33 C.F.R. § 165.811 Atchafalaya River, Berwick Bay, LA-regulated navigation area.
Title 33 - Navigation and Navigable Waters
(a) The following is a regulated navigation area: the waters of the Atchafalaya River in Berwick Bay bounded on the northside from 2,000 yards north of the U.S. 90 Highway Bridge and on the southside from 4,000 yards south of the Southern Pacific Railroad (SPRR) Bridge. (b) Within the regulated navigation area described in paragraph (a) of this section, §161.40 of this chapter establishes a VTS Special Area for waters within a 1000 yard radius of the SPRR Bridge. (c) When the Morgan City River gauge reads 3.0 feet or above mean sea level, in addition to the requirements set forth in §161.13 of this chapter, the requirements of paragraph (d) and (e) of this section apply to a towing vessel which will navigate: (1) under the lift span of the SPRR Bridge; or (2) through the navigational opening of the U.S. 90 Highway Bridge: or (3) through the navigational opening of the Highway 182 Bridge. (d) Towing requirements. (1) Towing on a hawser is not authorized, except that one self-propelled vessel may tow one other vessel without barges upbound; (2) A towing vessel and barges must be arranged in tandem, except that one vessel may tow one other vessel alongside; (3) Length of tow must not exceed 1,180 feet; and (4) Tows with a box end in the lead must not exceed 400 feet in length. Note: The variation in the draft and the beam of the barges in a multi-barge tow should be minimized in order to avoid unnecessary strain on coupling wires. (e) Horsepower Requirement. (1) The following requirements apply to a towing vessel of 3,000 hp or less: (2) All tows carrying cargoes of particular hazard as defined in §160.203 of this chapter must have available horsepower of at least 600 hp or three times the length of tow, whichever is greater. (f) Notice of Requirements. Notice that these rules are anticipated to be put into effect, or are in effect, will be given by: (1) Marine information broadcasts; (2) Notices to mariners; (3) Vessel Traffic Center advisories or upon vessel information request; and (4) Visual displays on top of the SPRR Bridge, consisting of: (i) Two vertically arranged red balls by day; or (ii) Two vertically arranged flashing white lights by night. Note: Visual displays are not shown during precautionary periods (when the Morgan City River Gauge reads 2.5 feet above mean sea level). However, precautionary notices will be issued via marine notice to mariners, notice to mariners, VTC advisories or vessel information requests, when water level remains at or above 2.5 feet. Visual displays are Class I, private aids to navigation maintained by SPRR Bridge. [CGD 90–020, 59 FR 36334, July 15, 1994, as amended by CGD 95–033, 60 FR 28333, May 31, 1995]
Title 33: Navigation and Navigable Waters
PART 165—REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS
Subpart F—Specific Regulated Navigation Areas and Limited Access Areas
Eighth Coast Guard District
§ 165.811 Atchafalaya River, Berwick Bay, LA-regulated navigation area.
Table 165.811(e)_Minimum Available Horsepower Requirement [The greater value listed.]------------------------------------------------------------------------ Daytime (sunrise to Nighttime (sunset to Direction of tow sunset) sunrise)------------------------------------------------------------------------Upbound................. 400hp or (Length of 600hp or (Length of tow_300ft) x 3. tow_200ft) x 3.Downbound............... 600hp or (Length of 600hp or (Length of tow_200ft) x 3. tow) x 3.------------------------------------------------------------------------Note: A 5% variance from the available horsepower is authorized.
