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Storm drainage recovery and resiliency projects

Outfalls Repairs
After the June 2013 Flood, The City of Calgary inspected the Bow and Elbow Rivers and Fish, Nose and West Nose Creeks for significant damages to outfalls and riverbanks.

We identified 161 outfalls on the rivers and 53 outfalls on the creeks with damage and prioritized them for repairs.

About the projects

Repairs to outfalls include removing existing vegetation, grass and shrubs from the outfall. Replacement or repair of cracked concrete aprons.

Placement of bedding gravel and rip rap will be added to provide erosion protection for the outfall and the River or Creek. This also helps to reduce turbidity. The measurement of turbidity is a key test of water quality.

Current projects


As a part of our flood recovery work, we are repairing the following outfalls:

  • B32 - located on the right bank of the Bow River north of Riverfront Avenue S.E. and 3 Street S.E.
  • B34 - located on the right bank of the Bow River north of Riverfront Avenue S.E. and 1 Street S.E.
  • B36 - located on the right bank of the Bow River northwest of Riverfront Avenue S.W. and Centre Street
  • B68 - located on the right bank of the Bow River 500 m downstream of the Crowchild Trail Bridge
  • B69 – located on the right bank of the Bow River near Pumphouse Theatre and Bow River pathway.
  • B74 - located on the left bank of the Bow River west of Memorial drive N.W. and Crowchild Trail N.W.
  • B74A - located on the left bank of the Bow River southwest of Memorial drive N.W. and Crowchild Trail N.W.
  • B75 - located on the left bank of the Bow River south of Kensington Road N.W. and 25 Street N.W.
  • B77/78 - located on the left bank of the Bow River southwest of Parkdale Boulevard N.W. and 26 Street N.W.
  • B79 - located on the left bank of the Bow River south of the Parkdale Boulevard N.W. and 27 Street N.W.
  • E38 - located on the left bank of the Elbow River 70 m southwest of Elbow Drive S.W. and 29 Avenue S.W.
  • E40 - located on the right bank of the Elbow River, north of the pedestrian bridge, between Rideau Rd. S.W and Elbow Dr. S.W. just north of 32 Ave. S.W.
  • E43: located on the left bank of the Elbow River at the east end of 37 Avenue S.W.
  • E54 - located on the right bank of the Elbow River north of Riverdale Avenue S.W. and 8 Street S.W.
  • E63/E64 - located on the left bank of the Elbow River 850 m downstream of the Glenmore Dam
  • N10 - located on the right bank of Nose Creek under the 16 Avenue N.E. bridge
  • N41 - located on the right bank of Nose Creek under the Country Hills Boulevard N.E. bridge