US Army Corps of Engineers
Jacksonville District Website

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Tag: St. Johns River
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  • May

    Fifth grade students take on Jax Port deepening debate

    Mayport Elementary Coastal Sciences Academy fifth graders are studying the Jax Port “dredging debate” and recently invited the U.S. Army Corps of Engineers, Jacksonville District to present its case. The kindergarten through fifth grade academy teaches students the importance of preserving habitats and ecosystems through resources conservation.
  • January

    Invasive Species biologists combat explosion of aquatic plant growth

    The year 2012 brought many challenges for the Invasive Species Management (ISM) Branch to tackle. Multiple factors led to the highest levels of water hyacinth on Lake Okeechobee since 1986. Water hyacinth invades lakes, ponds, rivers, marshes and other types of wetland habitats. According to the Early Detection and Distribution Mapping System website, water hyacinth can reproduce and quickly form dense floating mats of vegetation, sometimes doubling in size over a two week period. These dense mats reduce light and deplete oxygen levels for submerged plants and aquatic invertebrates.