Parades 09 Friday Sep 2016 Posted by Ronald Parks in Baltimore, water history ≈ Leave a comment TagsBaltimore, bricks, engineering, FILTRATION, glass plate negatives, Gunpowder Falls, HISTORY, Lake Montebello, Montebello, Public Works, water history Who doesn’t love a parade. Wish I would have been around for this one! This float was built in the 1880s to promote the building of the Loch Raven – Montebello tunnel. Longest in America at the time – 7 miles long. Share this:EmailFacebookLike this:Like Loading...