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  DN 17-09 Freeborn Light
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Dredge Notice 17-09 Freeborn Light

Posted: 5/29/2017

Expiration date:


DN 17-09                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: May 29th, 2017                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Freeborn Light                    RIVER MILE: 818.7 – 819.3

 

HISTORIC DATA

Frequency: 30%                                             Avg. Quantity/Job:  35,634 yd3

Date Last Dredged:  August 25th, 2016         Avg. Quantity/Year:  10,614 yd3

 

SURVEY DATA

Date Surveyed: May 23rd, 2017

Water Surface Elevation: 686.7

Low Control Pool Elevation: 686.2

Net Difference: + 0.5’

5-Day River Forecast: Slight Increase

 

DREDGING DATA

Recommended Channel Width: 400 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 21,968 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: May 30th, 2017

Estimated Duration: 11 dredging days

Justification for Dredging: The navigation channel is restricted to 325 feet between the 9.0’ contours and 255 feet between the 10.5’ contours.  On a recommended bend width of 400’.  

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Pine Bend

Location: 2-823.8-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 call a Channel Maintenance Coordinator at (651) 290-5155

 

 

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

ATTACHMENTS


  DN 17-09 Freeborn Light
Bookmark and Share Email Print


Dredge Notice 17-09 Freeborn Light

Posted: 5/29/2017

Expiration date:


DN 17-09                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: May 29th, 2017                                DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Freeborn Light                    RIVER MILE: 818.7 – 819.3

 

HISTORIC DATA

Frequency: 30%                                             Avg. Quantity/Job:  35,634 yd3

Date Last Dredged:  August 25th, 2016         Avg. Quantity/Year:  10,614 yd3

 

SURVEY DATA

Date Surveyed: May 23rd, 2017

Water Surface Elevation: 686.7

Low Control Pool Elevation: 686.2

Net Difference: + 0.5’

5-Day River Forecast: Slight Increase

 

DREDGING DATA

Recommended Channel Width: 400 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 21,968 yd3

Type of Dredge: Contract Mechanical

Proposed Dredging Date: May 30th, 2017

Estimated Duration: 11 dredging days

Justification for Dredging: The navigation channel is restricted to 325 feet between the 9.0’ contours and 255 feet between the 10.5’ contours.  On a recommended bend width of 400’.  

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Pine Bend

Location: 2-823.8-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 call a Channel Maintenance Coordinator at (651) 290-5155

 

 

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