Construction begins on 'missing link' of Norwalk River Valley Trail FacebookTwitterEmail 1of6 Norwalk River Valley Trail Executive Director Beth Merrill chats with Norwalk Mayor Harry Rilling during the ground breaking for a new mile long section of the trail, known as the Missing Link, in Norwalk Conn. on Tuesday, March 16, 2021. The new section connects Union Park to New Canaan Avenue.Brian A. Pounds / Hearst Connecticut MediaShow MoreShow Less 2of6 Construction of a new section of the Norwalk River Valley Trail is set to begin in Norwalk Conn. on Tuesday, March 16, 2021. The new section connects Union Park to New Canaan Avenue.Brian A. Pounds / Hearst Connecticut MediaShow MoreShow Less