Flume Ridge Covered Bridge Posted on July 25, 2020December 14, 2020 by Charles F-M Flume Ridge Covered Bridge – Built 1905 Magaguadavic River #7, built in 1905 is 18.3 metres long. This bridge is very easy to get to even though it is in a very remote area. It is down in a little valley and the river is an incredible view. Interior of bridge. View of the river.