US Army Corps of Engineers
St. Paul District

Dredging Public Notices

Dredge Notice 19-36 Lower Approach LD 6

Published Aug. 1, 2019

DN 19-36                                           DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: August 1st, 2019                                         DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                             MEETING TIME:

BOAT REQUIREMENT:                                                      MEETING LOCATION:

DREDGE CUT NAME: Lower Approach LD 6                   RIVER MILE: RM 713.5 – 714.1

 

HISTORIC DATA

Frequency: 33%                                              Avg. Quantity/Job: 21,628 yd3

Last Date Dredged: August 27th, 2018          Avg. Quantity/Year: 7,062 yd3

 

SURVEY DATA

Date Surveyed: July 30th, 2019

Water Surface Elevation: 642.6

Low Control Pool Elevation: 638.5

Net Difference: +4.1’

5 Day River Forecast: Steady Decline

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 61,764 yd3 plus placement access 41 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: August 1st, 2019

Estimated Duration: 15 – 24 hour dredging days

Justification for Dredging:  The entire approach area is closed between the 9’ contours once the water levels are down to LCP.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Trempealeau Placement Site

Location: 7-714.1-LWP

Site Characteristics: This is a historically used beneficial use stockpile site.  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 call a dredging manager at (651) 290-5155.

 

 


Dredge Notice 19-36 Lower Approach LD 6

Published Aug. 1, 2019

DN 19-36                                           DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: August 1st, 2019                                         DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                             MEETING TIME:

BOAT REQUIREMENT:                                                      MEETING LOCATION:

DREDGE CUT NAME: Lower Approach LD 6                   RIVER MILE: RM 713.5 – 714.1

 

HISTORIC DATA

Frequency: 33%                                              Avg. Quantity/Job: 21,628 yd3

Last Date Dredged: August 27th, 2018          Avg. Quantity/Year: 7,062 yd3

 

SURVEY DATA

Date Surveyed: July 30th, 2019

Water Surface Elevation: 642.6

Low Control Pool Elevation: 638.5

Net Difference: +4.1’

5 Day River Forecast: Steady Decline

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 61,764 yd3 plus placement access 41 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: August 1st, 2019

Estimated Duration: 15 – 24 hour dredging days

Justification for Dredging:  The entire approach area is closed between the 9’ contours once the water levels are down to LCP.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Trempealeau Placement Site

Location: 7-714.1-LWP

Site Characteristics: This is a historically used beneficial use stockpile site.  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 call a dredging manager at (651) 290-5155.