This is a market research notice seeking information from contractors capable of performing the initial phase of restoring Deer Island in Harrison County, Mississippi, which involves extending the Katrina Key rock breakwater by approximately 12,000 feet. The anticipated construction cost for this project is between $10 million and $25 million, with a proposed construction duration of 270 calendar days. The notice is specifically seeking responses from both small and large businesses, particularly those classified under NAICS code 237990. This is not a solicitation, and no contract will be awarded directly from this notice. Responses are limited to ten pages and must be submitted electronically by the specified due date.