Outlet Channel

Maintaining an unimpeded flow from Big Marine Lake through Little Carnelian Lake and the outlet pipe to the St. Croix River is a critical responsibility of the Watershed District.  CMSCWD was formed to reduce the threat of flooding in Big Marine and Carnelian Lakes and the solution was the result of many years of study of the causes to these water fluctuations.  Some of the reports that examine the causes of these water fluctuations are:

The range of elevations that the District maintains is a result of negotiations with riparian property owners and the Department of Natural Resources to both protect property and protect wetlands within the watershed.  The only variable in the system is an adjustable weir downstream of the fixed outlet and Turtle Lake.  The current management plan for the weir has evolved over the years and was approved by the Board of Managers on April 12, 2017 after receiving considerable public input. The management plans are available for review here, from the current plan to the original management plan:

                       

Big Marine Lake Outlet Elevations

Yellow designates at or over weir elevation

(Turtle Lake Stop Log status)

  fixed Weir Overflow elevation is 940.8 feet

Date

Upstream of Weir

Downstream of Weir 

April 11 941.01 940.46  (all stop logs out)
April 25 941.17 941.02
May 4 941.17 941.01
May 14 941.07 940.44
May 23 940.97 940.24
May 30 941.05 940.54
June 5 941.01 940.54
June 15 940.91 940.3 (both sets stop logs in)
June 21 941.01 940.81
June 27 941.01 940.88
June 28   (1 side/ both stop logs out)
July 3 941.01 940.82
July 12 940.93 940.54
July 19 941.02 941   (both sets of stop logs out)
July 30 940.89 940.6
August 7 940.93 940.4
August 20 940.75 940.2   (both sets of stop logs in)
2017 Data
2016 Data

Pages 22 through 29 in Section IV of the Management Plan discusses the maintenance activities in further detail.  A history of water elevations of Big Marine Lake is available here.

The following is a log of this year's maintenance activites for Carnelian Creek (Big Marine Outlet Channel) and Silver Creek.  Most of the activities are directed toward the former: The 2016 Maintenance Log is available here.

Task Date Duration Location
Turtle Lake Report 1/11/2017 1:00 Office
Kelly Farm and Big Marine Water Levels 2/14/2017 1:00  
Big Marine Docs 2/27/2017 1:00 Office
Big Marine Docs 2/27/2017 1:30 Office
Water Levels 3/3/2017 2:00  
Update Website- Marine outlet 3/6/2017 1:30 Office
Big Marine Memo 3/8/2017 3:00 Office
South Twin 3/10/2017 1:00  
Review Docs 3/13/2017 1:30 Office
Turtle Lake memo 3/14/2017 3:30 Office
Inspection to Little CArnelian 3/20/2017 2:00  
update web 3/21/2017 0:30 Office
Turtle Lake Weir 3/23/2017 1:00  
Inspection Little Carnelian flow and Silver Creek/ Carol Lake 3/23/2017 1:30  
Turtle Lake Weir 3/23/2017 0:30  
Inspection- Talk with Steve Grogan 3/27/2017 2:00  
Big Marine Research 3/28/2017 3:00 Office
Meeting Prep 3/30/2017 2:30 Office
South Twin Culvert 3/31/2017 0:30  
Mike Ripley 4/1/2017 1:00  
Erik from MnDOT 218-684-0649 4/7/2017 0:15  
Carol Lake Culvert/120th St. Ponds 4/10/2017 2:30  
channel maintenance- South Twin and Carol Beavers 4/19/2017 2:00  
South Twin and Carol Lake 4/24/2017 1:00  
South Twin and Big Marine 4/25/2017 0:30  
Water Levels and Channel Maintenance at Kelly and District 5/2/2017 2:00 Kelly and District
Water Levels-District 5/10/2017 1:00  
Survey to Carl 5/12/2017 1:00 Office
Call Roger re: 715-417-1943 5/12/2017 0:15 Office
Carnelian Creek cleaning prep 5/16/2017 1:00 Office
Big Marine Elevations 5/17/2017 0:15  
Carnelian Creek - Silt Curtain and channel marking 5/19/2017 1:30  
Carnelian Creek Clean up crew 5/20/2017 1:30  
Water Levels- Kelly Farm 5/22/2017 1:00  
Carnelian Creek Inspection after clean-up 5/22/2017 1:00  
Big Marine Followup 5/22/2017 1:00 Office
water levels- Big Marine- Sand and Hay Lakes- IESF 5/23/2017 1:00  
Water levels- District 5/24/2017 1:30  
water levels- District 5/30/2017 2:30  
UPdating Website 5/31/2017 1:00 Office
Kelly Farm 6/5/2017 2:00  
Beaver Dam s. of May Ave 6/12/2017 2:30  
Water Levels- Little Carnelian South Twin 6/13/2017 1:00  
Water levels- South Twin, Carol Lake, Big Marine 6/20/2017 1:00  
Water levels district wide 6/29/2017 2:30  
Big Marine Water Levels 7/6/2017 0:30  
Coontail at BM outlet 7/6/2017 0:30 BM outlet
Big Marine Outlet 7/10/2017 0:30  
Water Levels in the District-  7/11/2017 2:00  
Kelly Farm and Tache re: storm damage 7/12/2017 2:30  
Roger Tache- downed trees 7/13/2017 1:00  
Square Lake stand pipe 7/13/2017 0:30  
Kelly Farm road clearing and inpsection 7/24/2017 3:30  
kelly farm inpsection- wood bridge coontail 7/27/2017 0:30  
Roger Rydeen at Tache's 7/31/2017 1:00 Tache's
Website update 7/31/2017 0:30 Office
Tache and Kelly Farm, Zack Cole 8/1/2017 1:30  
Fran Miron letter 8/1/2017 0:30 Office
Water Levels 8/2/2017 1:00  
Roger Rydeen and Tache 8/2/2017 1:30  
Washington County re: 155th access 8/7/2017 0:30  
Tony Frattalone  8/7/2017 2:00  
Big Marine Levels 8/14/2017 0:30  
Water Levels- District 8/16/2017 2:30  
Tony frattalone 8/17/2017 0:30  
Kelly Farm 8/21/2017 1:30  
Water Levels- District 8/22/2017 1:30  
Levels at Big Marine 8/29/2017 0:30 Big Marine
Kelly Farm 8/30/2017 1:00  
Frattalone 9/3/2017 1:30  
Water Levels at May Ave and Big Marine 9/5/2017 1:00 May Ave and Big Marine
Road Maintenance to Narrows 9/8/2017 3:00 Kelly Farm
placing boards at Turtle Lake- 2 sets 9/14/2017 1:00  
Kelly Farm- Check channel and Weir 9/15/2017 2:30  
Turtle Lake Weir water levels 9/20/2017 0:30  
Water Levels- District 9/20/2017 1:00  
Kelly Farm water elevations 10/4/2017 1:00  
channel maintenance- Frattalone invoices 10/20/2017 0:30  
check water levels 10/26/2017 0:30  
water levels Little Carnelian Carol Lake 10/27/2017 1:30  
Big Marine Water Levels 11/8/2017 0:30  
Little Carnelian Outlet Maintenance 11/28/2017 1:00  
Little C. Outlet cleanout 12/4/2017 1:00  
Little Carnelian 12/5/2017 0:30  
Total    108:15 Hours

Some other documents and reports dealing with the Big Marine Outlet Channel are listed below: