3.4.6 Navigable Waterways or Waterway Activity
The Maritime Division (MRD) must be included in all project planning, research, construction, or maintenance activities for projects that directly or indirectly affect navigable waters or waterway activity.
Navigable waters of the United States are those waters that are subject to the ebb and flow of the tide and/or are presently used, have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.