I-680 Express Lanes Construction Notice: May 2016 Document Date May 1, 2016 Document Title I-680 Express Lanes Construction Notice: May 2016 File Name 2016_May_Construction Update_Final.pdf Language English Publisher MTC Corporate Author MTC Tags View documents also tagged as Bay Area Express Lanes View documents also tagged as Contra Costa County (Calif.) View documents also tagged as Express Lanes View documents also tagged as Freeways View documents also tagged as I-680