This is a Sources Sought notice for preliminary planning to identify qualified small businesses for a dredging project. The project involves dredging an estimated 500,000 cubic yards from channels at the Port of Long Beach and the Los Angeles River Estuary in California, with disposal to approved sites. The estimated construction cost is between $5,000,000 and $10,000,000, and the estimated total contract performance period is 180 calendar days. The notice seeks responses from contractors with specific capabilities, including experience dredging to depths of -76 feet and working in open ocean environments. This is a 100% Total Small Business Set-Aside under NAICS code 237990.