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Upper Plateau Separation Project


What is the Upper Plateau Separation project

The Upper Plateau Separation project is a capital project that will help reduce river flood risk complications caused by storm water flow in the communities of Hillhurst/Sunnyside. The project will specifically target the Upper Plateau stormwater that currently flows in the lower plateau.

What are the benefits?

This work will allow us to better capture and divert storm water, prepare for and respond to climate change, better prepare for future development. This work will also help to decrease pressure in pipes which will reduce leakage, frequency of breaks and bursts, maintenance costs, electricity costs and GHG emissions.

Where is the Upper Plateau?

The Upper Plateau Separation covers a 527 ha area in central northwest Calgary. Portions of the study are within the floodplain of the Bow River which makes them vulnerable to flooding from high river levels and rainfall events. The study area is bounded by 24 Avenue N.W. to the north, 3 Street N.W. to the east, 19 Street N.W./Capitol Hill Crescent to the west and the Bow River to the south.

Upper Plateau Separation

When will work begin?

Preliminary work will begin with geotechnical drilling which will take place from November 19 to 31.

What is geotechnical drilling?

Geotechnical drilling is a way for us to analyze the site. This work will help us determine whether or not this site is going to be appropriate for construction. We will drill and collect rock and soil samples which will help us assess soil stability. This work will require a drilling rig to be on-site.

Upper Plateau - Geotechnical Drilling Map 

How can you get involved?

Citizen engagement opportunities are being planned and an update will be provided in 2019.