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US Army Corps of Engineers BUILDING STRONG ® Craney Island Dredged Material Management Area AIWA Conference Thomas C. Friberg, P.E. Chief, Operations Support.

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Presentation on theme: "US Army Corps of Engineers BUILDING STRONG ® Craney Island Dredged Material Management Area AIWA Conference Thomas C. Friberg, P.E. Chief, Operations Support."— Presentation transcript:

1 US Army Corps of Engineers BUILDING STRONG ® Craney Island Dredged Material Management Area AIWA Conference Thomas C. Friberg, P.E. Chief, Operations Support Section Norfolk District November 18, 2010

2 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Dredged Material Management Area Proximity

3 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District NORTH CONTAINMENT CELL CENTER CONTAINMENT CELL SOUTH CONTAINMENT CELL NORTH DIVISION DIKE SOUTH DIVISION DIKE spillways No. 6 No. 5 No. 4 No. 3 No. 2 No. 1 spillways Craney Island Dredged Material Management Area

4 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Dredged Material Management Area

5 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Material Settling State and Water Removal  Coarser material settles first near the inflow  Dredge material settles in a sloping manner as water flows west  Clean water is removed by Spillway  Effluent meets all CWA Requirements East End West End Spillway

6 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Dredged Material Placement Inflow Settling Water Removal Discharge of Water

7 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Environmental Monitoring Water Quality Contractors are required to inspect effluent water every 4- hours, or 6-times per day. Water quality testing for Total Suspended Solids (TSS) is required 2-times per day. Additional testing is required if effluent water appears cloudy.

8 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Environmental Monitoring Water Quality Cont’d: If effluent water at a spillway appears cloudy, contractors are required to stop the discharge at the spillway by raising weir boards. Contractors are required to document each inspection and testing event. Monitoring allows for real-time measurements and allows dredging contractors to take immediate action to modify their operations.

9 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Wildlife Renowned as a bird watching spot. Provides foraging and nesting habitat for more than 270 species. Balance needs of Port of Hampton Roads while minimizing impacts on environment.

10 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Wildlife Management In cooperation with the College of William and Mary, the Corps has successfully managed T&E bird species at Craney Island while accomplishing our mission requirements. The Corps has consistently balanced the needs of the Port of Hampton Roads while ensuring Craney Island operations have minimal impacts on environmental resources.

11 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Section 148 of PL : Sec 148. “Chief of Engineers, shall... Extend the capacity and useful life of dredged material disposal areas such that the need for new dredged material disposal areas is kept to a minimum.” Craney Island Dredged Material Management Area Congress

12 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Dredged Material Management Area

13 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Dredged Material Management Area

14 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Marine Terminal Phase I

15 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Craney Island Dredged Material Management Area Fill Date Original Site1980 Existing Site2025 Strip Drains Inside10 Years Westside Berm10 Years South Cell only5 Years Eastward Expansion5 Years Projection of Life Expectancy

16 BUILDING STRONG ® US Army Corps of Engineers – Norfolk District Future Uses


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