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  DN 17-01 Coulters Island
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Dredge Notice 17-01 Coulters Island

Posted: 4/6/2017

Expiration date:


DN 17-01                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: April 4th, 2017                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Coulters Island                    RIVER MILE: 801.5 – 801.9

 

HISTORIC DATA

Frequency: 49%                                             Avg. Quantity/Job: 26,360 yd3

Date Last Dredged: Oct. 26th, 2016               Avg. Quantity/Year: 12,899 yd3

 

SURVEY DATA

Date Surveyed: April 3rd, 2017

Water Surface Elevation: 674.6

Low Control Pool Elevation: 673.9

Net Difference: +0.7

5-Day River Forecast: holding steady

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 11 feet

Estimated Quantity: 24,020 yd3 - Includes 102 yd3 for access dredging at Corps Island

Type of Dredge: Contract Mechanical

Proposed Dredging Date: April 7th, 2017

Estimated Duration: 12 dredging days

Justification for Dredging: The navigation channel is restricted to 220 feet between the 9.0’ contours and closed between the 10.5’ contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Corps Island

Location: 3-799.2-RMT

Site Characteristics: This is a historically used transfer site.

 

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

 

 

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

ATTACHMENTS


  DN 17-01 Coulters Island
Bookmark and Share Email Print


Dredge Notice 17-01 Coulters Island

Posted: 4/6/2017

Expiration date:


DN 17-01                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: April 4th, 2017                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Coulters Island                    RIVER MILE: 801.5 – 801.9

 

HISTORIC DATA

Frequency: 49%                                             Avg. Quantity/Job: 26,360 yd3

Date Last Dredged: Oct. 26th, 2016               Avg. Quantity/Year: 12,899 yd3

 

SURVEY DATA

Date Surveyed: April 3rd, 2017

Water Surface Elevation: 674.6

Low Control Pool Elevation: 673.9

Net Difference: +0.7

5-Day River Forecast: holding steady

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 11 feet

Estimated Quantity: 24,020 yd3 - Includes 102 yd3 for access dredging at Corps Island

Type of Dredge: Contract Mechanical

Proposed Dredging Date: April 7th, 2017

Estimated Duration: 12 dredging days

Justification for Dredging: The navigation channel is restricted to 220 feet between the 9.0’ contours and closed between the 10.5’ contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Corps Island

Location: 3-799.2-RMT

Site Characteristics: This is a historically used transfer site.

 

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

 

 

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