DESCRIPTION OF THIS PROJECT. This agreement encompasses the design of the proposed roadway, multi-use trail and/or sidewalk(s), and drainage work necessary to complete Des. Xx. 0000000 Xxxx Xxxxxx from east edge of pavement of Columbia/Sheffield Avenue to the west bridge approach to the bridge over Xxxx Ditch as shown in Exhibit A. Due to the limited change in elevation throughout the corridor, conveyance of drainage for the majority of the project may include roadside ditches with possible curb turnouts directly discharging into roadside ditches. Existing drainage patterns will be perpetuated where feasible and the overall stormwater management plan will incorporate stormwater best management practices where feasible. However, storm sewer may be required in some locations. Proposed ditches will be evaluated and bioswales and plantings may be proposed. The project will discharge to the Xxxx Ditch, a Lake County regulated drain. Additionally, the ditch along the north and south side of Main Street just west of Xxxx Ditch are included on the FEMA flood maps as a floodplain. A Waters of the US Determination Report services for surface waters and wetlands will be provided for the project. The Waters of the US Determination will be based on DLZ’s best judgment based on the guidelines set forth by the US Army Corps of Engineers for determining the jurisdictional status of surface waters and wetlands. If wetlands are identified, a routine wetland delineation will be performed. Main Street will follow the existing roadway alignment within these project limits, a centerline distance of 4,000 feet. The design speed of Main Street will be 35 mph. The design criteria used for Main Street for this project will be partial 4R, Minor Arterial. It is intended that Main Street will be a complete street with a minimum two-lane roadway. Depending upon the outcome of the roadway configuration study and public outreach meeting, the corridor may include a combination of pedestrian sidewalks, a bike lane, and/or a separate multi-use path. A raised, concrete median island may be placed with gaps at roadway approaches. If a multi-use path is selected during the roadway configuration study and public outreach meeting, a new 8- foot wide concrete multi-use path with 2-foot wide aggregate shoulders will be designed along the north or side of Main Street within the project limits. New asphalt approaches with concrete curb and gutter will be proposed at the “S-Lines” of Fillmore Avenue, Wellington Drive, and Cobble...
