US Army Corps of Engineers
St. Paul District Website

Dredging Public Notices

Dredge Notice 20-07 Grand Encampment

Published May 1, 2020

DN 20-07                                           DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: May 1st, 2020                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                          MEETING LOCATION:

DREDGE CUT NAME: Grand Encampment           RIVER MILE: 755.7 – 756.8

 

HISTORIC DATA

Frequency: 68%                                                          Avg. Quantity/Job: 46,051 yd3

Date Last Dredged: June 19th, 2019                           Avg. Quantity/Year: 31,315 yd3

 

SURVEY DATA

Date Surveyed: April 29th, 2020

Water Surface Elevation: 666.9

Low Control Pool Elevation: 666.3

Net Difference: +0.6’

5 Day River Forecast: slight rise

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 11 feet

Estimated Quantity: 64,197 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: May 3rd, 2020

Estimated Duration: 8 dredging days

Justification for Dredging: The navigation channel reduced to 120’ between the 9.0’ contours and closed between the 10.5’ contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Grand Encampment

Location: 4-756.5-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 call a dredging manager at (651) 290-5155.

 

 

 


Dredge Notice 20-07 Grand Encampment

Published May 1, 2020

DN 20-07                                           DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: May 1st, 2020                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                          MEETING LOCATION:

DREDGE CUT NAME: Grand Encampment           RIVER MILE: 755.7 – 756.8

 

HISTORIC DATA

Frequency: 68%                                                          Avg. Quantity/Job: 46,051 yd3

Date Last Dredged: June 19th, 2019                           Avg. Quantity/Year: 31,315 yd3

 

SURVEY DATA

Date Surveyed: April 29th, 2020

Water Surface Elevation: 666.9

Low Control Pool Elevation: 666.3

Net Difference: +0.6’

5 Day River Forecast: slight rise

 

DREDGING DATA

Recommended Channel Width: 300 feet

Recommended Dredging Depth: 11 feet

Estimated Quantity: 64,197 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: May 3rd, 2020

Estimated Duration: 8 dredging days

Justification for Dredging: The navigation channel reduced to 120’ between the 9.0’ contours and closed between the 10.5’ contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Grand Encampment

Location: 4-756.5-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 call a dredging manager at (651) 290-5155.