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Dredging Notice 15-38 Freeborn Light

Posted: 10/15/2015

Expiration date:


DN 15-38                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

NOTICE DATE: October 15th, 2015                          DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Freeborn Light                    RIVER MILE: 818.2 – 818.8

HISTORIC DATA

Frequency: 27%                                             Avg. Quantity/Job:  37,914 yd3

Date Last Dredged:  August 26th, 2014          Avg. Quantity/Year:  10,110 yd3

SURVEY DATA

Date Surveyed: October 8th, 2015

Water Surface Elevation: 686.7

Low Control Pool Elevation: 686.2

Net Difference: + 0.5’

5-Day River Forecast: Holding Steady

DREDGING DATA

Recommended Channel Width: 400 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 18,722 yd3, Access dredging: 284 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: October 16th, 2015

Estimated Duration: 10 dredging days

Justification for Dredging: The navigation channel is restricted to 200 feet within the 9.0’ contours and 135 feet within the 10.5’ contours.   

MATERIAL PLACEMENT DATA

Proposed Placement Site: Lower Boulanger

Location: 2-821.1-LMT

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 contact the Channel Maintenance Coordinator at (651)

324-2050.


Freeborn Light Mississippi River navigation redge sedimentation St. Paul District U.S. Army Corps of Engineers

Bookmark and Share Email Print


Dredging Notice 15-38 Freeborn Light

Posted: 10/15/2015

Expiration date:


DN 15-38                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

NOTICE DATE: October 15th, 2015                          DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Freeborn Light                    RIVER MILE: 818.2 – 818.8

HISTORIC DATA

Frequency: 27%                                             Avg. Quantity/Job:  37,914 yd3

Date Last Dredged:  August 26th, 2014          Avg. Quantity/Year:  10,110 yd3

SURVEY DATA

Date Surveyed: October 8th, 2015

Water Surface Elevation: 686.7

Low Control Pool Elevation: 686.2

Net Difference: + 0.5’

5-Day River Forecast: Holding Steady

DREDGING DATA

Recommended Channel Width: 400 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 18,722 yd3, Access dredging: 284 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: October 16th, 2015

Estimated Duration: 10 dredging days

Justification for Dredging: The navigation channel is restricted to 200 feet within the 9.0’ contours and 135 feet within the 10.5’ contours.   

MATERIAL PLACEMENT DATA

Proposed Placement Site: Lower Boulanger

Location: 2-821.1-LMT

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 contact the Channel Maintenance Coordinator at (651)

324-2050.


Freeborn Light Mississippi River navigation redge sedimentation St. Paul District U.S. Army Corps of Engineers