The speed limit for the areas described in this regulation is 6 knots at all times. East Area. The east construction area encompasses all of the waters of the Patapsco River enclosed by a line beginning at a point defined by Lat. 39°12.892' N, Long. 76°31.423' W; then running 321° True to a point defined by Lat. 39°13.276' N, Long. 76°31.827' W; then running 46° True to a point defined by Lat. 39°13.575' N, Long. 76°31.428' W; then running 141° True to a point defined by Lat. 39°13.191' N, Long. 76°31.025' W; then running 226° True to the point of beginning. West Area. The west construction area encompasses all of the waters of the Patapsco River enclosed by a line beginning at a point defined by Lat. 39°12.574' N, Long. 76°31.828' W; then running 320° True to a point defined by Lat. 39°12.953' N, Long. 76°32.238' W; then running 45° True to a point defined by Lat. 39°13.158' N, Long. 76°31.976' W; then running 141° True to a point defined by Lat. 39°12.773' N, Long. 76°31.572' W; then running 225° True to the point of beginning.