Best Bridges The 10 Best Bridges in Maryland Here are the pictures of the ten best bridges in Maryland. You can click on them to get a full size view. MD 7 over the Gunpowder Falls Blooming Rose Road over I-68, Garrett County, MD Rendering of an Alternate Bridge on MD450 Thomas Johnson – MD 2/4 over Lower Patuxent River, St. Mary’s/Calvert City I-83 over I-695 Baltimore County, MD I-95/I-495 Interchange Prince George’s County, MD I-83 over Gunpowder River Baltimore County, MD Booth’s Mill Bridge over Antietam Creek Ridge Road over I-70 Frederick County, MD MD 450 over Severn River Anne Arundel County, MD Maryland Transportation Authority’s Toll Bridges Francis Scott Key Bridge (I-695) Thomas J. Hatem Memorial Bridge (US40) William Preston Lane Jr. Memorial (Bay) Bridge (US50/301) Governor Harry W. Nice memorial Bridge (US301)