Washington Street West watershed - City of Champaign

Draft ReportWest Washington Street Watershed Master Planimpervious area runoff. This pond, like the Alloy Casting Ponds, would lend itself to amultiple pond design and could serve as the dedicated West Washington Street trunksewer detention pond. There have been localized flooding in the immediate area and thelocation of this pond could also collect stormwater flows from the local sewers or theolder 18-inch storm sewer north of the West Washington Street trunk sewer.The drawbacks of this option are based on the location and proximity to the main surfaceflooding areas. This pond will not provide the desired relief to the upstream floodedintersections without new storm sewers to convey the large peak flows. The location isalso within a residential neighborhood and therefore would require the elimination ofabout 10 homes. Nearby homes could remain, but the desirability of the area maydecrease with the construction of this detention pond. Even with a vegetative barrier, thisarea will be a change from the existing neighborhood look. The other issue with thislocation is the limited footprint of this site. There are opportunities to expand this pondfurther north or locate the pond closer to the railroad tracks and expand across North FairStreet, but that would require the removal of even more homes.Robinson Court PondFigure 6-4Robinson Court PondSeptember 20096-7Clark Dietz, Inc.