DN 14-36 DREDGING NOTICE
U.S. ARMY CORPS OF ENGINEERS
ST. PAUL DISTRICT
NOTICE DATE: September 11th, 2014 DREDGING CATEGORY: Imminent MEETING DATE: If requested MEETING TIME:
BOAT REQUIREMENT: MEETING LOCATION:
DREDGE CUT NAME: Head of Raft Channel RIVER MILE: 687.6 – 688.1
Frequency: 48% Avg. Quantity/Job: 38,597 yd3
Last Date Dredged: October 8th, 2013 Avg. Quantity/Year: 18,422 yd3
Date Surveyed: September 9th, 2014
Water Surface Elevation: 631.2
Low Control Pool Elevation: 629.8
Net Difference: +1.4’
5 Day River Forecast: Holding steady
Recommended Channel Width: 400 feet
Recommended Dredging Depth: 12 feet
Estimated Quantity: 27,760 yd3
Type of Dredge: Contract Mechanical
Proposed Dredging Date: September 11th, 2014
Estimated Duration: 12 dredging days
Justification for Dredging: The navigation channel is restricted to 200 feet within the 9.0’ contours and closed within the 10.5’ contours.
MATERIAL PLACEMENT DATA
Proposed Placement Site: Brownsville
Site Characteristics: This is a historically used beneficial use stockpile 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) 290-5154.