Related by context. Frequent words. (Click for all words.) 69 navigable waters 64 waterways 59 inland waterways 59 waterway 57 inland waterway 55 navigable 52 watercourse 51 lakes 51 shoreline 51 rivers 50 rivers lakes 50 seaway 50 canals 49 river 48 wetlands 48 estuary 48 tributaries 47 inland waters 47 watersheds 47 shorelines 46 lakes rivers 46 riparian 46 coastal waters 46 Great Lakes basin 46 headwaters 46 wetland 46 coastline 45 causeways 45 estuaries 45 waters 45 canal 45 watercourses 44 floodplain 44 tidelands 44 tidewater 44 wharfs 44 lake 44 Mississippi River 44 boat ramps 44 recreational boaters 43 drainage basin 43 aquatic habitat 43 outfalls 43 dams 43 inland lakes 43 freshwater lakes 43 boating 42 Clean Water Act 42 estuarine 42 navigational aids 42 recreational boating 42 marinas 42 trout streams 42 coastlines 42 landmass 42 inlets 42 freshwater 42 river basins 42 beaches 42 spawning habitat 42 riparian habitat 42 dewatered 42 St. Lawrence Seaway 42 lakes ponds 42 interstate highways 42 waterfronts 41 floodplains 41 Erie Canal 41 federally recognized 41 piers 41 river basin 41 riverine 41 polluted rivers 41 territorial waters 41 navigability 41 basin 41 federally designated 41 creek 41 ports 41 aquatic ecosystems 40 creeks 40 dredged material 40 Waterways 40 anchorages 40 underground aquifer 40 wildlife refuges 40 docks 40 shipping lanes 40 marshland 40 reservoirs 40 Scenic Rivers 40 marshy 40 shellfish harvesting 40 basins 40 peninsulas 40 shoreland 40 islands 40 weirs 40 roadways 40 mud flats 40 tributary