Kenny will construct a one-mile, 18ft diameter (1.6km, 5.5m) concrete-lined rock tunnel located in the Albany Park neighborhood in the northwest side of Chicago. Scope of the work includes inlet and outlet shafts, the inlet structure on the North Branch of the Chicago River as well as the outlet structure on the North Shore Channel.
The project is intended to reduce surface flooding along the river by diverting excess storm water without affecting the river’s water level in normal times. Construction is scheduled to begin in late April and be completed in approximately two years.
MWH is providing design and engineering services for the project, and said the tunnel will go through bedrock and be around 120-150ft (36.5-45.7m) below grade.
