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Craney Island Dredged Material Management Area AIWA Conference

Thomas C. Friberg, P.E . Chief, Operations Support Section Norfolk District November 18, 2010. Craney Island Dredged Material Management Area AIWA Conference. Craney Island Dredged Material Management Area Proximity. Craney Island Dredged Material Management Area. No. 6.

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Craney Island Dredged Material Management Area AIWA Conference

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  1. Thomas C. Friberg, P.E. Chief, Operations Support Section Norfolk District November 18, 2010 Craney Island Dredged Material Management AreaAIWA Conference

  2. Craney Island Dredged Material Management Area Proximity

  3. Craney Island Dredged Material Management Area No. 6 NORTH CONTAINMENT CELL spillways No. 5 NORTH DIVISION DIKE No. 4 CENTER CONTAINMENT CELL spillways No. 3 SOUTH DIVISION DIKE No. 2 spillways SOUTH CONTAINMENT CELL No. 1

  4. Craney Island Dredged Material Management Area

  5. Material Settling State and Water Removal East End West End Spillway • 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

  6. Dredged Material Placement Inflow Settling Water Removal Discharge of Water

  7. 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. Craney IslandEnvironmental 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. Craney IslandWildlife • 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. Craney IslandWildlife Management • In cooperation with the College of William and Mary, the Corps has successfully managed T&Ebird 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. Craney Island Dredged Material Management Area Congress Section 148 of PL 94-587: 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.”

  12. Craney Island Dredged Material Management Area

  13. Craney Island Dredged Material Management Area

  14. Craney IslandMarine Terminal Phase I - 2017

  15. Craney Island Dredged Material Management Area Projection of Life Expectancy

  16. Future Uses

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