DN 23-27                                            DREDGING NOTICE

                                              U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

NOTICE DATE: July 28^th, 2023                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                 MEETING TIME:

BOAT REQUIREMENT:                                          MEETING LOCATION:

DREDGE CUT NAME: Petersons Bar                      RIVER MILE: MN River 11.8 – 12.6

HISTORIC DATA

Frequency: 62%                                              Avg. Quantity/Job: 18,568 yd³

Last Date Dredged: September 22^nd, 2022     Avg. Quantity/Year: 11,561 yd³

SURVEY DATA

Date Surveyed: July 24^th, 2023

Water Surface Elevation: 686.9

Low Control Pool Elevation: 686.8

Net Difference: +0.1’

5 Day River Forecast: holding steady

DREDGING DATA

Recommended Channel Width: 100 feet

Recommended Dredging Depth: 11 feet

Estimated Quantity: 18,723 yd³

Type of Dredge: Contract Mechanical Plant 2

Proposed Dredging Date: July 28^th, 2023

Estimated Duration: 10 dredging days

Justification for Dredging:  The navigation channel is reduced to 90’ between the 9.0’ contours and closed between the 10.5’ contours.

MATERIAL PLACEMENT DATA

Proposed Placement Site: Cargill East River

Location: MN-14.1-RMP

Site Characteristics: This is an upland beneficial use stockpile site provided to the Corps by the Lower MN River Watershed District. 

If you have any questions concerning this project or want to request an on‑site meeting please call a dredging manager at (651) 290-5155.