Seaport, Inc., New Orleans, has applied to the Maritime Administration for a Title XI guarantee to aid in financing the construction of two 250-foot derrick barges to be operated in New Orleans Harbor. The applicant is a subsidiary of Southern Harbor & Towing, Inc., Metairie, La.

The barges are being built by Bergeron Industries, Braithwaite, La., and Todd Shipyards, Galveston, Texas, with deliveries scheduled during the first and second quarters of 1981. The requested guarantee is for $6,562,000, which is 87½ percent of the $7,500,000 estimated cost of both vessels.