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Dredge Notice 16-31 Lower Dresbach Island

Posted: 10/11/2016

Expiration date:


DN 16-31                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: October 11th, 2016                          DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Lower Dresbach Island       RIVER MILE: 703.0 - 703.5

 

HISTORIC DATA

Frequency: 50%                                             Avg. Quantity/Job: 17,206 yd3

Date Last Dredged: June 15th, 2016               Avg. Quantity/Year: 8,603 yd3

 

SURVEY DATA

Date Surveyed: October 6th, 2016

Water Surface Elevation: 638.8

Low Control Pool Elevation: 638.5

Net Difference: +0.3’

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 23,935 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: October 12th, 2016

Estimated Duration: 12 dredging days

Justification for Dredging: The navigation channel reduced to is 110 feet between the 9.0’ contours and is closed between the 10.5’ contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Dakota Island

Locations: 7-706.5-RMT

Site Characteristics: This is a historically used temporary placement island site.

 

If you have any questions concerning this project, or if you would like to request an on‑site meeting, please contact a Channel Maintenance Coordinator at (651) 290-5155.

 

 

 

Dredge Lower Dresbach Island Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers

Bookmark and Share Email Print


Dredge Notice 16-31 Lower Dresbach Island

Posted: 10/11/2016

Expiration date:


DN 16-31                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: October 11th, 2016                          DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Lower Dresbach Island       RIVER MILE: 703.0 - 703.5

 

HISTORIC DATA

Frequency: 50%                                             Avg. Quantity/Job: 17,206 yd3

Date Last Dredged: June 15th, 2016               Avg. Quantity/Year: 8,603 yd3

 

SURVEY DATA

Date Surveyed: October 6th, 2016

Water Surface Elevation: 638.8

Low Control Pool Elevation: 638.5

Net Difference: +0.3’

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 23,935 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: October 12th, 2016

Estimated Duration: 12 dredging days

Justification for Dredging: The navigation channel reduced to is 110 feet between the 9.0’ contours and is closed between the 10.5’ contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Dakota Island

Locations: 7-706.5-RMT

Site Characteristics: This is a historically used temporary placement island site.

 

If you have any questions concerning this project, or if you would like to request an on‑site meeting, please contact a Channel Maintenance Coordinator at (651) 290-5155.

 

 

 

Dredge Lower Dresbach Island Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers