CONTAMINATED SEDIMENT CONTROL

Engineering and Design Challenges:

• Loading on System

  • Large enclosed tidal volume

  • Smaller available geotextile filter area, especially at mid to low tide

• Achieving Adequate Filtration

  • High flux rates (flow per unit area)

• Transitions:

  • Interface of TRB with SPW top

  • Connections between full-depth barrier and SPW section

• Barge Gate Design and Operation

Solutions:

• Robust anchoring elements

• Custom filter composite

• Durable transition interfaces

• Innovative access features

Outcome:

• Compliance achieved – monitored daily at six water quality testing locations

• Design aspects adjusted and addressed during installation and commissioning period due to quick/shorter design period