US Army Corps of Engineers
St. Paul District Website

Dredging Public Notices

Dredge Notice 20-46 LD 4 Aux Lock

Published Nov. 2, 2020

DN 20-46                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: November 2nd, 2020           DREDGING CATEGORY: Routine

MEETING DATE: If requested                      MEETING TIME:

BOAT REQUIREMENT:                               MEETING LOCATION:

DREDGE CUT NAME: LD 4 Aux Lock Chamber    RIVER MILE: 752.7 – 752.9

 

HISTORIC DATA

Frequency: 20%                                             Avg. Quantity/Job: 4,770 yd3

Last Date Dredged: November 13th, 2019     Avg. Quantity/Year: 954 yd3

 

SURVEY DATA

Date Surveyed: October 27th, 2020

Water Surface Elevation: 666.0

Low Control Pool Elevation: 659.6

Net Difference: + 1.1

5-Day River Forecast: Holding Steady

 

DREDGING DATA

Recommended Channel Width: Chamber Width

Recommended Dredging Depth: 7 feet

Estimated Quantity: 1,486 yd3

Type of Dredge: Government Mechanical

Proposed Dredging Date: November 2nd, 2020

Estimated Duration: 5 dredging days

Justification for Dredging: Dredging is necessary to allow access for the emergency life boats and work boats to operate in this area.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Alma Marina

Location: 4-754.0-LWP

Site Characteristics: This is a historically used upland placement 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 20-46 LD 4 Aux Lock

Published Nov. 2, 2020

DN 20-46                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: November 2nd, 2020           DREDGING CATEGORY: Routine

MEETING DATE: If requested                      MEETING TIME:

BOAT REQUIREMENT:                               MEETING LOCATION:

DREDGE CUT NAME: LD 4 Aux Lock Chamber    RIVER MILE: 752.7 – 752.9

 

HISTORIC DATA

Frequency: 20%                                             Avg. Quantity/Job: 4,770 yd3

Last Date Dredged: November 13th, 2019     Avg. Quantity/Year: 954 yd3

 

SURVEY DATA

Date Surveyed: October 27th, 2020

Water Surface Elevation: 666.0

Low Control Pool Elevation: 659.6

Net Difference: + 1.1

5-Day River Forecast: Holding Steady

 

DREDGING DATA

Recommended Channel Width: Chamber Width

Recommended Dredging Depth: 7 feet

Estimated Quantity: 1,486 yd3

Type of Dredge: Government Mechanical

Proposed Dredging Date: November 2nd, 2020

Estimated Duration: 5 dredging days

Justification for Dredging: Dredging is necessary to allow access for the emergency life boats and work boats to operate in this area.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Alma Marina

Location: 4-754.0-LWP

Site Characteristics: This is a historically used upland placement 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.