INTRACOASTAL WATERWAY Consult the U.S. Army Corps of Engineers for controlling depths and U.S. Coast Guard Local Notice to Mariners for other navigation hazards or restrictions. Mileage distances shown along the Waterway are in Statute Miles, based on zero at the junction of Bayou Boeuf and the Gulf Intracoastal Waterway and are indicated. Tables for converting Statute Miles to International Nautical Miles are given in U.S. Coast Pilot 5.