Aquatic Habitat (creek geometry, fish barriers)
- Very little natural creek geometry remaining, except for some stretches above and below Shade’s Mills
- Major pond and reservoir, Grandy’s and Shade’s Mills
- Channelized and armoured sections in Cambridge
- Pressurized concrete culvert in downtown Cambridge a barrier to fish
- Shade’s Mills reservoir a barrier to fish
- Grandy’s Pond a barrier to trout moving upstream from Cedarbrook Tributary
- Opportunities to restore meander pattern in selected locations above Shade’s Mills reservoir
- Opportunities to restore riffle/pool sequences in selected locations above Shade’s Mills Pond
- Grandy’s Pond and Shade’s Mills Reservoir not conducive to trout habitat
- Trout population in Cedarbrook Tributary isolated and do not appear to inhabit Central channel
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Figure 32. Before discharging to the Grand River,
the Creek disappears into a boxed culvert in downtown Cambridge
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Water Quality & Quantity (erosion, sedimentation, pollutants)
- Considerable storm-water sedimentation entering creek near Samuelson & Elgin Streets
- Point bars and centre bars from road sand between Franklin and Elgin Streets
- Localized bank erosion between Franklin and Elgin Streets
- Likely urban contaminants, such as road salt, oils, etc. entering creek near Samuelson & Elgin Streets and possibly other locations
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- Limited information on the inventory of all storm water outlets that impact creek
- Limited information on the inventory of all catch basins and other sources of entry for stormwater and contaminants discharging to creek. See Map Figure 33 » which is a more detailed illustration of the watershed boundary in Cambridge.
- Some erosion risk at Grandy’s Pond if subjected to variations in water levels during extreme flows
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