33 CFR §162.110
- (a)No vessel greater than 100 feet in length may exceed 8 miles per hour in Duluth-Superior Harbor.
- (b)In the Duluth Ship Canal:
- (1)No vessel may meet or overtake another vessel if each vessel is greater than 150 feet in length (including tug and tow combinations).
- (2)An inbound vessel has the right of way over an outbound vessel.