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Additional Sewer & Water Conveyance Projects
Milwaukee Deep Tunnel Project
Milwaukee, Wisconsin
Project Description
Lachel & Associates, Inc. held primary responsibility for planning and
interpreting all geology, rock mechanics, and soil mechanics investigations on this
large regional sewer project which includes over 50 miles of tunnels, with up to 30
miles of tunnel greater than 30 ft. in diameter at depths of over 250 ft.
Scope of Services
Lachel's senior personnel designed all site investigation and laboratory testing
techniques and were responsible for the interpretation of the resulting data,
including geology, ground response to shafting and tunneling, groundwater inflow
estimating and control, stand-up time, ground support requirements, and
constructibility evaluations. Other Lachel personnel served as senior reviewers,
project managers, and members of the Quality Assurance Review Board.
Client
Milwaukee Sanitary District
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