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  DN 17-07 Betsy Slough
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Dredge Notice 17-07 Betsy Slough

Posted: 5/12/2017

Expiration date:


DN 17-07                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: May 12th, 2017                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Betsy Slough                       RIVER MILE: 731.0 – 731.4

 

HISTORIC DATA

Frequency: 87%                                             Avg. Quantity/Job: 33,307 yd3

Date Last Dredged: August 30th, 2016           Avg. Quantity/Year: 29,055 yd3

 

SURVEY DATA

Date Surveyed: May 9th, 2017

Water Surface Elevation: 652.8

Low Control Pool Elevation: 649.9

Net Difference: +2.9

5 Day River Forecast: Steady Decline

 

DREDGING DATA

Recommended Channel Width: 500 feet

Recommended Dredging Depth: 13 feet

Estimated Quantity: 51,973 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: May 16th, 2017

Estimated Duration: 9 dredging days

Justification for Dredging: The navigation channel is restricted to 340 feet within the 10.5’ contours and restricted to 400 feet within the 9.0’ contours on a very sharp bend.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Wilds Bend

Location: 5A-730.5-LWT

Site Characteristics: This is a historically used temporary placement 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.

 

 

Betsy Slough Dredge Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers

ATTACHMENTS


  DN 17-07 Betsy Slough
Bookmark and Share Email Print


Dredge Notice 17-07 Betsy Slough

Posted: 5/12/2017

Expiration date:


DN 17-07                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: May 12th, 2017                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Betsy Slough                       RIVER MILE: 731.0 – 731.4

 

HISTORIC DATA

Frequency: 87%                                             Avg. Quantity/Job: 33,307 yd3

Date Last Dredged: August 30th, 2016           Avg. Quantity/Year: 29,055 yd3

 

SURVEY DATA

Date Surveyed: May 9th, 2017

Water Surface Elevation: 652.8

Low Control Pool Elevation: 649.9

Net Difference: +2.9

5 Day River Forecast: Steady Decline

 

DREDGING DATA

Recommended Channel Width: 500 feet

Recommended Dredging Depth: 13 feet

Estimated Quantity: 51,973 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: May 16th, 2017

Estimated Duration: 9 dredging days

Justification for Dredging: The navigation channel is restricted to 340 feet within the 10.5’ contours and restricted to 400 feet within the 9.0’ contours on a very sharp bend.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Wilds Bend

Location: 5A-730.5-LWT

Site Characteristics: This is a historically used temporary placement 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.

 

 

Betsy Slough Dredge Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers