Burlington Skyway Wastewater Treatment Plant

The Burlington Skyway Wastewater Treatment Plant Phase II Expansion Project was an expansion to increase both the capacity and quality of the effluent.

The plant’s capacity was expanded from 118 to 140 ML/d. To achieve the capacity increase, new raw sewage pumps were installed along with new grit tanks, aeration tanks, and secondary clarifiers. The effluent from the secondary clarifiers then flows through to the tertiary building which utilizes UV and BACC process technology to increase the quality of the effluent that is discharged into Hamilton Harbor. In addition to the liquid portion of the treatment process, the existing bio-solids treatment expansion included new rotary drum thickeners, bio-filters, new boilers, and the expansion of the loading bays.

Given the close proximity of the project site to Lake Ontario and Burlington Bay, considerable dewatering (up to 20ML/D) was required for this project. Sheet pile shoring was utilized up to 8 meters in depth in some areas due to the limited workspace.

The Skyway Expansion project required a great deal of phasing and staged construction since the existing plant remained fully functional and operational throughout the entire expansion project.