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Dredge Notice 16-32 Below Winona RR Bridge

Posted: 10/14/2016

Expiration date:


DN 16-32                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: October 14th, 2016                          DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Below Winona RR Bridge  RIVER MILE: 723.0 – 723.7

 

HISTORIC DATA

Frequency: 46%                                             Avg. Quantity/Job: 25,578 yd3

Date Last Dredged: June 17th, 2016               Avg. Quantity/Year: 11,677 yd3

 

SURVEY DATA

Date Surveyed:  October 11th, 2016

Water Surface Elevation: 646.5

Low Control Pool Elevation: 644.6

Net Difference: +2.1

5 Day River Forecast:  Slow Decline

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 15,253 yd3

Type of Dredge: Government Mechanical

Proposed Dredging Date: October 17th, 2016

Estimated Duration: 12 dredging days

Justification for Dredging: The navigation channel is reduced to 270’ between the 9’ contours and closed between the 10.5’ contours.

  

MATERIAL PLACEMENT DATA

Proposed Placement Site: Winona Harbor

Location: 6-726.0-LMP

Site Characteristics: This is a historically used upland placement site and 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 a Channel Maintenance Coordinator at (651) 290-5155.

 

 

 

 

Below Winona RR Bridge Dredge Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers

Bookmark and Share Email Print


Dredge Notice 16-32 Below Winona RR Bridge

Posted: 10/14/2016

Expiration date:


DN 16-32                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: October 14th, 2016                          DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Below Winona RR Bridge  RIVER MILE: 723.0 – 723.7

 

HISTORIC DATA

Frequency: 46%                                             Avg. Quantity/Job: 25,578 yd3

Date Last Dredged: June 17th, 2016               Avg. Quantity/Year: 11,677 yd3

 

SURVEY DATA

Date Surveyed:  October 11th, 2016

Water Surface Elevation: 646.5

Low Control Pool Elevation: 644.6

Net Difference: +2.1

5 Day River Forecast:  Slow Decline

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 15,253 yd3

Type of Dredge: Government Mechanical

Proposed Dredging Date: October 17th, 2016

Estimated Duration: 12 dredging days

Justification for Dredging: The navigation channel is reduced to 270’ between the 9’ contours and closed between the 10.5’ contours.

  

MATERIAL PLACEMENT DATA

Proposed Placement Site: Winona Harbor

Location: 6-726.0-LMP

Site Characteristics: This is a historically used upland placement site and 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 a Channel Maintenance Coordinator at (651) 290-5155.

 

 

 

 

Below Winona RR Bridge Dredge Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers