DN 14-24 DREDGING NOTICE
U.S. ARMY CORPS OF ENGINEERS
ST. PAUL DISTRICT
NOTICE DATE: August 19th, 2014 DREDGING CATEGORY: Imminent
MEETING DATE: If requested MEETING TIME:
BOAT REQUIREMENT: MEETING LOCATION:
DREDGE CUT NAME: Island 126 RIVER MILE: 677.5 - 678.0
HISTORIC DATA
Frequency: 11% Avg. Quantity/Job: 43,311 yd3
Date Last Dredged: October 4th, 2012 Avg. Quantity/Year: 4,922 yd3
SURVEY DATA
Date Surveyed: August 6th, 2014
Water Surface Elevation: 622.0
Low Control Pool Elevation: 619.3
Net Difference: +2.7’
5 Day River Forecast: Holding steady
DREDGING DATA
Recommended Channel Width: 450 feet
Recommended Dredging Depth: 11 feet
Estimated Quantity: 18,985 yd3
Type of Dredge: Government Mechanical
Proposed Dredging Date: August 18th, 2014
Estimated Duration: 14 dredging days
Justification for Dredging: The navigation channel is closed within the 9.0’ contours and closed within the 10.5’ contours.
MATERIAL PLACEMENT DATA
Proposed Placement Site: Lansing Highway Bridge
Location: 9-663.5-LWP
Site Characteristics: This is a historically used permanent placement site. Beneficial use restores capacity on a recurring basis; all material is expected to be removed.
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) 290-5154.