Drainage

Storms during the spring of 2013 served as a powerful reminder of the need for adequate roadway underpass drainage.

The design for the new Rollins Road and IL Rte. 83 intersection had to take into account the new lower elevation of the roadway and the history of flooding in the area. The new design includes an efficiently designed and comprehensive storm sewer system to carry storm water off of the pavement. New detention ponds southwest of the intersection will improve the storage capacity of the system during heavy rains.

A key aspect of the design is that all storm sewers will be gravity fed. No pumping station will be required to drain water from the underpass, removing the risk of failure.

drainage rendering