ComEd - TSS 167 Cyrus One Yorkville - Sewer

2026-11-03

The CyrusOne Yorkville TSS - 167 Expansion Civil Subgrade project consists of comprehensive site preparation , earthwork , drainage , and erosion control construction to support the expansion and reconfiguration of the ComEd substation . Work includes clearing and grubbing of designated areas , removal of existing fencing , and grading to establish the new switchyard , access road profiles , and stormwater basins as shown in the plans . The contractor will perform subgrade preparation , undercutting , stabilization , and placement of aggregate surfacing throughout the yard , along with installation of a complete storm sewer system including RCP pipe , catch basins , underdrains , flared end sections , and riprap outfalls . Erosion and sediment control measures — such as silt fence , inlet protection , ditch checks , and soil stabilization — must be implemented and maintained throughout construction . Upon completion of major earthwork and drainage improvements , all disturbed areas outside the fenced yard will be restored with topsoil , seed , and erosion control blanket in accordance with the project specifications ComEd standards and the issued drawings .

Illinois

2026-05-09