Prior Lake Spring Lake Watershed District
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Posts tagged "outlet structure"

Low-flow gate closed

Posted by PLSLWD Staff - April 29, 2020 - News

Low-Flow Gate as it is being closed.

The low-flow gate on the Prior Lake Outlet Structure was closed this week. Prior Lake’s level was 902.61 feet above sea level and dropping as of April 29 and the District is required to close the low-flow gate by May 1.

The main gate of the outlet structure remains open as usual and water will continue to discharge from Prior Lake as long as the lake is above the elevation of the outlet’s weir at 902.5 feet above sea level. Current lake levels can be found here.

The low-flow gate was to opened in March to provide some extra storage on Prior Lake heading into the spring melt season. The District has permission from the Minnesota DNR to open the low-flow gate in March and April when necessary.

The low flow gate operates best when the lake level is between 902.0 and 903.0 and is managed based on the District’s outlet operations policy which is approved by the DNR. The Prior Lake Outlet Structure automatically stops discharging when the lake level drops below 902.5 feet.  When the low-flow gate is open, lake levels can drop slightly faster and to (no lower than) 902.0 feet. When the lake is above 903’, the low-flow gate is ineffective as the outlet pipe is limiting the amount of flow leaving the lake.

For more information on the outlet structure and the low-flow gate check out the StoryMap on our website here.

View Full Article Low Flow Gate, Prior Lake, low-flow gate, outlet structure

Low-flow gate open

Posted by PLSLWD Staff - March 10, 2020 - News, Prior Lake

The low flow gate on the Prior Lake Outlet Structure was fully opened this week to provide some extra storage on Prior Lake as we head into the spring melt season.

The low flow gate operates best when the lake level is between 902.0 and 903.0 and is managed based on the District’s outlet operations policy which is approved by the DNR. For more information on the outlet structure and the low-flow gate check out the StoryMap on our website here.

View Full Article Low Flow Gate, Lower Prior Lake, Prior Lake, Prior Lake Outlet, Prior Lake Outlet Structure, low flow, low-flow gate, outlet structure

Prior Lake outlet structure low-flow gate open

Posted by PLSLWD Staff - March 30, 2018 - News

In order to reduce flood potential, the Low-Flow Gate was opened on March 26, 2018 to create storage capacity in the lake for snow-melt and spring rains. The Low-Flow Gate will be closed when the lake reaches 902.0′ or on April 30, 2018; whichever comes first.

If you are interested in the approximate amount of flow discharging through the outlet structure when the Low-Flow Gate is open, click here. As usual, you can find current lake levels on the Prior Lake page of our website. Contact Jaime at jrockney@plslwd.org with questions.

Low-Flow Gate as it being opened.

View Full Article Low Flow Gate, Prior Lake, outlet structure

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Prior Lake – Spring Lake Watershed District

The District covers about 42 square miles in Scott County, MN. Water in the PLSLWD flows mainly from the southwest to the northeast through Spring, Upper Prior and Lower Prior Lakes, and then north through the Prior Lake Outlet Channel to the Minnesota River near Valley Fair amusement park.
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Prior Lake - Spring Lake Watershed District
4646 Dakota Street SE
Prior Lake, MN 55372

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