For construction of the narrow, 100-ft-deep drop shaft at CSO 18, PERI provided a unique radial design using its CB Climbing Formwork and BR Platforms.

Anacostia River Tunnel Project
Washington D.C., United States

  • The 23-ft-diameter, 12,500-ft-long Anacostia River Tunnel is the second portion of DC Water’s 20-year Clean Rivers Project
  • The tunnel is lined with six-segment pre-cast concrete rings, but the project’s six shafts, four diversion structures, and three adits are cast-in-place concrete

Contractor
Impregilo, Healy, Parsons JV

 

 

Location
Washington D.C.

The Project

Impressions from the project process

Project Information

PERI provided great versatility and repeatability for our Diversion Structure, which had many different elements and lift heights while being able to reuse and cycle material from the bottom to the top.
PERI provided great versatility and repeatability for our Diversion Structure, which had many different elements and lift heights while being able to reuse and cycle material from the bottom to the top.
Rob Brunner
Superintendent
PERI provided great versatility and repeatability for our Diversion Structure, which had many different elements and lift heights while being able to reuse and cycle material from the bottom to the top.

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For construction of the narrow, 100-ft-deep drop shaft at CSO 18, PERI provided a unique radial design using its CB Climbing Formwork and BR Platforms.
For construction of the narrow, 100-ft-deep drop shaft at CSO 18, PERI provided a unique radial design using its CB Climbing Formwork and BR Platforms.