Tappan Zee Bridge Maintenance Pier

  • Converting 1025’ temporary trestle into permanent maintenance platform and extending permanent maintenance platform another 375’.
  • Construction of 5 Ea. Landing piers, 3 EA floating dock.
  • Installation of 65 Ea. 120’ – 197’ long 36” dia. pipe piles and 6 Ea. 24” dia. pipe piles for floating dock.
  • 28 EA – 28” dia. rock socket drilling thru 36” dia. pipe piles.
  • Installation of 147 Ea. HDPE jackets over 36” dia. pipe pile.
  • Installation of 103 Ea. precast pile caps, 314 precast planks, 12 Ea. Precast landing beams.
  • Installation of marine fenders, bollards, cleats, and 2,715’ guard rail.
  • 58,000 SF of cast in place concrete slab.
  • Removal of 67 Ea. False work pile with diver.
  • Removal of 950’ long existing light duty trestle.