Vernon County
 

 

 

Land and Water Home

  Flood Control Structures
  P.L. 566 Coalitions
  Vernon County Dams
  Map Of Locations
  Flood Events
  Repair Projects
  Maintenance
  Warning System
  Rainfall and Pool Levels
  Vernon County Government
   
  Repair Projects:
  Jersey Valley
  Hidden Valley
  Seasbranch
  Yttri/Primmer
  Runge Hollow

 

Hidden Valley WF-04 Repair

Hidden Valley Damage Hidden Valley Damage
 

Hidden Valley Damage

The photos above show the round bales and debris that plugged the principle spillway inlet.  Over 116 round bales washed into the flood pool.  Inmates from the Prairie Du Chien Prison assisted in the cleanup.

The photo on the left shows the damage to the auxiliary spillway due to the increased flow from the plug. 

 
Hidden Valley Grouting

The photo on the left shows the grouting operation that was started in 2009 and finished in 2010. A grout curtain was installed beneath the left side of the dam in an effort to strengthen and secure the fractured sandstone bedrock. 

The photos below show the excavation and install of a graded relief drain designed to safely transfer any water that gets through the grout curtain away from the dam.  The repairs were completed in 2010 for a total of $571,524.31.00

   
Hidden Valley Repair Hidden Valley Repair