US Army Corps of Engineers
St. Paul District Website

Dredging Public Notices

Dredge Notice 19-13 Crats Island

Published June 1, 2019

DN 19-13                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: June 1st, 2019                                  DREDGING CATEGORY: Emergency

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Crats Island                         RIVER MILE: 758.8 – 759.2

 

HISTORIC DATA

Frequency: 80%                                             Avg. Quantity/Job: 67,411 yd3

Date Last Dredged: September 19th, 2018     Avg. Quantity/Year: 53,654 yd3

 

SURVEY DATA

Date Surveyed: May 28th, 2019

Water Surface Elevation: 672.1

Low Control Pool Elevation: 666.5

Net Difference: +5.6’’

5 Day River Forecast: Slight Decline

 

DREDGING DATA

Recommended Channel Width: 450 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 80,343 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: June 1st, 2019

Estimated Duration: 10 dredging days

Justification for Dredging: The navigation channel is closed between the 9.0’ and the 10.5’ contours. On a recommended bend width of 450’.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Crats Island

Location: 4-759.3-LWT

Site Characteristics: This is a historically used island transfer 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 19-13 Crats Island

Published June 1, 2019

DN 19-13                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: June 1st, 2019                                  DREDGING CATEGORY: Emergency

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Crats Island                         RIVER MILE: 758.8 – 759.2

 

HISTORIC DATA

Frequency: 80%                                             Avg. Quantity/Job: 67,411 yd3

Date Last Dredged: September 19th, 2018     Avg. Quantity/Year: 53,654 yd3

 

SURVEY DATA

Date Surveyed: May 28th, 2019

Water Surface Elevation: 672.1

Low Control Pool Elevation: 666.5

Net Difference: +5.6’’

5 Day River Forecast: Slight Decline

 

DREDGING DATA

Recommended Channel Width: 450 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 80,343 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: June 1st, 2019

Estimated Duration: 10 dredging days

Justification for Dredging: The navigation channel is closed between the 9.0’ and the 10.5’ contours. On a recommended bend width of 450’.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Crats Island

Location: 4-759.3-LWT

Site Characteristics: This is a historically used island transfer 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.