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Riding Mountain National Park of Canada

McKinnon Creek culvert - Rehabilitation photos

April 2011: McKinnon Creek at west end of culvert. Water flowing over intact dam for reservoir.
April 2011
June 15/11: Debris piled against culvert. Water still flowing in culvert.
June 15
June 16/11: 24 hours after a major storm removed the small reservoir and overflowed McKinnon Creek.
June 16 - a

Reservoir gone and mouth of culvert obscured.
June 16 - b
Depth of erosion along culvert.
June 16 - c
Erosion at the base of T bar towers.
June 16 - d

McKinnon Creek’s new stream bed.
June 16 - e
With the completion of the stream stabilization in August 2011, McKinnon Creek presents tremendous experiences for visitors to site and for future opportunities at Mount Agassiz.
June 16 - f
Aerial view of erosion along McKinnon Creek.
June 28

July 12 - August 3: Fescue grass that was planted by park staff on July 12 in our test section has germinated and doing quite well.
July 12 - August 3
August 2/2011: The removal of the damaged culvert needed to be done in a manner that minimized further down stream erosion during the rehabilitation effort. A temporary dam was created to pump water around the work site.
August 2 - a
Pumps designed with fish screens prevent injury.
August 2 - b

The top of the culvert has been removed (close to 100 metres). Note the culvert is packed full of shale.
August 2 - c
August 3/2011: The culvert is pulled out in sections approximately 10 m long.
August 3 - a
This is a view down the length of the channel. The banks are being sloped according to our specification and the stream bed needs to be reconstructed in a fish friendly way with the design of riffles, resting pools, boulder placement, etc. to enhance fish movement in this reach of creek.
August 3 - b

The discharge from the pumps is being managed to avoid further erosion.
August 3 - c
The shale is removed before the culvert is pulled out. Some of the coarser shale will be reused in rebuilding the streambed.
August 3 - d
August 22: Installing Erosion Control Blanket.
August 22

August 23: Looking downstream from dam.
August 23 - a
August 23: Looking downstream.
August 23 - b
Date Modified 2011-11-04
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