DN 19-04 DREDGING NOTICE
U.S. ARMY CORPS OF ENGINEERS
ST. PAUL DISTRICT
NOTICE DATE: May 18th, 2019 DREDGING CATEGORY: Emergency
MEETING DATE: If requested MEETING TIME:
BOAT REQUIREMENT: MEETING LOCATION:
DREDGE CUT NAME: Below Winona RR Bridge RIVER MILE: 723.0 – 723.6
HISTORIC DATA
Frequency: 49% Avg. Quantity/Job: 25,932 yd3
Date Last Dredged: October 8th, 2018 Avg. Quantity/Year: 12,701 yd3
SURVEY DATA
Date Surveyed: May 15th, 2019
Water Surface Elevation: 650.7
Low Control Pool Elevation: 644.6
Net Difference: +6.1’
5 Day River Forecast: Holding Steady
DREDGING DATA
Recommended Channel Width: 300 feet
Recommended Dredging Depth: 11 feet
Estimated Quantity: 13,943 yd3
Type of Dredge: Government Mechanical Plant 1
Proposed Dredging Date: May 18th, 2019
Estimated Duration: 5 – 24 hour dredging days
Justification for Dredging: The navigation channel is closed between the 9’ and 10.5’ contours.
MATERIAL PLACEMENT DATA
Proposed Placement Site: Winona Harbor, Homer
Location: 6-726.0-LMP, 6-720.5-RMP
Site Characteristics: These are both historically used beneficial use placement sites 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 call a Dredging Manager at (651) 290-5155.