Displaying items by tag: rideau lakes

Sept. 3, 2019 — The RVCA and its partners are angling to help walleye stocks recover in Wolfe Lake.

With a generous grant from the TD Friends of the Environment Fund, RVCA staff teamed up with volunteers from the Wolfe Lake Association and the Westport Area Outdoors Association to create two new spawning beds on Scanlan Creek at the end of August.

Walleye stocks have been falling across Ontario, and in Wolfe Lake the population is noticeably on the decline, according to lake association fishing director Margie Manthey.

“The depletion began in the 1980s and 1990s,” said Manthey, who hasn’t missed a summer on the lake since 1978. While she admitted she’s no biologist, she said general consensus is that “road culverts installed 30 or 40 years ago on Scanlan Creek excised kilometres worth of spawning habitat.”

Walleye like to spawn at the same spot every year, and in Scanlan Creek those breeding grounds are now upstream of several culverts that are filled with rushing spring runoff during spawning season. This has effectively cut the fish off from their breeding grounds, according to RVCA aquatic biologist Jennifer Lamoureux, who said the rushing water is too fast to fight.

Where there once might have been dozens of breeding adults counted in the spring, this year local landowners only spotted a few.

To fix this, Lamoureux designed two new spawning beds downstream of the culverts.

“Some may still try to spawn upstream, but these downstream spawning beds mean they have the appropriate habitat if the spring freshet is a strong one,” Lamoureux said.

Staff and 30 volunteers spent two days at the end of August building the new beds. The first day, volunteers installed nets to block and relocate nearly 1,100 fish and other aquatic creatures from the construction zone. The next day, they worked tirelessly to place 70 tonnes of six-inch round river stone in the creek, passing them down the line by hand to cover the river bottom.

The project was the brainchild of Manthey and Don Goodfellow of the Westport Area Outdoors Association, who worked together to develop a Scanlan Creek rehabilitation proposal for the RVCA. It required buy-in from members of both community groups, as well as approval from landowner Bill Blaney, who has owned this section of the creek for the past 12 years.

Blaney said he was happy to help, not only because it’s restoring the creek back to balance, but because he’s noticed a decline at the end of his fishing line.

“I used to catch a fish every second cast, and I could count on getting one or two in a trip. Now there are many times we get skunked,” Blaney said.

He said he hopes to see more walleye on his property as early as two years from now. For more information, visit https://www.rvca.ca/wolfe-lake-scanlan-creek-fish-habitat-enhancement-project.

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Updated Flood Outlook & Flood Watch: Rain in Forecast Will Cause Water Levels to Increase Again Across the Rideau Valley Watershed

(WCS – R05/2020) March 27, 2020 –The short-term forecast is calling for rainfall amounts of 35 millimetres or more on Sunday and into Monday with above zero temperatures. As such, water levels and flows across the Rideau Valley Watershed are expected to increase again.

A FLOOD WATCH is being issued for properties around Christie Lake and Wolfe Lake. In these areas, residents should expect freshet like water levels and flows. Parks Canada staff are closely monitoring the water levels in Bobs Lake and Christie Lake, and operations at the Bolingbroke Dam.

A FLOOD WATCH continues for the low-lying areas along Stevens Creek and Taylor Drain in the Village of North Gower; however, water levels are expected to be less than those that have already been seen this spring.

A FLOOD OUTLOOK is being maintained/issued for the following areas:

• Properties around Bob’s Lake and Tay River in the upper Rideau Valley Watershed. In these areas, residents should expect spring like water levels and flows. Parks Canada staff are closely monitoring the water levels in Bobs Lake and Christie Lake, and operations at the Bolingbroke Dam will take place as required, to balance the levels in Bobs Lake and Christie Lake.
• Properties around the Long Reach (Burritts Rapids to Kars) of the Rideau River.
• Properties around the smaller creeks and streams in the lower Rideau Valley Watershed, including the low-lying roads and waterfront properties adjacent to the Jock River (near Richmond).
• Any connected creeks or ditches.

Extreme caution should be exercised by everyone when near local waterbodies. Please note that riverbanks are very slippery at this time of year and it’s quite easy for a child or adult to inadvertently fall into the water. Parents should inform their children of the risks and provide appropriate supervision.

Residents in flood prone or low-lying areas, historically susceptible to flooding, should continue to take the necessary precautions to protect their property, such as:

• Ensuring sump pump is clear, in good working condition and has a backwater valve
• Ensuring easy access to a portable backup generator and pump
• Ensuring downspouts are clear and the outlet is at least 3 metres from the dwelling
• Securing items that might float away as flows increase
• Removing valuable items from basements or lower floors that could be subject to flooding
• Keeping emergency phone numbers handy
• Familiarizing yourself with your municipality’s Emergency Preparedness Plan

This watershed conditions statement is in effect until April 9, 2020, at 5 p.m. and will be updated at that time unless the forecast or conditions change.

"Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed created under the Conservation Authorities Act to deliver a range of programs in watershed management and natural resource conservation."

 RVCA Watershed Conditions Statements:

• Water Safety – High flows, unstable banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.
• Flood Outlook – Early notice of the potential for flooding based on weather forecasts, calling for heavy rain, snow melt, high winds or other conditions that could lead to high runoff, cause ice jams and/or lakeshore flooding or erosion.
• Flood Watch – Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individuals in flood prone areas should prepare.
• Flood Warning – Flooding is imminent or already occurring in specific watercourses or municipalities.

RIDEAU VALLEY WATERSHED, April 28, 2023 – Work is underway to collect flood hazard data on four upper watershed lakes. 

Beginning this May, the Rideau Valley Conservation Authority (RVCA) will be collecting important data that will inform future flood mapping projects on Lower Rideau, Big Rideau, Bobs and Otty Lakes, in co-operation with local municipalities. RVCA has contracted Water’s Edge Environmental Solutions Team to be on the lakes throughout the Spring and Fall of 2023.

This data collection is the first phase of a larger initiative to complete natural hazard mapping around the lakes. Water’s Edge will survey topography surrounding the lakes to verify recent LiDAR analyses, lake bathymetry, bridges, culverts, and nearby channel cross-sections while also documenting and assessing land uses, precipitation, historic high water marks, and water levels and flows. They will also document water control structures, their operating policies and their operational history. The data will be analysed in future projects to develop robust hazard mapping reports. 

The RVCA received $160,000 in funding from the federal Flood Hazard Identification and Mapping Program (FHIMP) to cover up to half of the project’s total cost. The funding program was announced in 2022 to increase the number and quality of publicly accessible flood maps across Canada as extreme weather drives more severe flooding in communities across the country.

Mapping the flood hazards in these lakes will reduce impacts on people and property by promoting responsible land use planning, directing development away from flood prone areas and enhancing the RVCA’s flood forecasting and warning program. 

While the surveyors will likely not need to access private property to carry out their work, they will be visibly active on the lakes during shoulder seasons throughout 2023. Waterfront residents can expect to see their boat moving slowly along shorelines and sometimes weaving back and forth to collect lakebed data. They may also be spotted on roadsides as they document bridges, culverts and other man-made structures. 

Conservation Authorities are responsible for mapping natural hazards including flooding under the Conservation Authorities Act. While many urban parts of the Rideau Valley watershed have been mapped over the past 60 years, this is the first time these lakes are being formally mapped for flood hazards. 

The hazard maps will also help RVCA comment on municipal planning files with respect to their impact on flooding, erosion and other natural hazards, and will help direct development away from floodplains and hazard areas in our own permitting program for work near watercourses and wetlands. 

To learn more about our hazard mapping program visit https://www.rvca.ca/watershed-monitoring-reporting/reporting/flood-risk-mapping-reports.

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