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Dredge

A detailed survey of a specific area (usually a 1 to 2 mile section) of the river. Dredge surveys can be split into two groups: pre-dredge surveys and post-dredge surveys. Pre-dredge surveys are analyzed to determine if dredging is required in a potentially problematic location. If dredging is required, these surveys are then used to layout the dredge cuts and to estimate the volume of material that will need to be moved. A post-dredge survey is completed after dredging has been completed in a specific location to ensure that the problematic area has been removed.

Upper Mississippi River : Miles 000-301
 
 

Lower Mississippi River, MRM 000-201

  - MRM 10: October 25, 2011
  - MRM 16: October 25, 2011
  - MRM 24: September 15, 2011
  - MRM 28: September 22, 2011
  - MRM 36: September 22, 2011
  - MRM 38: November 15, 2011
  - MRM 42: January 18, 2012 NEW
  - MRM 45-46: October 26, 2011
  - MRM 48: January 18, 2012 NEW
  - MRM 50: December 02, 2011
  - MRM 54: September 21, 2011
  - MRM 57: September 21, 2011
  - MRM 62-63 (Post Dredge): October 19, 2011
  - MRM 68: November 01, 2011
  - MRM 73: September 20, 2011
  - MRM 80: November 02, 2011
  - MRM 96: November 02, 2011
  - MRM 98: September 20, 2011
  - MRM 100-101: September 26, 2011
  - MRM 102-104 (Post Dredge): December 07, 2011NEW
  - MRM 111-113: September 26, 2011
  - MRM 116: December 09, 2011
  - MRM 120-123: September 28, 2011
  - MRM 124-126: September 27, 2011
  - MRM 128-130: September 27, 2011
  - MRM 156: October 18, 2011
  - MRM 160: October 18, 2011
  - MRM 161-162: October 20, 2011
  - MRM 169-171: January 23, 2012 NEW
  - MRM 171-174: November 17, 2011
  - MRM 174-177: November 23, 2011
  - MRM 177-180: November 28, 2011
  - MRM 183: February 02, 2012 NEW
  - MRM 184-185: November 11, 2011
  - MRM 184-185 (Old Channel): November 14, 2011
  - MRM 187-190: November 15, 2011
  - MRM 190-192: November 30, 2011
  - MRM 192-196: December 01, 2011
 
 

Melvin Price Pool, MRM 201-241
  - MRM 212-213 (Post): September 16, 2011
  - MRM 218-225: December 06, 2011
  - MRM 227: September 23, 2011
  - MRM 234-235: October 10, 2011
  - MRM 239-241: September 09, 2011
 
  Pool 25, MRM 241-273
  - MRM 241-243: September 06, 2011
  - MRM 250: August 23, 2011
  - MRM 251-252: October 24, 2011
  - MRM 252.5-255.3: August 15, 2011
  - MRM 255-256 (Post Dredge): October 12, 2011
  - MRM 260-261: October 12, 2011
  - MRM 266: September 16, 2011
  - MRM 268-270: October 11,2011
 
  Pool 24, MRM 273-301
  - MRM 274: September 12, 2011
  - MRM 289-290: September 27, 2011
  - MRM 294-295: July 28, 2011
  - MRM 294-298.5 : September 26, 2011
 
Illinois River : Miles 00-80
 
  - IRM 39-41: October 05, 2011
  - IRM 41.3-42.3: July 19, 2011
  - IRM 44-45: October 05, 2011
  - IRM 47-49: October 26, 2011
  - IRM 62-63: September 28, 2011
  - IRM 64-65: September 26, 2011
  - IRM 75-78 (Post Dredge): August 29, 2011
 
Kaskaskia River : Miles 00-36
 
  - KRM 00-00.8: October 13, 2011