Home Construction Clock starts on Tappan Zee construction ConstructionGovernmentHudson ValleyPremium ContentTransportationWestchester Clock starts on Tappan Zee construction By John Golden - October 17, 2013 Contracting crews this week began driving piles that will support the new $3.1 billion Tappan Zee bridge. This content is for Westfair Online members only. Please Sign in / Join to view this content. Become a member by Registering Here.