Outfall repair program

Outfall Repair Program

About the program

The City’s Outfall Repair Program repairs aging and damaged outfalls that take stormwater from rainfall or snowmelt into Calgary’s rivers. There are more than 800 outfalls located across the city.

This work is beneficial because damaged outfalls can lead to storm drain backups during heavy rainfall events resulting in impacts to both public and private property and the safety of citizens.

A damaged outfall could also lead to riverbank erosion and cause damage to infrastructure like pathways, sidewalks, roads and private property, especially in the event of a flood.

 

Project Updates

February 2025

The repair work in 2025 will involve the remaining eight locations along the Western Headworks Canal.

Crews are continuing construction on outfalls IC16, IC17, IC18, IC19, IC10A, and IC12, which started in late December and January. Construction for outfalls IC10 and IC13 is scheduled to begin in mid-to-late February.

Repairs to outfalls IC1, IC2, IC4 and IC9 are complete. Landscaping work will be done in the spring.

Work at these outfalls includes reconnecting pipes that have separated over time, installing new riprap to reduce the water’s force before entering the canal and restoring any areas on the slope that get disturbed during construction.

outfall map

Click on the map to download

This information has no legal status and cannot be used as an official interpretation of the various bylaws, codes and regulations currently in effect. The City of Calgary accepts no responsibility to persons relying solely on this information. Web pages are updated periodically. ​

undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null,undefined/null