The draw of the Meridian and Bigbee Railroad (MNBR) vertical lift span bridge across the Tombigbee River, mile 128.6 (Black Warrior Tombigbee (BWT) Waterway mile 173.6), at Naheola, shall operate as follows:
(a) The draw shall be maintained in the fully open-to-navigation position for vessels at all times, except during periods when it is closed for the passage of rail traffic.
(b) When a train approaches the bridge, it will stop and a crewmember from the train will observe the waterway for approaching vessels. If vessels are observed approaching the bridge, they will be allowed to pass prior to lowering the bridge. The crewmember will then announce via radiotelephone on VHF-FM channel 16 that the bridge is preparing to be lowered. If, after two minutes, no response has been received, the crewmember will initiate the lowering sequence.
(c) After the train has completely passed over the bridge, the crewmember will initiate the raising sequence. When the bridge is in the fully open-to-navigation position, the crewmember will announce via radiotelephone on VHF-FM channel 16 that the bridge is in the fully open-to-navigation position.
(d) To request openings of the bridge when the lift span is in the closed-to-navigation position, mariners may contact the MNBR via VHF-FM channel 16 or by telephone at 205-654-4364. [USCG-2012-0179, 77 FR 57026, Sept. 17, 2012]
Arkansas