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  DN 17-18 Picayune Island
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Dredge Notice 17-18 Picayune Island

Posted: 7/3/2017

Expiration date:


DN 17-18                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: July 3rd, 2017                                  DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Picayune Island                   RIVER MILE: 690.8 - 691.6

 

HISTORIC DATA

Frequency: 21%                                             Avg. Quantity/Job: 36,670 yd3

Last Date Dredged: July 17th, 2015               Avg. Quantity/Year: 7,802 yd3

 

SURVEY DATA

Date Surveyed: June 27th, 2017

Water Surface Elevation: 631.5

Low Control Pool Elevation: 630.0

Net Difference: +1.5

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 400 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 63,477 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: July 3rd, 2017

Estimated Duration: 8 dredging days

Justification for Dredging: The navigation channel is closed between the 10.5 foot contours and reduced to 230 feet between the 9.0 foot contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Above Brownsville

Location: 8-690.4-LWT

Site Characteristics: This is a historically used temporary placement site. 

 

If you have any questions concerning this project or request an onsite meeting, please call a Channel Maintenance Coordinator at (651) 290-5155.

 

 

 

Dredge Mississippi River navigation Picayune Island sedimentation St. Paul District U.S. Army Corps of Engineers

ATTACHMENTS


  DN 17-18 Picayune Island
Bookmark and Share Email Print


Dredge Notice 17-18 Picayune Island

Posted: 7/3/2017

Expiration date:


DN 17-18                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

 

NOTICE DATE: July 3rd, 2017                                  DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Picayune Island                   RIVER MILE: 690.8 - 691.6

 

HISTORIC DATA

Frequency: 21%                                             Avg. Quantity/Job: 36,670 yd3

Last Date Dredged: July 17th, 2015               Avg. Quantity/Year: 7,802 yd3

 

SURVEY DATA

Date Surveyed: June 27th, 2017

Water Surface Elevation: 631.5

Low Control Pool Elevation: 630.0

Net Difference: +1.5

5 Day River Forecast: Slow Decline

 

DREDGING DATA

Recommended Channel Width: 400 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 63,477 yd3

Type of Dredge: Government Hydraulic

Proposed Dredging Date: July 3rd, 2017

Estimated Duration: 8 dredging days

Justification for Dredging: The navigation channel is closed between the 10.5 foot contours and reduced to 230 feet between the 9.0 foot contours.

 

MATERIAL PLACEMENT DATA

Proposed Placement Site: Above Brownsville

Location: 8-690.4-LWT

Site Characteristics: This is a historically used temporary placement site. 

 

If you have any questions concerning this project or request an onsite meeting, please call a Channel Maintenance Coordinator at (651) 290-5155.

 

 

 

Dredge Mississippi River navigation Picayune Island sedimentation St. Paul District U.S. Army Corps of Engineers