Credit Valley Conservation Aquatic Restoration Team is pleased to announce that the construction phase for Mill Creek Weir Removal project is complete.
The in-stream concrete weir was creating a barrier for fish passage, placing a sensitive population of Brook Trout in Orangeville at risk. Matrix Solutions Inc. created a design to remove the concrete weir and improve the stream’s natural geomorphology by adding a riffle. Through this process, we discovered that private utilities (water & hydro) ran underneath the creek about 5-7m upstream of the weir. They included these utilities into the design as they were only 0.8m below the creek bed and at risk for exposure during erosion processes. We made the decision to lower the utilities below the scour limit (2.5m) in order to protect them after the weir was removed. We hired Cambridge Landscaping and Construction Ltd to complete the construction. Construction was completed within 2 weeks and resulted in: 25m of stream restored, 60 shrubs planted, 1 barrier removed, and reconnected 5km of upstream habitat for brook trout and other fish species.
ORA is pleased to report that we were a funding partner in this Project!
Dear Ministers Guilbeault, Wilkinson and Champagne,
ORA understands the urgency in fulfilling the vitally important commitment the government has made to cut GHG emissions to 40-45% below 2005 levels by 2030; however, we will present evidence from independent third-party peer-reviewed studies indicating that an effective path to decarbonization is not through hydropower.
Watch our video to understand how hydroelectricity is greenwashed by Ontario Power Generation as “clean” and “non-emitting” when there are hundreds of independent third-party studies to the contrary. Read our full submission here!
Please sign and share our petition to protect Ontario Rivers and send OPG a strong message!
There are very few thriving Brook Trout populations left in southern Ontario, and it is especially surprising to find them present as far south as London, Ontario. Brook Trout are a sentinel species – the canary in the coal mine. In southern Ontario, Brook Trout populations have seen an 80% decline in their numbers over the last 50 years. Their populations have been under increasing pressure from a warming climate as well as agricultural, urban, rural and industrial development.
Removing the Dam and headpond to create a free-flowing and healthy coldwater Brook Trout fishery would be the perfect place for a family to go for walk, play or picnic in the Embro Conservation Area. It would provide a healthy riverine ecosystem and a beautiful natural environment for the entire community to enjoy!!
The ORA is pleased to partner with Credit Valley Conservation (CVC) in the Mill Creek Weir Removal Project. Mill Creek is home to an at-risk population of native Brook Trout, and the weir is a barrier to fish passage and prime habitat. Mill Creek is the lowest dam before its confluence with the Credit River.
The concrete weir is broken and cracked, and if individuals from the Brook Trout population were to breach the weir, they could be permanently trapped in a small pool on the other side, with no way back. Removing the weir will remove this hazard, open up 5 km of uninterrupted Brook Trout habitat, and increase Mill Creek’s resilience to a warming climate. The ORA applied for and received a $5,000 Lush grant towards the new detailed channel design. Continue reading →
It is challenging to understand the logic of a November 2021 CBC article that reports, “The Nature Conservancy and the World Wildlife Fund are two environmental groups that oppose new hydro dams because they can block fish migration, harm water quality, damage surrounding ecosystems and release methane and CO2. But they say adding turbines to non-powered dams can be part of a shift toward low-impact hydro projects that can support expansion of solar and wind power.” Whether it’s a new dam or an older retrofitted dam, they will result in the same negative impacts and produce the same amount of methane for 70 to 100 years or more.