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Dredging Notice 15-31 Island 126

Posted: 9/8/2015

Expiration date:


DN 15-31                                           DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: September 8th, 2015                       DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                          MEETING LOCATION:

 

DREDGE CUT NAME: Island 126                          RIVER MILE: 677.5 - 678.0

 

HISTORIC DATA

Frequency: 13%                                              Avg. Quantity/Job: 37,893 yd3

Date Last Dredged: August 18th, 2014          Avg. Quantity/Year: 5,052 yd3

 

SURVEY DATA

Date Surveyed: September 1st, 2015

Water Surface Elevation: 621.6

Low Control Pool Elevation: 619.3

Net Difference: +2.3’

5 Day River Forecast: Steady Incline

 

DREDGING DATA

Recommended Channel Width: 450 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 17,640 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: September 8th, 2015

Estimated Duration: 9 dredging days

Justification for Dredging: The navigation channel is restricted to 275 feet within the 9.0’ contours and closed within the 10.5’ contours. 

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Lansing Highway Bridge

Location: 9-663.5-LWP

Site Characteristics: This is a historically used permanent placement site.  Beneficial use restores capacity on a recurring basis; all material is expected to be removed. 

If you have any questions concerning this project, or if you would like to request an on‑site meeting, please contact the Channel Maintenance Coordinator at (651) 324-2050.

 

 

 

Dredge Island 126 Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers

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Dredging Notice 15-31 Island 126

Posted: 9/8/2015

Expiration date:


DN 15-31                                           DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: September 8th, 2015                       DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                          MEETING LOCATION:

 

DREDGE CUT NAME: Island 126                          RIVER MILE: 677.5 - 678.0

 

HISTORIC DATA

Frequency: 13%                                              Avg. Quantity/Job: 37,893 yd3

Date Last Dredged: August 18th, 2014          Avg. Quantity/Year: 5,052 yd3

 

SURVEY DATA

Date Surveyed: September 1st, 2015

Water Surface Elevation: 621.6

Low Control Pool Elevation: 619.3

Net Difference: +2.3’

5 Day River Forecast: Steady Incline

 

DREDGING DATA

Recommended Channel Width: 450 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 17,640 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: September 8th, 2015

Estimated Duration: 9 dredging days

Justification for Dredging: The navigation channel is restricted to 275 feet within the 9.0’ contours and closed within the 10.5’ contours. 

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Lansing Highway Bridge

Location: 9-663.5-LWP

Site Characteristics: This is a historically used permanent placement site.  Beneficial use restores capacity on a recurring basis; all material is expected to be removed. 

If you have any questions concerning this project, or if you would like to request an on‑site meeting, please contact the Channel Maintenance Coordinator at (651) 324-2050.

 

 

 

Dredge Island 126 Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers