DN 18-32 DREDGING NOTICE
U.S. ARMY CORPS OF ENGINEERS
ST. PAUL DISTRICT
NOTICE DATE: September 24th, 2018 DREDGING CATEGORY: Imminent
MEETING DATE: If requested MEETING TIME:
BOAT REQUIREMENT: MEETING LOCATION:
DREDGE CUT NAME: Cannon River RIVER MILE: 792.8 – 793.7
HISTORIC DATA
Frequency: 31 % Avg. Quantity/Job: 32,093 yd3
Date Last Dredged: August 8th, 2017 Avg. Quantity/Year: 10,029 yd3
SURVEY DATA
Date Surveyed: September 19th, 2018
Water Surface Elevation: 668.9
Low Control Pool Elevation: 666.6
Net Difference: +2.3
5-Day River Forecast: Steady Increase
DREDGING DATA
Recommended Channel Width: 300 feet
Recommended Dredging Depth: 11 feet channel
Estimated Quantity: 23,959 yd3
Type of Dredge: Contract Mechanical
Proposed Dredging Date: September 24th, 2019
Estimated Duration: 12 dredging days
Justification for Dredging: The navigation channel is reduced to 80’ between the 9.0’ contours and closed between the 10.5’ contours.
MATERIAL PLACEMENT DATA
Proposed Placement Site: Red Wing Commercial Harbor
Location: 4-791.6-RMP
Site Characteristics: This is a historically used upland placement site owned by the City of Red Wing.
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.