33 CFR § 401.48 - Turning basins.
No vessel shall be turned about in any canal, except:
(a) With permission from the traffic controller; and
(b) At the locations set out in the table to this section.
1. South Shore Canal:
(a) Turning Basin No. 1—Opposite Brossard.
(b) Turning Basin No. 2—Between Lock 7 and the Guard Gate Cut for vessels up to 180 m in overall length.
2. Welland Canal:
(a) Turning Basin No. 1—Opposite St. Catharines Wharf for vessels up to 107 m in overall length.
(b) Turning Basin No. 2—Between Lock 7 and the Guard Gate Cut for vessels up to 180 m in overall length.
(c) Turning Basin No. 3—Immediately south of Port Robinson (Mile 13).
(d) Turning Basin No. 4—North of Lock No. 8 for vessels up to 170 m in overall length.
(e) For vessels up to 80 m in overall length.
(1) North end of Wharf No. 1,
(2) Tie-up wall above Lock 1,
(3) Tie-up wall below Lock 2,
(4) Wharf No. 9,
(5) Between the southerly extremities of Wharves 18–2 and 18–3.