Sarasota County Water Atlas

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Blackburn Bay

Blackburn Bay

Blackburn Bay


located within the following watersheds: Dona and Roberts Bay Watershed, Little Sarasota Bay Watershed

General Information


Blackburn Bay is a long slender bay near the communities of Osprey, Laurel, Nokomis, and Casey Key. The bay, named for early settlers who arrived in the 1880s, is designated an Outstanding Florida Water and is thereby legally protected from degradation. Blackburn Bay enjoys relatively good circulation and water quality because of its proximity to the Venice Jetties (pass) to the south. South Creek flows into Blackburn Bay from Oscar Sherer State Park. The Sarasota Bay Estuary Program study area includes this bay.

Learn more about what constitutes a bay or estuary »

News and Events

No news or events have been posted yet. Be the first to submit news and events to the Water Atlas.

Associated Names

There are no associated names for this body of water.

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Map Legend

Water Quality sampling site
Hydrology sampling site
Closest Rainfall site
Rainfall sampling site
Multi-type sampling site
Other sampling site

Data Summary

This water resource is monitored by 16 sampling locations, which have collected a total of 61,018 samples ranging from 1/11/1971 to 3/4/2020. The sites sampling this water resource are:

Datasource (click for details)Station ID
FDEP Historic Data from Legacy STORET24010541
FDEP Historic Data from Legacy STORET24010542
FDEP Historic Data from Legacy STORET24010610
Mote Marine Historic Data from Legacy STORET270808082281400
Mote Marine Historic Data from Legacy STORET270810082280600
Mote Marine Historic Data from Legacy STORET270848082282700
Sarasota County Environmental Services Department Sampling Data16-2
Sarasota County Environmental Services Department Sampling Data16-3
Sarasota County Environmental Services Department Sampling Data16-4
Sarasota County Environmental Services Department Sampling Data16-5
Sarasota County Historic Data from Legacy STORET16-2
Sarasota County Historic Data from Legacy STORET16-3
Sarasota County Historic Data from Legacy STORET16-4
Sarasota County Historic Data from Legacy STORET16-5
Sarasota County Historic Data from Legacy STORET24010541
Sarasota County Historic Data from Legacy STORET24010610

Water Resource Characteristics

Size and Volume

Surface Area 526 acres


Watershed Dona and Roberts Bay Watershed
Latitude 27° 08' 56"
Longitude 82° 28' 36"
Learn more about Location Information »

Tributaries and Passes

Tributaries CANAL 17-277, SOUTH CREEK

    Watersheds and Drainage Basins

    Watersheds are areas of land with waterways that flow to a common destination. The boundaries between watersheds are elevated areas called divides. In this Atlas, the watersheds are composed of groups of creeks that flow to a single bay or group of bays. Drainage basins are subunits of watersheds and are defined by the main creek that flows through them. Sarasota County has five watersheds, named after the bays or river, and 28 drainage basins, named after the creeks. Stormwater improvements to reduce flooding and improve water quality are based on the drainage basin unit. Learn more about watersheds »

    Blackburn Bay is located within the Dona and Roberts Bay Watershed.

    Specific drainage basins within this watershed include:


    Who to call about environmental concerns and to report environmentally harmful activities. For potentially life threatening emergencies dial 911.

    Concern or Activity Contact(s)
    Dangerous Boating / Accidents

    FWCC, Division of Boating Safety
    1-850-488-5600 (to report an accident) or
    1-888-404-3922 (to report unsafe boating)

    Algal Blooms

    FDEP 1-850-305-3903

    Fish Kill

    FWCC, Fish Kills

    General Concerns/Complaints


    Sarasota County Contact Centera

    Industrial Waste/Spill

    FDEP State Watch Office

    Injured Wildlife or Illegal Activities

    FWCC, Wildlife Violations
    or via cell phone, dial *FWC or #FWC depending on service carrier

    Shoreline Alterations, Wetland Impacts


    Aquatic Plant Removal

    1-813-744-6163 or 6164

    Water Pollution, Residuals Landspreading


    Wetlands Issues/Dredge and Fill


    Source(s): USF Water Institute

    FWCC - Fish and Wildlife Conservation Commission
    FDEP - Florida Department of Enviromental Protection

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      Nautical Charts

      Nautical charts show water depth, the shoreline of adjacent land, prominent topographic features, aids to navigation, and other navigational information. They are maintained by the National Oceanic and Atmospheric Administration (NOAA) and have recently been made available as geo-referenced, digital images which can be now be viewed within the Advanced Mapping Tool.

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        Report Water Pollution

        Every one of us contributes pollution to our streams, lakes, bays and oceans. The wastewater, dirt, and debris of our lives eventually drains downstream. Each of us must minimize our contribution to keep our waterways healthy and enjoyable. Some materials are powerful pollutants like raw sewage, petroleum, or pesticides, but even natural, biodegradable plant materials can add nitrogen to water resources and cause algal blooms and fish kills. Please use the information below to assist you in reporting an incident to the correct agency. Learn More about Reporting Pollution »

        To Report Water Pollution:

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        Get Involved

        Sarasota County needs you to help manage and protect its natural resources! Fill out this form, and we will contact you with more information about becoming a volunteer. Learn more about volunteering »

        0 volunteers on Blackburn Bay have submitted a water quality sample for this water resource within the last 18 months.

        Become a Volunteer! Click here to sign up for volunteering.

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        Related Links

        Visit the Digital Library to view additional documents related to this water resource – Once at the Digital Library, type in a specific keyword such as "water quality" to narrow the search.
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