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Caloosahatchee River and Estuary
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wading bird in Caloosahatchee EstuaryThe Caloosahatchee River and Estuary are west coast treasures, enjoyed by residents and visitors alike. Recognizing that the health of the river and its estuary is essential to the overall way of life for area residents, the South Florida Water Management District considers protection and improvement of the Caloosahatchee watershed an agency priority.

Extensive historical modifications to the Caloosahatchee River and its watershed have altered the hydrology of the region. As a result, heavy rainfall can bring large influxes of fresh water into the Caloosahatchee Estuary from stormwater runoff within the basin, Lake Okeechobee releases or both. The increased freshwater flows affect salinity levels and water quality in the estuary, potentially causing environmental harm.

To address these issues, the South Florida Water Management District is working with the U.S. Army Corps of Engineers and other federal, state and local partners on a variety of strategies to improve the health of the Caloosahatchee Estuary.

Where is the Latest Data for the Caloosahatchee?

Using SFWMD's monitoring network and technical information, a wealth of data is available on this website for the District's 16-county region, including the Caloosahatchee River and Estuary:

  • Operational Planning – Find weekly operational reports and other information on the current state of the system and water control operations, including water quality and environmental conditions such as salinity levels, Lake Okeechobee water control structure operations recommendations, rainfall outlook models and more.
  • Live Data – Check real-time water levels in lakes, canals and waterways or see whether coastal gates and other water control structures are open or closed.
  • Rainfall Maps – See maps with historical rainfall totals, current radar-based rainfall estimates and more.
  • DBHYDRO – Search this extensive environmental database for historical or up-to-date surface or groundwater information, as well as meteorological, hydrogeological and water quality data.

Data and Reports from U.S. Army Corps of Engineers

Caloosahatchee Estuary Inflows September 1, 2016 - Oct. 25, 2016 - View Larger


Interactive Map, Moving Water South of Lake Okeechobee - View Larger


Background / Local Watershed

Enlarge MapBeginning in the late 19th century, the Caloosahatchee River and its watershed underwent extensive modifications that drastically altered the hydrology of the region. The once shallow and crooked river was deepened and widened into a regulated waterway that was connected to Lake Okeechobee and the Kissimmee Chain of Lakes for navigation, water supply and flood control purposes.


Lake Okeechobee Stages - View Larger

Managing Lake Okeechobee

The U.S. Army Corps of Engineers manages Lake Okeechobee water levels with the goal of balancing flood control, public safety, navigation, water supply and ecological health. The Corps bases operational decisions – whether to retain or release water in the massive lake – on its regulation schedule and the best available science and data provided by its staff and a variety of partners, including the South Florida Water Management District.

In a fixed regional water management system with limited storage, the Corps must sometimes release water from Lake Okeechobee to the St. Lucie and Caloosahatchee rivers to protect public safety when lake levels get too high. Under its revised 2008 regulation schedule, the Corps strives to maintain Lake Okeechobee's water level between 12.5 feet and 15.5 feet NGVD, in part to protect the integrity of the aging Herbert Hoover Dike that surrounds the lake. The lake's water level can rise up to six times faster than water can be discharged.


Constraints in Operating the Systemthumbnail from constraints presentation

Historically, Lake Okeechobee overflowed its natural banks and sent a sheet flow of water south through the expansive Everglades all the way to Florida Bay. In today's managed system, a number of constraints limit how much water can be sent through canals and structures from the lake to the remnant Everglades. more »


Strategies for Improving the Caloosahatchee River and Estuary

The District and our local, state and federal partners have numerous efforts under way to improve water quality in the Caloosahatchee and better manage the timing and quantity of water flows from Lake Okeechobee. The District continues to work with the Corps to optimize water management strategies that may provide incremental improvements for both the estuary and the lake. We are also implementing short- and long-term solutions for improving the health of the Caloosahatchee River and Estuary while balancing regional flood control, water supply and environmental needs for South Florida's 8.1 million residents.

Caloosahatchee River Watershed Protection Plan

Caloosahatchee River (C-43) West Basin Storage Reservoir

Northern Everglades and Estuaries Protection Program

Water Storage Strategies

Basin Management Action Plan

Lower West Coast Water Supply Plan

Water Reservation for CERP Caloosahatchee River (C-43) West Basin Storage Reservoir

Minimum Flows and Levels

Adaptive Protocols for Lake Okeechobee Operations [PDF]

Lake Hicpochee Shallow Storage and Hydrologic Enhancement Project [PDF]

Restoration Progress – Key Projects [Map]

Highlighted Projects [PDF]

Completed Local Projects [PDF]


Frequently Asked Questions – Lake Okeechobee Releases
Who is responsible for water releases from Lake Okeechobee? »

Why is water sometimes discharged from Lake Okeechobee through the St. Lucie and Caloosahatchee waterways into the estuaries? »

What is the SFWMD's role in water releases from Lake Okeechobee? »

Can more water from Lake Okeechobee be sent south to the Everglades? »

Can Lake Okeechobee releases to the Caloosahatchee and St. Lucie estuaries be stopped? »

Can a flow-way be constructed south of Lake Okeechobee? »

Why does environmental restoration take so long? »



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Related Contacts
  • Philip Flood, Jr. – Regional Representative
    (239) 338-2929, ext. 7768

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