News from: October 2017

Rainfall over the last three days from 70 to 100 millimetres has caused water levels typically seen in the spring in the Rideau watershed.

Flows rose dramatically from what they were going into the weekend after very little rain through September and most of October.

Operation of the Long Island Dam by Parks Canada staff slowed the increase of levels on the Long Reach. However, access roads to communities on the Rideau near Kemptville may still be threatened as the water from upstream passes through the system.

In Perth in the Tay Subwatershed, flooding has so far been limited to Stewart Park. Adjustments will be made as required at the construction site at Haggert Island Dam to accommodate increased flows.

Possibly those most affected by the heavy rains may be the farming community. With significant standing water left in fields, farmers may have difficulty removing the remaining crops. Rain forecast over the rest of the week will continue to cause problems getting on the fields.

The additional rain into next weekend can be expected to slow the recession of waters in streams such as Steven Creek. Residents in North Gower can expect to see the banks close to full through to next week.

Residents are advised to stay away from rivers as the forecasted weather may rapidly increase river flows, and cause slippery river banks. Parents are encouraged to explain these dangers to their children.

For water level and flow information in the Rideau system as well as the Ottawa River, visit the RVCA Streamflows and Water Levels webpage at: https://www.rvca.ca/watershed-monitoring-reporting/monitoring/surface-water-quantitiy

For more information about conditions on the Ottawa River, check the webpage of the Ottawa River Regulation Planning Board at http://ottawariver.ca/river-levels-flows.php#river-levels-flows-7-days .

 

(WCS - 40/2017)

 

 

 

Published in Media Release

Rainfall over the last three days from 70 to 100 millimetres has caused water levels typically seen in the spring in the Rideau watershed.

Flows rose dramatically from what they were going into the weekend after very little rain through September and most of October.

Operation of the Long Island Dam by Parks Canada staff slowed the increase of levels on the Long Reach. However, access roads to communities on the Rideau near Kemptville may still be threatened as the water from upstream passes through the system.

In Perth in the Tay Subwatershed, flooding has so far been limited to Stewart Park. Adjustments will be made as required at the construction site at Haggert Island Dam to accommodate increased flows.

Possibly those most affected by the heavy rains may be the farming community. With significant standing water left in fields, farmers may have difficulty removing the remaining crops. Rain forecast over the rest of the week will continue to cause problems getting on the fields.

The additional rain into next weekend can be expected to slow the recession of waters in streams such as Steven Creek. Residents in North Gower can expect to see the banks close to full through to next week.

Residents are advised to stay away from rivers as the forecasted weather may rapidly increase river flows, and cause slippery river banks. Parents are encouraged to explain these dangers to their children.

For water level and flow information in the Rideau system as well as the Ottawa River, visit the RVCA Streamflows and Water Levels webpage at: https://www.rvca.ca/watershed-monitoring-reporting/monitoring/surface-water-quantitiy

For more information about conditions on the Ottawa River, check the webpage of the Ottawa River Regulation Planning Board at http://ottawariver.ca/river-levels-flows.php#river-levels-flows-7-days .

 

(WCS - 40/2017)

 

 

 

Heavy rain forecast for today and overnight are expected to cause elevated water levels throughout the Rideau River watershed. 

With very little rain through September and October, flows on the Rideau system had fallen below the long term average for the time of year. As much as 100 millimetres of rain have been forecast for the next 24 hours. This amount of rain can be expected to raise water levels throughout the system. With the Rideau Lakes at winter levels, it is anticipated that there is capacity to accommodate the rain in the upper watershed with little impact. 

In the Tay Subwatershed, adjustments will be made to the construction area at Haggart Island Dam in Perth to accommodate increased flows.

However, the Long Reach of the Rideau between Long Island and Burritts Rapids was scheduled for the draw down to begin on October 30 and is still at navigation level. The rainfall forecast is similar to what fell on July 24, 2017 which means flooding can be expected in low lying areas. This could include access roads to small communities along the Long Reach as well as on Kemptville Creek downstream of Kemptville. 

As always, with levels up again in lakes, rivers and smaller streams, caution around the water for everyone is advised. 

For water level and flow information in the Rideau system as well as the Ottawa River, visit the RVCA Streamflows and Water Levels webpage at: https://www.rvca.ca/watershed-programs/reporting/streamflow-water-levels .

For more information about conditions on the Ottawa River, check the webpage of the Ottawa River Regulation Planning Board at http://ottawariver.ca/river-levels-flows.php#river-levels-flows-7-days

(WCS - 39/2017)  

 

 

October 27, 2017

Hearts Desire Project

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Construction To Begin!

Construction of the rocky ramp at the Hearts Desire Weir will begin on September 4, 2018.

Hearts Desire Weir

Located on the lower Jock River near Prince of Wales Drive, the Hearts Desire weir was built in 1975. The goal at the time was to provide higher summer flows, improve habitat for fish, ensure water for livestock and provide community ponds for fire protection and beautification. Since that time, conventional thinking regarding the environmental benefits of weirs has changed; and moreover, the weir has been identified as a safety concern to both staff who oversee its annual maintenance and to those who canoe and kayak in the river. 

In October 2017, the RVCA will begin the Hearts Desire Restoration Project that includes decommissioning the weir, construction of a rocky ramp and restoration of Jock River shoreline.  Read the Media Release

Note: during the rocky ramp construction phase (over two to three weeks) there will be no access to the park adjacent to the weir. Watch for construction details here.

Weir Decommissioning 

The existing concrete sill of the weir will remain in place. The steel I-beams will be cut off and the rocky ramp will be constructed over the concrete sill.

Decommissioning the weir will eliminate a risk to staff who are responsible for installing and removing the weir panels. It will also improve public safety by eliminating dangerous water conditions that can occur at the weir during high flows. Removal of I-beams will increase safety as they pose a risk to canoeists and kayakers when the weir panels are out.

Rocky Ramp Construction

Armour stone and boulders will be configured so that a centre channel is formed with pools and other features that support fish and fish migration. 

This innovative dam replacement option will help maintain upstream water levels that are important to the community and achieve several environmental improvements. The rocky ramp will help restore natural flow features and reduce erosion, allow for fish passage all year long through a centre channel, improve water quality and increase shoreline vegetation and habitat. 

Shoreline Restoration

RVCA is working with property owners to naturalize newly exposed shoreline areas. The goal is to re-vegetate and stabilize newly exposed shorelines with native species and manage invasive species. Once restored, this stretch of river will have a much healthier riparian zone, will be less prone to erosion and could be more esthetically pleasing without the seasonal variation in water levels that caused previous exposed shorelines.

The Hearts Desire project is made possible thanks to funding from the City of Ottawa, Fisheries and Oceans Canada, Muskies Canada and the Rideau Valley Conservation Authority. Thank you to local landowners for their cooperation and involvement in this project and to representatives from the Hearts Desire Community Association and the Stonebridge Community Association for worked successfully to bring everyone together to move this project forward.

For more information, contact Terry Davidson at terry.davidson@rvca.ca or 613-692-3571 ext. 1107 or Mike Yee at michael.yee@rvca.ca or 613-692-3571 ext.

 

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    Published in Special Projects

    OTTAWA, October 26, 2017 — After years of community consultation and long-standing safety concerns, the RVCA is decommissioning the Hearts Desire Weir and beginning work on a new rocky ramp. Work will begin on the project starting October 30 — weather permitting.

    Located on the lower Jock River near Prince of Wales Drive, the Hearts Desire weir was built in 1975. The goal at the time was to provide higher summer flows, improve habitat for fish, ensure water for livestock and provide community ponds for fire protection and beautification. Since that time, conventional thinking regarding the environmental benefits of weirs has changed; and moreover, the weir has been identified as a safety concern to both staff who oversee its annual maintenance and to those who canoe and kayak in the river.

    The weir will be replaced with a rocky ramp. This innovative dam replacement option will help maintain upstream water levels that are important to the community and achieve several environmental improvements. The rocky ramp will help restore natural flow features and reduce erosion, allow for fish passage all year long, improve water quality and increase shoreline vegetation and habitat.

    This rocky ramp is the first of its kind in Ottawa, but not the first in eastern Ontario. The Town of Perth is using a rocky ramp design to replace two dams in the middle of their community. One dam replacement was completed last fall and the second replacement is currently underway.

    “These rocky ramps allow for economical solutions when dealing with aging infrastructure,” says Terry Davidson, RVCA Director and Project Manager. “Replacing existing structures or bringing them to current safety standards makes them difficult to finance. Rocky ramps are a cost-effective solution that also benefits the environment by returning the river to a more natural state with riffles and pools.

    The Hearts Desire project is made possible thanks to funding from the City of Ottawa, Fisheries and Oceans Canada, Muskies Canada and the Rideau Valley Conservation Authority.

    During the construction phase (over two to three weeks) there will be no access to the park adjacent to the weir. Safety fencing will be erected. Drawdown of water levels started on October 10 as per normal fall operating procedures of the existing weir. This drawdown is also timely as it helps in preparation of upcoming work.

    Thank you to local landowners for their cooperation and involvement in this project and to representatives from the Hearts Desire Community Association and the Stonebridge Community Association for worked successfully to bring everyone together to move this project forward.

     

    Published in Media Release
    Page 1 of 2

    Contact Us

    Address:
    Rideau Valley Conservation Authority
    3889 Rideau Valley Drive
    Manotick, Ontario K4M 1A5

    Phone:
    613-692-3571, 1-800-267-3504

    Email:
    info@rvca.ca

    Hours:
    Monday to Friday, 8:30 a.m. to 4:30 p.m.

    Member of: conservation ontario