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  DN 16-27 Betsy Slough
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Dredge Notice 16-27 Betsy Slough

Posted: 8/29/2016

Expiration date:


DN 16-27                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: August 29th, 2016                           DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Betsy Slough                       RIVER MILE: 731.1 – 731.4

 

HISTORIC DATA

Frequency: 87%                                             Avg. Quantity/Job: 32,221 yd3

Date Last Dredged: April 16th, 2016              Avg. Quantity/Year: 28,018 yd3

 

SURVEY DATA

Date Surveyed: August 17th, 2016

Water Surface Elevation: 650.7

Low Control Pool Elevation: 649.9

Net Difference: +0.8

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 500 feet

Recommended Dredging Depth: 13 feet

Estimated Quantity: 21,428 yd3

Type of Dredge: Government Mechanical

Proposed Dredging Date: August 30th, 2016

Estimated Duration: 11 dredging days

Justification for Dredging: The navigation channel is reduced to 395 feet between the 9.0’ contours and reduced to 355 feet between the 10.5’ contours on a recommended bend width of 500’.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Fountain City 1 Site

Location: 5A-731.9 LWP

Site Characteristics: This is a historically used upland placement site.  All material is anticipated to be removed. 

 

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 16-27 Betsy Slough
Bookmark and Share Email Print


Dredge Notice 16-27 Betsy Slough

Posted: 8/29/2016

Expiration date:


DN 16-27                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: August 29th, 2016                           DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Betsy Slough                       RIVER MILE: 731.1 – 731.4

 

HISTORIC DATA

Frequency: 87%                                             Avg. Quantity/Job: 32,221 yd3

Date Last Dredged: April 16th, 2016              Avg. Quantity/Year: 28,018 yd3

 

SURVEY DATA

Date Surveyed: August 17th, 2016

Water Surface Elevation: 650.7

Low Control Pool Elevation: 649.9

Net Difference: +0.8

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 500 feet

Recommended Dredging Depth: 13 feet

Estimated Quantity: 21,428 yd3

Type of Dredge: Government Mechanical

Proposed Dredging Date: August 30th, 2016

Estimated Duration: 11 dredging days

Justification for Dredging: The navigation channel is reduced to 395 feet between the 9.0’ contours and reduced to 355 feet between the 10.5’ contours on a recommended bend width of 500’.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Fountain City 1 Site

Location: 5A-731.9 LWP

Site Characteristics: This is a historically used upland placement site.  All material is anticipated to be removed. 

 

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