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