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Dredging Notice 15-28 Betsy Slough

Posted: 8/25/2015

Expiration date:


DN 15-28                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

NOTICE DATE: August 25th, 2015                           DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Betsy Slough                       RIVER MILE: 731.0– 731.3

HISTORIC DATA

Frequency: 87%                                             Avg. Quantity/Job: 32,725 yd3

Date Last Dredged: November 12th, 2014     Avg. Quantity/Year: 28,362 yd3

SURVEY DATA

Date Surveyed: August 21st, 2015

Water Surface Elevation: 650.4

Low Control Pool Elevation: 649.9

Net Difference: +0.5’

5 Day River Forecast: Steady Decline

DREDGING DATA

Recommended Channel Width: 500 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 14,271 yd3

Type of Dredge: Government Mechanical - Wade

Proposed Dredging Date: August 25th, 2015

Estimated Duration: 11 dredging days

Justification for Dredging: The navigation channel is restricted to 295 feet between the 10.5’ contours and restricted to 335 feet between the 9.0’ contours on a very sharp bend.

MATERIAL PLACEMENT DATA

Proposed Placement Site: Fountain City 1 Site

Location: 5A-731.9 LWP

Site Characteristics: Fountain City 1 is a historically used upland beneficial use 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.


Betsy Slough Dredge Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers

Bookmark and Share Email Print


Dredging Notice 15-28 Betsy Slough

Posted: 8/25/2015

Expiration date:


DN 15-28                                            DREDGING NOTICE

                                               U.S. ARMY CORPS OF ENGINEERS

                                                            ST. PAUL DISTRICT

NOTICE DATE: August 25th, 2015                           DREDGING CATEGORY: Imminent

MEETING DATE: If requested                                  MEETING TIME:

BOAT REQUIREMENT:                                           MEETING LOCATION:

DREDGE CUT NAME: Betsy Slough                       RIVER MILE: 731.0– 731.3

HISTORIC DATA

Frequency: 87%                                             Avg. Quantity/Job: 32,725 yd3

Date Last Dredged: November 12th, 2014     Avg. Quantity/Year: 28,362 yd3

SURVEY DATA

Date Surveyed: August 21st, 2015

Water Surface Elevation: 650.4

Low Control Pool Elevation: 649.9

Net Difference: +0.5’

5 Day River Forecast: Steady Decline

DREDGING DATA

Recommended Channel Width: 500 feet

Recommended Dredging Depth: 12 feet

Estimated Quantity: 14,271 yd3

Type of Dredge: Government Mechanical - Wade

Proposed Dredging Date: August 25th, 2015

Estimated Duration: 11 dredging days

Justification for Dredging: The navigation channel is restricted to 295 feet between the 10.5’ contours and restricted to 335 feet between the 9.0’ contours on a very sharp bend.

MATERIAL PLACEMENT DATA

Proposed Placement Site: Fountain City 1 Site

Location: 5A-731.9 LWP

Site Characteristics: Fountain City 1 is a historically used upland beneficial use 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.


Betsy Slough Dredge Mississippi River navigation sedimentation St. Paul District U.S. Army Corps of Engineers