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US Army Corps of Engineers
BUILDING STRONG®
St. Louis District Dredging
Lance Engle
Dredging Project Manager
St. Louis District
WEDA – Midwest 2012
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Agenda
• Maintenance Dredging– District / Mission– Floating Plant– 2011 / 2012 Dredging– Other Marine Work
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St. District
Illinois River
Missouri River
Mississippi
River
St. Louis
Confluence of Missouri and Mississippi Rivers
Kask
aski
a
Rive
r
SEMO Port
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4
Channel Patrol
M/V PATHFINDER
Multi Mission: Channel Recon, Survey, Buoy Positioning, Towing & L&D Repair
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BUILDING STRONG®
Survey Boats
• 2 - AE Contracts• 4 – Gov.’t < 26-ft
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6
Dredge Potter
.32 Inch diesel-electric dustpan dredge. 2011 New Texas Deck, Pump, ICMS
800 feet of fixed discharge pipeline, 2400 feet of floating pipeline.
Season July thru December.
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7
Dredge Potter Flexible Pipeline
.
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Cutterhead Dredge Contract
8
• 24” Cutterhead with 3000-ft of pipeline.
• Season July thru December.
• 4th year of 5 year contract.
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BUILDING STRONG®
2011 Dredge Season - Stats
Dredge # Jobs Cubic Yards Dates
Potter 31 3.5M 9/4-12/16
America 11 1.3M 7/8-8/24
10/6-10/31
Total 42 4.8M
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BUILDING STRONG®
Dredging 2012 Low flood risk
►Potential for less dredging requirement in Pools.
►Lower (Middle Miss) potential for low water & more dredging.
Funding►FY 12 flat for Upper, Lower & ILW; Kaskaskia
and SEMO none.►Supplemental Funding for Upper, Lower,
Kaskaskia and SEMO.
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BUILDING STRONG®
Future Marine Work
Environmental Dredging Carlyle Lake & Kaskaskia River- IDIQ contract for small cutterhead & mechanical dredging equipment. Closes 4 June.
Lock & Dam 25 - Downstream Main Lock Scour Repairs, Phase II. Closes 11 May.
Lock & Dam 24 – Scour Repair – tbd, 4th Quarter. O&M & New Dike Contracts- typically issued
Jan.► FY13 budget is healthy.
Rock Removal FY14 – Thebes to Commerce
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BUILDING STRONG®
Rock Removal Update•Current Status
•Rock Grinding contract unsuccessful.•(Phases 2–4) only removed 20 cu yds
out of 6,700 cu yds.
• Path Forward•Evaluated alt. methods (boring, saw cutting, etc.)•Concluded that nothing will work except for blasting.•Budget request for FY14 (blasting)•New AIS data will be used to determine tow tracks.
•Pinnacles and rock outcrops are shown as obstruction areas in the IENC.
•Trigger (10-ft Cape Girardeau and falling)•Coordinate with USCG and RIAC, issue Navigation Notice.•Rock pinnacles will begin effecting 9 ft draft barge traffic at a stage of 8.2 Cape Girardeau.
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BUILDING STRONG®
The End