As Carroll Creek meanders along the southern side of Baker Park in Frederick, Maryland, it passes beneath several distinct bridges, including an iron and swinging bridge, but the most eye-catching one of all is Carroll Creek Covered Bridge. Like a microcosmic companion to the larger covered bridges a few miles north of downtown Frederick in Thurmont and Rocky Ridge, the Carroll Creek Covered Bridge has a similar look and feel with its red-painted exterior, but it’s much smaller in width, constructed more for foot traffic rather than cars. At 40…