US Army Corps of Engineers
St. Paul District Website

Dredging Public Notices

Dredge Notice 14-15

Published Aug. 6, 2014

DN 14-15                                           DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: August 5th, 2014                             DREDGING CATEGORY: Emergency

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                          MEETING LOCATION:

 

DREDGE CUT NAME: Crats Island                                    RIVER MILE: 758.8 – 759.5

 

HISTORIC DATA

Frequency: 80%                                              Avg. Quantity/Job: 70,508 yd3

Date Last Dredged: July 28th, 2013                Avg. Quantity/Year: 56,086 yd3

 

SURVEY DATA

Date Surveyed: July 25th, 2014

Water Surface Elevation: 667.4

Low Control Pool Elevation: 666.5

Net Difference: +0.9’

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 200 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 24,837 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: August 5th, 2014

Estimated Duration: 3 dredging days

Justification for Dredging: The navigation channel is closed within the 9.0’ contours and closed within the 10.5’ contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Crats Island

Location: 4-759.3-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 the Channel Maintenance Coordinator at (651) 290-5154.


Dredge Notice 14-15

Published Aug. 6, 2014

DN 14-15                                           DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: August 5th, 2014                             DREDGING CATEGORY: Emergency

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                          MEETING LOCATION:

 

DREDGE CUT NAME: Crats Island                                    RIVER MILE: 758.8 – 759.5

 

HISTORIC DATA

Frequency: 80%                                              Avg. Quantity/Job: 70,508 yd3

Date Last Dredged: July 28th, 2013                Avg. Quantity/Year: 56,086 yd3

 

SURVEY DATA

Date Surveyed: July 25th, 2014

Water Surface Elevation: 667.4

Low Control Pool Elevation: 666.5

Net Difference: +0.9’

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 200 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 24,837 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: August 5th, 2014

Estimated Duration: 3 dredging days

Justification for Dredging: The navigation channel is closed within the 9.0’ contours and closed within the 10.5’ contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Crats Island

Location: 4-759.3-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 the Channel Maintenance Coordinator at (651) 290-5154.