TRAFFIC CONTROL LIGHTS
For details of operation of the U.S. Coast Guard Marine Safety Office, New Orleans maintained Traffic Control Lights in the Mississippi River, consult the Coast Pilot and U.S. Coast Guard List of Lights Volume IV.
Governor Nicholls Traffic Light shows Fl R or G 5s, Gretna Traffic Light shows Fl R or G 5s, and Westwego Traffic Light shows QR or G only when Traffic Control Lights are in operation.
Traffic Lights operate when the gauge reads 2.4 meters/8 feet on the rise and cease to operate when the gauge reads 2.7 meters/9 feet on the fall of the river.