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e-CFR data is current as of March 1, 2021

Title 33Chapter ISubchapter JPart 117Subpart B → Subject Group


Title 33: Navigation and Navigable Waters
PART 117—DRAWBRIDGE OPERATION REGULATIONS
Subpart B—Specific Requirements


Tennessee

§117.943   Cumberland River.

The draw of the Clarksville Railroad bridge over the Cumberland River, mile 126.5, at Clarksville, shall open on signal when the vertical clearance under the navigational span is 47 feet or less. The draw shall open on signal if at least two hours notice is given when the vertical clearance is greater than 47 feet. The draw need not be opened for a vessel that arrives at the bridge more than 30 minutes after the time specified in the notice, unless a second two hours notice has been given.

[CGD02 86-01, 51 FR 32319, Sept. 11, 1986, as amended by USCG-1998-3799, 63 FR 35527, June 30, 1998]

§117.945   Hatchie River.

The draws of the Illinois Central Gulf railroad bridge, mile 35.0 at Covington, and the Seaboard System Railroad bridge, mile 71.0 at Brownsville, need not be opened for the passage of vessels.

§117.947   Obion River.

The draws of all bridges on the Obion River need not be opened for the passage of vessels.

§117.949   Tennessee River.

The draws of the Chief John Ross Bridge over the Tennessee River, mile 464.1, at Chattanooga, and the Southern Railway Bridge over the Tennessee River, mile 470.7, at Hixon, Tennessee, shall open on signal when the vertical clearance beneath the draw is 50 feet or less. When the vertical clearance beneath the draw is more than 50 feet, at least eight hours notice is required. When the operator of a vessel returning through the draw within four hours informs the drawtender of the probable time of return, the drawtender shall return one half hour before the time specified and promptly open the draw on signal for the vessel without further notice. If the vessel giving notice fails to arrive within one hour after the arrival time specified, whether upbound or downbound, a second eight hours notice is required.

[CGD02 86-02, 51 FR 32320, Sept. 11, 1986; 51 FR 41894, Nov. 19, 1986, as amended by USCG-2001-10881, 71 FR 70312, Dec. 4, 2006]

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