Debris build up along the East Branch of the Pemigewasset River at the Route 112 bridge in Lincoln, New Hampshire USA from Tropical Storm Irene in 2011 This tropical storm / hurricane caused destruction along the East coast of the United States and the W. Debris build up along the East Branch of the Pemigewasset River at the Route 112 bridge in Lincoln, New Hampshire USA from Tropical Storm Irene in 2011 This tropical storm / hurricane caused destruction along the East coast of the United Stat