Mothers Day Flood 2006 depth marker on Thunder Bridge abutment – The old marker was somehow knocked off. We need a simple sign showing the Ipswich River’s record high on that date. The old one was a small wooden triangle with date. The mark at the water’s high point is still there. The one at the 114 bridge at Farnsworth Landing installed after that flood is still in place. The Peabody Street and Maple Street bridges should have markers also.