Connecting Roberts Bay and Sarasota Bay, Hansen Bayou is used almost exclusively by the residents along its shores at the north end of Siesta Key. When it was built on "Hansen's Bayou" in 1912, the Bay Island Hotel was a major attraction in the community. This waterbody is included in the Sarasota Bay Estuary Program and is a SWFWMD SWIM waterbody.
Bay Conditions Reports give a quick assessment of the water quality in a bay during a particular year by examining three important indicators of nutrient pollution: chlorophyll a, nitrogen and phosphorus.
The USF Water Institute is committed to ensuring that our websites conform with Accessibility Support guidelines for people who need to use assistive technologies.
We are continually improving the user experience for everyone, and applying the relevant accessibility standards.
View our Accessibility Statement for more information.