US Army Corps of Engineers
St. Paul District Website

Dredging Public Notices

Dredge Notice 17-27 Head of Raft Channel

Published July 28, 2017

DN 17-27                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: July 28th, 2017                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Head of Raft Channel         RIVER MILE: 687.7 – 688.1

 

HISTORIC DATA

Frequency: 49%                                             Avg. Quantity/Job: 37,328 yd3

Last Date Dredged: August 30th, 2016           Avg. Quantity/Year: 18,267 yd3

 

SURVEY DATA

Date Surveyed: July 27th, 2017

Water Surface Elevation: 630.2

Low Control Pool Elevation: 629.7

Net Difference: +0.5’

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 400 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 30,547 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: July 28th, 2017

Estimated Duration: 4 dredging days

Justification for Dredging: The navigation channel is reduced to 320 feet between the 9.0’ contours and reduced to 180 feet between the 10.5’ contours, on a recommended bend of 400’. 

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Brownsville

Location: 8-688.7-RMP

Site Characteristics: This is a historically used beneficial use stockpile site. We expect all material to be removed.

 

If you have any questions concerning this project, or if you would like to request an onsite meeting, please call a Channel Maintenance Coordinator at (651) 290-5155.

 

 

 

 


Dredge Notice 17-27 Head of Raft Channel

Published July 28, 2017

DN 17-27                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: July 28th, 2017                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Head of Raft Channel         RIVER MILE: 687.7 – 688.1

 

HISTORIC DATA

Frequency: 49%                                             Avg. Quantity/Job: 37,328 yd3

Last Date Dredged: August 30th, 2016           Avg. Quantity/Year: 18,267 yd3

 

SURVEY DATA

Date Surveyed: July 27th, 2017

Water Surface Elevation: 630.2

Low Control Pool Elevation: 629.7

Net Difference: +0.5’

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 400 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 30,547 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: July 28th, 2017

Estimated Duration: 4 dredging days

Justification for Dredging: The navigation channel is reduced to 320 feet between the 9.0’ contours and reduced to 180 feet between the 10.5’ contours, on a recommended bend of 400’. 

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Brownsville

Location: 8-688.7-RMP

Site Characteristics: This is a historically used beneficial use stockpile site. We expect all material to be removed.

 

If you have any questions concerning this project, or if you would like to request an onsite meeting, please call a Channel Maintenance Coordinator at (651) 290-5155.