The Village of Manhattan awarded a $202,203.95 contract Feb. 4 to Allston Tyler for phase one of the Tres Street drainage project, intended to improve stormwater handling in the Mahan proper area.

Clerk and staff told trustees there were four bidders on phase one ranging from about $202,000 to $361,000; Allston Tyler submitted the low bid of $202,203.95. During discussion engineering staff and trustees reviewed how runoff will be routed through a reshaped dry retention pond and balance with existing ponds in the Leland Bridal subdivision. Staff said HR Green performed the drainage calculations and that the pond will be sized in accordance with Illinois drainage requirements. They also noted the village may install a restrictor to limit outflow during a large event.

Trustees approved the resolution awarding the bid by roll call with all present voting yes. Board members said the project had been under discussion for several years and stressed the importance of tight engineering to avoid downstream impacts. The contract award moves the project into an initial construction phase; additional phases and engineering details remain to be completed.