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It's the Law

Obstructing Navigation

It is illegal to:

  • Anchor a vessel in the traveled portion of a river or channel that will prevent or interfere with any other vessel passing through the same area.
  • Moor or attach a vessel to a buoy (other than a mooring buoy), beacon, light, or any other navigational aid placed on public waters by proper authorities.
  • Move, displace, tamper with, damage, or destroy any navigational aid.
  • Obstruct a pier, wharf, boat ramp, or access to any facility.
  • Place an obstruction in the water that is dangerous to others’ navigation.
  • Cut loose any vessel that is moored or at anchor without the permission of the owner.
  • Anchor overnight on any inland body of water.
  • Place a swim line or swim raft on any public water without first obtaining a permit. For more information please call the Marine Patrol at 603-293-2037 or visit