GULF INTRACOASTAL WATERWAY 
Project depths are 3.7 meters/12 feet Carrabelle, FL to Brownsville, TX. The controlling depths are published periodically in the U.S. Coast Guard Local Notice to Mariners. Mileage distances shown along the Waterway are in Statue Miles, based on zero at Harvey Lock, LA, and are indicated. Tables for converting Statue Miles to International Nautical Miles are given in U.S. Coast Pilot 5.