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Tunnel Tours

  • Central Subway Chinatown Station
  • Central Subway Chinatown Station
  • Central Subway Chinatown Station
  • Central Subway Chinatown Station
  • Central Subway Chinatown Station
  • MD 355 Undercrossing Project
  • MD 355 Undercrossing Project
  • White River Tunnel
  • White River Tunnel

Skanska, Kiewit Weeks Joint Venture

  • Lay Barge with Element at Wharf
  • Element Immersion
  • Norfolk Approach Looking East

Shea Kiewit

  • Joint Venture with Robbins Main Beam

Lane

  • Hole-through, Poplar Point Shaft at 12,300 ft.
  • 640 ton, 26 ft. diameter TBM Ready for Lowering Down Shaft
  • TBM “Nannie” Lowering Down CSO-019S Shaft
The D.C. Water Anacostia River Tunnel is a 12,300 ft. long combined sewer overflow tunnel with an inside finished diameter of 23 ft. Excavated in soft ground, this tunnel has already diverted billions of gallons of water and tons of trash that used to pollute the Anacostia and Potomac Rivers every time it rained.

Keller

  • Argentina
  • Beacon Hill
  • Blue Plains
  • Blue Plains
  • Brightwater
  • Cover
  • Drilling
  • Drilling
  • Drilling
  • Dugway Cleaveland
  • First Street
  • First Street
  • First Street
  • NBX
  • NBX
  • NBX
  • NBX
  • NBX
  • NBX
  • Northgate
  • Northgate
  • Northgate
  • NYC No. 3
  • OARS3
  • Westside
  • Westside
  • Westside

Atkinson

  • Bellwood Water Supply Tunnel Atlanta
  • Bellwood Water Supply Tunnel Atlanta
  • Bellwood Water Supply Tunnel Atlanta

MTA Capital Construction

  • T301 TUNNEL REBAR > N FROM BACK OF HOUSE
  • 50TH ST. ADIT ARCH REBAR BETWEEN 301 AND 302 TUNNELS > E
  • T303 SOUTH WATERPROOFING > S
  • 53RD ST. SUMP – INTERMEDIATE SLAB > W
  • T401 TUNNEL BETWEEN BACK OF HOUSE & 50TH ST. > N
  • GCT3 CROSSOVER – CIR ROOM EXTERIOR WALL > NE
  • GCT3 CROSSOVER – SOUTH END WALL > S
  • GCT3 CROSSOVER – OUTER FACE REBAR > NW
  • GCT3 CROSSOVER – NORTH END WALL > N
  • WB3 SUPPORT CLASS 3 SECTIONS > N
  • WC – SBOH – DRILLED REBAR DOWELS FOR COLUMNS > S
  • Completed excavation of the Westbound Bypass’ West Approach
  • ESA Caverns Drilling for Elevator Piston
  • ESA East Cavern SBOH
  • Mezzanine level precast beams being installation commenced
  • Subsurface construction of the future 48th Street Entrance
  • Wellway Lining
  • West Cavern – General View Looking North
  • West Cavern looking North
  • West Cavern North End

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