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Click HERE to view the activity at the City of Jefferson Fish Ladder

The information below is being provided as a service for those who are interested in the river level in the City of Jefferson.  

Per DNR mandate, the City of Jefferson must maintain the river level between a minimum headwater of 782.0 and maximum headwater of 783.0.  (United States Geologic Service (USGS) Elevation).  There is a corresponding gauge on the Rock River Dam in the City of Jefferson used to measure the water level. 

Gate adjustment is determined by headwater elevation and flowage upstream.  For more information on upstream water levels and flow Click Here. 

Date Time East Gate Status West Gate Status Headwater Comment
9/30/2005 8:00 am   CLOSED 782.3 Fishway in Operation
1/06/2006 11:40 am   Opened 0.33' 783.15 West Gate up 4"
1/16/2006 12:00 pm   CLOSED 782.9 West Gate Closed
1/30/2006 8:00 am   Opened 0.33' 783.25 West Gate Opened 4"
2/27/2006 1:30 pm   CLOSED 782.5 West Gate Closed
3/9/2006 3:45 pm   Opened 0.33' 783.0 West Gate Opened 4"
3/13/2006 8:45 am   Opened 3.0' 783.3 West Gate Opened 3.3'

5/2/2006

9:30am

  

Closed 2.0'

782.9

West Gate Opened 1.25'

5/8/06

1:30 pm

   CLOSED 782.9

West Gate Closed
5/10/06 1:00 pm   Opened 783.1 West Gate Opened 0.25'
5/15/06 9:00 am   Opened 3.0' 783.2 West Gate Opened 3.25’,  1160cfs
5/27/06 1:15 pm   Closed 1.0' 783.0 West Gate Opened 2.25’,  940cfs    
6/7/06 8:15 am   Closed 1.0' 783.0 West Gate Opened 1.25’, 850cfs  
6/12/06 8:45 am   Closed 1.25' 782.9 West Gate Closed, 560cfs  
9/13/06 11:45 am   Opened 4.5' 783.5 West Gate Wide Open, 5" Rain 9/12
9/14/06 8:00 am   Closed 2.25' 783.0 West Gate Closed 2.25'
9/14/06 4:30 pm   Closed 1.0' 783.0 West Gate Open 1.25'
9/15/06 10:00 am   Closed 0.75' 783.00 West Gate Open 0.5', 500cfs
10/4/06 11:30 am   Opened 3.5' 783.0 West Gate Opened 3.5', 600cfs
10/6/06 8:00 am   Closed 1.0' 783.0 West Gate Opened 2.5', 600cfs
10/9/06 8:00 am   Closed 2.5' 783.0 West Gate Closed
10/23/06 8:00 am   Opened 2.5' 783.0 West Gate Opened 2.5'
10/24/06 1:30 pm   Closed 1.0' 783.0 West Gate Open 1.5'
10/30/06 8:00 am   Closed 1.5' 782.9 West Gate Closed
11/13/06 8:00 am   Opened 2.0' 783.0 West Gate Open 2.00', 600cfs
11/20/06 2:00 pm   Closed 2.0' 783.0 West Gate Closed
11/29/06 2:30 pm   Opened 2.25' 783.0 West Gate Open 2.25'
12/4/06 1:24 pm   Closed 1.0' 783.0 West Gate Open 1.25'
12/18/06 2:00 pm   Closed 1.25' 783.0 West Gate Closed
12/22/06 9:45 am   Opened 1.25' 783.0 West Gate Opened 1.25'
12/28/2006 3:00 pm   Opened 2.0' 783.0 West Gate Open 3.25'
1/17/2007 4:00 pm   Closed 2.0' 782.6 West Gate Closed
3/12/2007 11:30 am   Opened 4.0' 782.8 West Gate Open 4.0'
5/8/2007 4:00 pm   Closed 1.0' 783.0 West Gate Open 3.0'
5/14/2007 9:15 am   Closed 0.75' 783.0 West Gate Open 2.25'
5/21/2007 8:30 am   Closed 2.25' 782.7 West Gate Closed
6/4/2007 12:15 pm   Opened 1.25' 783.0 West Gate Open 1.25'
6/13/2007 11:45 am   Closed 1.25' 783.0 West Gate Closed
8/20/2007 7:30 am   Opened 3.5' 783.0 West Gate Opened 3.5'
8/22/2007 2:30 pm   Opened 1.0' 783.6 West Gate Fully Open
9/11/2007 1:30 pm   Closed 2.0' 783.0 West Gate Open 2.5'
9/13/2007 8:00 am   Closed 1.0' 783.0 West Gate Open 1.5'
9/17/2007 8:15 am   Closed 1.5' 782.85 West Gate Closed
1/7/2008 8:30 am   Opened 3' 783.0 West Gate Opened 3'
1/8/2008 9:00 am   Opened 1.5' 783.0 West Gate Fully Open
5/20/2008 12:30 pm   Closed 3' 782.8 West Gate Open 1.5'
5/23/2008 12:00 pm   Closed 1.5' 783.0 West Gate Closed
6/5/2008 12:15 pm   Opened 2.0' 783.0 West Gate Open 2.0'
6/8/2008 12:30 pm   Opened 2.5' 784.0 West Gate Fully Open
7/31/2008 10:30 am   Closed 4.5' 782.6 West Gate Closed
12/30/2008 4:15 pm   Opened 2.4' 783.9 West Gate Open 2.4'
1/2/2009 8:00 am   Closed 1.6' 783.0 West Gate Open 0.8'
2/11/2009 8:30 am   Opened 2.4' 783.6 West Gate Opened 3.2'
3/9/2009 1:00 pm   Opened 2.0' 784.8 West Gate Opened 5.2'
6/8/2009 10:00 am   Closed 3.5' 782.5 West Gate Opened 1.7'
6/12/2009 3:40 pm   Open 2.0' 783.2 West Gate Opened 3.7'
6/19/2009 6:50 am   Open 1.2' 783.4 West Gate Open 4.9'
6/25/2009

 

  8:30 am -9:15 am   East Gate Closed for maintenance (Revised) – Returned to fixed location    
7/1/2009 9:45 am   Closed 2.0' 782.6 West Gate Open 2.9'
7/1/2009 4:30 pm   Closed 2.0' 782.6 West Gate Open 0.9'
7/3/2009 9:15 am   Closed 0.9' 782.9 West Gate Closed
10/29/2009 8:45 am   Open 1.2' 783.2 West Gate Open 1.2'
1/26/2010 11:15 am   Open 2.0' 783.3 West Gate Open 3.2'
2/21/2010 3:15 pm   Closed 2.7' 781.9 West Gate Open 0.5'
3/10/2010 5:15 pm   Open 1.6' 783.5 West Gate Open 2.1'
3/11/2010 7:15 am   Open 2.9' 783.6 West Gate Open 5.0'
5/26/2010 7:55 am   Closed 3.5' 783.0 Temporary East Gate Closure - Maintenance
5/26/2010 11:45 am   Opened 3.1' 783.1 Maintenance Operations Complete
5/27/2010 10:15 am Fixed Open Closed 2.4' 782.9 West Gate Open 2.6
5/29/2010 8:45 am Fixed Open Closed 2.6' 782.9 West Gate Closed
5/29/2010 8:30 pm Fixed Open Open 1.2' 783.2 West Gate Open 1.2'
6/4/2010 8:30 pm Fixed Open Open 1.2' 783.2 West Gate Open 1.2'
6/7/2010 1:00 pm Fixed Open Open 2.0' 783.4 West Gate Open 3.2'
6/14/2010 2:45 pm Fixed Open Closed 2.0' 782.7 West Gate Open 1.2'
6/22/2010 9:00 am Fixed Open Open 2.0' 783.5 West Gate Open 3.2'
6/23/2010 10:30 am Opened 0.8' Opened 2.4' 784.0 East Gate Open 3.9', West Gate Open 5.6' (West Fully Open)
7/7/2010 8:15 am Unchanged - Open 3.9' Closed 3.9' 782.7 East Gate Open 3.9'; West Gate Open 1.7'
7/15/2010 5:45 am Unchanged - Open 3.9' Open 3.1' 783.5 East Gate Open 3.9'; West Gate Open 4.8'
7/23/2010 7:00 am Unchanged - Open 3.9' Open 0.8' 784.7 East Gate Open 3.9'; West Gate Open 5.6' (West Gate Fully Open)
8/23/2010 3:15 pm Unchanged - Open 3.9' Closed 3.1' 783.0 East Gate Open 3.9'; West Gate Open 2.5'
9/1/2010 5:10 am Unchanged - Open 3.9' Closed 1.6' 782.8 East Gate Open 3.9'; West Gate Open 0.9'
10/4/2010 3:00 pm Unchanged - Open 3.9' Closed 0.9' 782.6 East Gate Open 3.9'; West Gate Closed
10/29/2010 4:30 pm Unchanged - Open 3.9' Opened 2.4' 783.5 East Gate Open 3.9'; West Gate Open 2.4'
11/12/2010 10:30 am Unchanged - Open 3.9' Closed 2.4' 782.8 East Gate Open 3.9'; West Gate Closed
12/9/2010 10:30 am Unchanged - Open 3.9' Opened 1.6' 783.2 East Open 3.9'; West Open 1.6'
3/1/2011 11:00 am Unchanged - Open 3.9' Opened 3.9' 783.4 East Open 3.9'; West Open 5.5' (Fully Open)
5/19/2011 3:00 pm Closed 0.8' - Open 3.1' Unchanged - Open 5.5' 783.4 East Open 3.1'; West Open 5.5' (Fully Open)****
6/3/2011 8:30 am Unchanged - Open 3.9' CLOSED 5.5' 782.8 East Open 3.9'; West Gate Fully CLOSED
6/10/2011 2:15 pm Unchanged - Open 3.1' OPEN .8' 783.3 East Open 3.1'; West Gate Open 0.8'
11/11/2011 7:45 am Unchanged - Open 3.1' OPENED 3.1' 783.5 East and West Gate Open 3.1'
11/22/2011 2:45 pm Unchanged - Open 3.1' OPENED 1.6' 782.8 East Gate Open 3.1', West Gate Opened 1.6'**
1/6/2012 2:45 pm Unchanged - Open 3.1' Closed 3.1' 782.2 East Gate Open 3.1’; West Gate Opened 1.6'
           

**  Dam Opened Additional to Facilitate Upstream Boat Launch Project - Dam Operating Within DNR Regulation

**** Both Gates Closed Completely and Reopened for Maintenance Operations.

PLEASE NOTE THAT THE EAST GATE IS OUT OF COMMISSION FOR FISH PASSAGE.