MDMR operations will close at noon on Wednesday, October 28, in anticipation for potential severe weather related to Hurricane Zeta. For all marine emergencies contact DMR Marine Patrol at 1-844-WE-R-MDMR or 228-523-4134.

MDMR urges boaters to take caution around Katrina Key

20-67-CWS | September 18, 2020

BILOXI, Miss. – The Mississippi Department of Marine Resources (MDMR) urges boaters to take caution around a project to expand Katrina Key reef on the south side of Deer Island.


Concrete rubble will be deployed by barge to expand the existing Katrina Key structure to the west beginning September 18. Work is expected to last two to three weeks depending on weather conditions. The MDMR requests that boaters allow a 200 foot buffer zone around the barge and spotter boat while construction is underway. Permanent aids to navigation will be installed upon completion of the construction phase.

The Mississippi Department of Marine Resources is dedicated to enhancing, protecting and conserving marine interests of the state by managing all marine life, public trust wetlands, adjacent uplands and waterfront areas to provide for the optimal commercial, recreational, educational and economic uses of these resources consistent with environmental concerns and social changes. Visit the DMR online at


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