DN 16-21 DREDGING NOTICE
U.S. ARMY CORPS OF ENGINEERS
ST. PAUL DISTRICT
NOTICE DATE: August 9th, 2016 DREDGING CATEGORY: Imminent
MEETING DATE: If requested MEETING TIME:
BOAT REQUIREMENT: MEETING LOCATION:
DREDGE CUT NAME: Teepeeota Point RIVER MILE: 757.2 – 757.7
HISTORIC DATA
Frequency: 70% Avg. Quantity/Job: 48,800 yd3
Date Last Dredged: October 8th, 2015 Avg. Quantity/Year: 33,948 yd3
SURVEY DATA
Date Surveyed: August 8th, 2016
Water Surface Elevation: 666.6
Low Control Pool Elevation: 666.4
Net Difference: 0.2’
5 Day River Forecast: Slow Decline
DREDGING DATA
Recommended Channel Width: 500 feet
Recommended Dredging Depth: 12 feet
Estimated Quantity: 29,116 yd3 plus 209 yd3 for access at Alma Marina Plcmt Site
Type of Dredge: Contract Mechanical
Proposed Dredging Date: August 10th, 2016
Estimated Duration: 14 dredging days
Justification for Dredging: The navigation channel is reduced to 165 feet between the 9.0’ contours and closed between the 10.5’ contours, on a recommended bend of 500 feet.
MATERIAL PLACEMENT DATA
Proposed Placement Site: Alma Marina Placement Site
Location: 4-754.0-LWP
Site Characteristics: This is a historically used upland placement site. All material is anticipated 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) 290-5155.