Zebra Mussels in Highland Haven in Boat Slips and Irrigation System Intakes

City Hall has received reports from residents that they are finding zebra mussels in their boat slips and in their irrigation system intakes.  We included information in past newsletters, including March 2021, regarding this invasive species.  Please visit these websites to get more information regarding zebra mussels.



Residents should also consider getting more information regarding blue-green algae and its toxic effect on dogs.


A lot of research material is available on the Internet if you search “zebra mussels” and “blue-green algae”.

Olan Kelley


City of Highland Haven TX

830-265-4366 office

512-413-9031 cell