Proposed Bowness flood barrier groundwater study update

Submitted by The City of Calgary

As part of the engineering studies in Phase I of the proposed Bowness flood barrier, The City is continuing to study groundwater and what mitigation options may be feasible.

This fall, we will be performing a geophysical survey to explore the geology of the area in greater detail. This includes determining the thickness of gravel and depth to bedrock near the proposed barrier alignment.

The survey will focus on two locations in the community. Access to private property is not required.

  • Within the road right-of-way on the south side of Bow Village Crescent, and

  • Public lands on the right bank of the Bow River from the CP rail tracks to the Shouldice Bridge.

By gathering data from two different areas, we will be able to compare how the geology changes from the river to Bow Crescent. Please see the opposite page for a map of the proposed test areas and typical property line location on the south side.

Geophysical survey details The investigation will take place from Sept. 30 – Oct. 7 and will be done during regular business hours (Monday to Friday; 8 a.m. – 5 p.m.).

The results from this study, along with information we have gathered from boreholes and monitoring wells in the area, will be used to understand the geology and groundwater conditions in the area and to evaluate mitigation options.

Learn more

Come to a demo On September 29 from 2 p.m. – 5 p.m. join us at John Hextall park located at 5820 Bow Crescent, where you can watch how the tests will be performed, see examples of data that we will be gathering and speak with members of the project team.

If you’re unable to make it, but have questions about this work, or would like more information please contact 311 or email bownessbarrier@calgary.ca.

Potential geophysical survey impacts Efforts are being made to minimize disruption to the community.

The survey will not damage the grass along the right-of-way.

Construction mats will be installed on top of cables when we need to temporarily cross a section of driveway on the City right-of-way, so that residents can enter and exit their property freely. Crews will also be available to help direct traffic if required.

We thank you in advance for your patience as we complete this important work.

Read the full writeup from the City and see images of the proposed assessment locations here.