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(Click for frequent words.) 76 weir 63 fishway 63 dams 61 dam 61 fishways 60 culverts 60 forebay 59 sluice gates 59 oxbows 59 groynes 57 dams spillways 57 Ohau Channel 57 spillway 57 rip rap 56 oxbow 56 stopbanks 56 coffer dam 56 sluices 56 diking 56 Borumba Dam 56 cofferdams 56 causeways 55 earthen embankments 55 canals 55 gabions 55 Great Ouse 55 salmon hatchery 55 ponds 55 headrace 55 Culverts 55 detention basins 54 dam spillway 54 riprap 54 silt buildup 54 spawning beds 54 stilling basin 54 millrace 54 sluice gate 54 culverted 54 redds 54 gabion 54 watercourse 54 Winnipeg floodway 54 rivers 53 lowhead dam 53 gabion baskets 53 Burdekin Falls 53 Houma Navigation Canal 53 Wyangala Dam 53 Lake Alexandrina 53 Trent Severn 53 coffer dams 53 cofferdam 53 river 53 diversion weir 53 Kaituna River 53 Embankments 53 estuary 53 boat ramps 52 Minidoka Dam 52 rearing ponds 52 migratory fish 52 Goolwa Channel 52 earthen dams 52 Puntledge River 52 dikes 52 Saugeen River 52 sluiceway 52 flood alleviation 52 drainage ditches 52 groyne 52 Argo Dam 52 waterwheels 52 watercourses 52 Manchhar 52 Swale Brook 52 acid sulphate soils 52 stone revetment 51 Mowamba 51 spillways 51 canal 51 migrating salmon 51 bridge abutments 51 Glines Canyon Dam 51 tributaries 51 tainter gates 51 tidally influenced 51 sediment basins 51 Borumba 51 retaining walls 51 sandbars 51 Manhan River 51 Ninigret Pond 51 Rangitaiki River 51 dams weirs 51 stormwater ponds 51 pumphouse 51 lakes 51 retention basins 51 waterways 51 beaver dams 51 Graveline Bayou 51 stopbank 51 reed beds 51 Sluice gates 51 Glines Canyon dams 51 tributary streams 51 Ngaruroro 51 revetments 51 Cannonsville 51 Petteril 51 Loddon River 51 tidal inlet 51 Winnicut River 51 stormwater outfalls 51 Brook tributary 51 reservoirs 50 steelhead smolts 50 Reservoir Dam 50 Little Assawoman Bay 50 dike 50 bridge pilings 50 tidal estuary 50 Norfork Dam 50 megalitre dam 50 levees floodwalls 50 mooring buoys 50 marker buoys 50 Ruamahanga River 50 Soda Springs Dam 50 embankments 50 sewerage reticulation 50 tributary creeks 50 embayments 50 sedimentation basin 50 Thurne 50 rock groynes 50 coho smolts 50 sedimentation basins 50 flume 50 Menai Strait 50 River Spey 50 drainage basins 50 breakwaters 50 Nottawasaga River 50 Dam spillway 50 breakwall 50 MR GO 50 Cleddau 50 floating pontoon 50 Hylebos Creek 50 instream flows 50 Red Bluff Diversion 50 fish hatchery 50 Menindee Lakes 50 reedbeds 50 silt laden 50 Portage Diversion 50 reservior 49 River Great Ouse 49 streambank 49 Condit Dam 49 Namakan 49 Loddon Avoca 49 tidal inlets 49 Kariba Dam 49 Lagunitas Creek 49 beaver ponds 49 wetland vegetation 49 undersized culverts 49 Sluice 49 tributary 49 canoe portage 49 spawning habitat 49 cui ui 49 inlet 49 hydro dams 49 coulee 49 Barwon River 49 dam removals 49 Googong 49 spillway gates 49 Barataria Basin 49 spawning gravels 49 Wivenhoe dam 49 mudflat 49 Dalles Dam 49 billabongs 49 hatchery 49 Tsolum River 49 cumecs 49 docks piers 49 cairns 49 tailrace 49 headwater 49 anadromous fish 49 flashboards 49 River Stour 49 millpond 49 sedimentation pond 49 fish weirs 49 Hinze Dam 49 lagoons 49 drainage culverts 49 headworks 49 Baffle Creek 49 brown trout spawn 49 Clutha River 49 Lake Rotoiti 49 sedimentation 49 Putah 49 boat ramp 49 jetties 49 silt fences 49 Wyaralong 49 siltation 49 mussel beds 49 smolt 49 Coleroon 48 Alviso Slough 48 Wynoochee 48 River Aln 48 Rangitaiki Plains 48 Waitaki River 48 Sebasticook River 48 Leaburg Lake 48 railroad trestles 48 sewage outfalls 48 Yellow Breeches Creek 48 Pepacton 48 brooks streams 48 Prickly Pear Creek 48 Lake Koocanusa 48 Sooley Dam 48 elver 48 Schoharie Reservoir 48 Okareka 48 Great Crested Newts 48 Diversion Canal 48 resacas 48 oxidation pond 48 tidal rivers 48 limestone boulders 48 tidal flushing 48 waterway 48 SunWater 48 river catchments 48 Cheoah 48 silting 48 Bulkley River 48 Lower Monumental 48 Waiau River 48 effluent ponds 48 Rio Cobre 48 revetment 48 headgates 48 riparian vegetation 48 oxbow lakes 48 Otonabee River 48 vegetated buffers 48 rockpiles 48 Rivanna River 48 smolts 48 Youghiogheny rivers 48 riverbank 48 wooden footbridge 48 Torrumbarry 48 outfall 48 Tallowa 48 Jianjiang River 48 impoundments 48 Rapids Dam 48 Dams 48 headpond 48 steel girder bridge 48 Delayed Harvest 48 Beaverkill 48 pontoon 48 slackwater 48 River Thurne 48 Soai Rap 48 Warrego River 48 Campaspe Loddon 48 Nippersink Creek 48 Llyn Padarn 48 Chartiers Creek 48 dredge sediment 48 Nashwaak River 48 stone abutments 48 Megunticook River 48 hydro electric dams 48 flumes 48 culvert 48 Diversion Dam 48 Tolna Coulee 48 silt 48 endangered coho salmon 48 instream 48 inlets 48 Murrumbidgee River 48 Kaweah River 48 estuaries 47 Trent Severn Waterway 47 River Wensum 47 Oostanaula 47 clarifiers 47 Rotorua lakes 47 emergent vegetation 47 Retaining walls 47 Copeton 47 riverbanks 47 Lower Monumental Dam 47 aquatic vegetation 47 trout hatcheries 47 River Findhorn 47 oxidation ponds 47 beaver deceivers 47 fishpens 47 Puntledge 47 Manchhar Lake 47 cfs 47 Severn Estuary 47 elvers 47 timber pilings 47 Camanche Reservoir 47 Lookout Shoals 47 spawning tributaries 47 aqueduct 47 Pesanggrahan River 47 bailey bridge 47 Rangitata River 47 Pompton Lake 47 mainstem 47 Artificial reefs 47 rock revetment 47 Wallaga 47 mussel farms 47 steel pilings 47 footbridges 47 Cutthroat trout 47 Dam 47 flowage 47 river Jhelum 47 Opihi River 47 River Lossie 47 Potter Heigham 47 coulees 47 Ruamahanga 47 creek 47 river drainages 47 Corte Madera Creek 47 wooden boardwalk 47 Ballville Dam 47 Camanche Dam 47 fish attractors 47 Jindabyne Dam 47 silt traps 47 steelhead spawning 47 Snake River dams 47 pumpback 47 Elwha dams 47 geotextile bags 47 Tukituki River 47 Stonycreek River 47 Waranga Basin 47 artificial oyster reefs 47 tidal lagoons 47 Kalu Ganga 47 Brahmaputra River 47 salmon smolt 47 Stormwater drains 47 Berms 47 root wads 47 watermains 47 Reservoirs 47 backwater lakes 47 Pejar 47 Rakaia rivers 47 Summersville Lake 47 Wakool River 47 Tallowa Dam 47 Rangitata 47 gillnets 47 tidal estuaries 47 tidal wetland 47 Levisa 47 penstocks 47 razorback suckers 47 Albeni Falls Dam 47 Leaburg Dam 47 GWMWater 47 lake 47 outfalls 47 lochs 47 tributary rivers 47 drainage swales 47 Retention ponds 47 Nicomekl River 47 frazil ice 47 Waiwhakaiho River 47 wooden walkways 47 South Fork Rivanna 47 auxiliary spillway 47 whitebait 47 miter gates 47 streambank stabilization 47 bulkheads 47 riverbed 47 geotubes 47 Qu'Appelle River 47 Meander Dam 47 Burrinjuck Dam 47 redband 46 Cressbrook Dam 46 Oreti River 46 heavily silted 46 sediment buildup 46 Fitzroy River 46 cockle fishery 46 irrigation canals 46 Sukkur Barrage 46 Morganza Floodway 46 piers docks 46 Hatea River 46 alewife 46 Condamine Balonne 46 manhole lids 46 Englebright Dam 46 oshanas 46 soakaway 46 stormwater drains 46 rock revetments 46 Cannonsville Reservoir 46 North Fork Toutle 46 Godavari river 46 Deshka River 46 dredged silt 46 Conneaut Creek 46 humpback chub 46 Myall River 46 raw sewage discharges 46 mysis shrimp 46 outfall canals 46 Tarbela reservoir 46 truss bridge 46 Necanicum 46 McClusky Canal 46 streamside vegetation 46 Kelani River 46 rubber bladders 46 Blanchetown 46 Tahkenitch 46 johnboats 46 Dikes 46 Sengekontacket 46 Ragged Mountain Reservoir 46 Pascack Brook 46 Ogeechee River 46 shortnose sturgeon 46 sewage effluent 46 River Irwell 46 canoeists 46 reservoir 46 saltmarsh 46 geotextile fabric 46 salinity intrusion 46 Cockroach Bay 46 Mamquam Blind Channel 46 bascule bridge 46 Lake Mokoan 46 dyking 46 retention ponds 46 Tauranga Taupo 46 clam chum 46 floodplains 46 cockle beds 46 outfall pipes 46 Wivenhoe Dam 46 Rim Canal 46 Cressbrook 46 Sungai Klang 46 sandbanks 46 redband trout 46 Stibbington 46 Teztan Biny 46 breakwater 46 piezometers 46 creeks 46 floating pontoons 46 Hominy Creek 46 headgate 46 towpath 46 freshwater 46 Fuyuan waterway 46 Tailwaters 46 parapet walls 46 Taku Inlet 46 salmon spawning 46 borefield 46 Naches River 46 Gavins Point 46 riverways 46 bunding 46 aquatic habitat 46 Saugatuck Reservoir 46 piers 46 Tauranga Harbour 46 Croton Dam 46 waterbody 46 Loch Lochy 46 concrete pilings 46 pondage 46 Gilboa Dam 46 breakwalls 46 tailwater 46 Macquarie Marshes 46 drainage 46 waterflow 46 Ghaggar 46 malarial swamp 46 Kickemuit River 46 Three Gorges reservoir 46 Shellmouth Dam 46 River Nidd 46 Palar river 46 threatened coho salmon 46 levees 46 MNV drain 46 acquifer 46 Taneycomo 46 Harangi 46 subsurface drainage 46 Kennebecasis River 46 shallow riffles 46 Hardap Dam 46 Goldfields Superpipe 46 driftboats 46 reed bed 46 Woonasquatucket 46 waterwheel 46 River Nith 46 Bayou Chene 46 dock pilings 46 mussels 46 revegetated 46 Yolo Bypass 46 Floodway 46 Forebay 46 Impoundment 46 Lavernock Point 46 Te Pirita 46 Tongariro River 46 eel traps 45 eelgrass beds 45 steelhead trout 45 foreshores 45 Kaskaskia River 45 shoaling 45 Campaspe rivers 45 Chenab rivers 45 streambed 45 Nacimiento Dam 45 stormwater basins 45 stocked rainbows 45 Bighorn River 45 hydro electric dam 45 Boat Ramp 45 Ciliwung River 45 silts 45 waterholes 45 distributary 45 artesian wells 45 Mianus River 45 Great Ruaha 45 Skeena River 45 curly leaf pondweed 45 Llangollen Canal 45 streambanks 45 corrugated metal pipe 45 Trout Hatchery 45 tidal waters 45 Lake Sabbatia 45 lifebuoys 45 Feeder Canal 45 flood proofing 45 Flood Alleviation Scheme 45 River Nore 45 tidal creek 45 Lake Kaweah 45 Pequabuck River 45 Bassenthwaite Lake 45 River Yare 45 Ken Betwa 45 Whychus Creek 45 Waihou River 45 Winnibigoshish 45 Mispillion River 45 Gnangara Mound 45 clam beds 45 Broads Authority 45 Minjiang River 45 Steelhead anglers 45 shad herring 45 Bayou Manchac 45 Floodwalls 45 floodway 45 gulleys 45 Lake Eildon 45 floating docks 45 Chef Menteur Pass 45 interpretive signage 45 Houma Navigation 45 Loyalhanna Creek 45 sediment ponds 45 Winnipesaukee River 45 Meager Creek 45 lobster pots 45 discharging effluent 45 riparian zones 45 Champlain Canal 45 Somass River 45 catchment 45 silted 45 Tenmile Creek 45 Vaal dam 45 sediment 45 Lake Zoar 45 yellowbelly 45 wadeable 45 freshwater marsh 45 spawning salmon 45 Cheatham Dam 45 Googong Dam 45 River Exe 45 Pejar Dam 45 Thurmond Dam 45 Kopu Bridge 45 whitewater boating 45 Hebgen Dam 45 native westslope cutthroat 45 motte 45 settling ponds 45 shoreline erosion 45 Chaffey Dam 45 weedbeds 45 wetland 45 crappie perch 45 Chowilla 45 Ocklawaha River 45 Floodplains 45 beaver lodges 45 concrete pontoons 45 Paroo River 45 Firesteel Creek 45 anicut 45 Coon Rapids Dam 45 tailwaters 45 channelization 45 Ragged Mountain Dam 45 Saugatucket River 45 river Baitarani 45 River Deveron 45 ebb tides 45 flood mitigation 45 nesting peregrine falcons 45 Rim Shoals 45 Hydroelectric dams 45 Lillooet River 45 River Ehen 45 hydropower dams 45 Tapi river 45 grout curtain 45 Deshka 45 Thermalito Afterbay 45 Navigation Canal 45 Wainiha 45 riparian corridors 45 nonnative fish 45 Maribyrnong River 45 drains culverts 45 Esopus Creek 45 Nakdong 45 Gatun Lake 45 berms 45 Bogachiel Calawah 45 Loch Torridon 45 Jinsha River 45 Marmot Dam 45 Mararoa 45 Lough Ree 45 portaged 45 Issaquah Salmon Hatchery 45 drystone walls 45 Shannon Erne Waterway 45 Araz rivers 45 Kakanui River 45 Nicomekl 45 hydroelectric turbines 45 discharge effluent 45 creek crossings 45 Octoraro Creek 45 Sungai Johor 45 Presumpscot River 45 oversize sturgeon 45 Vakhsh River 45 fine grained sediment 45 Bhakhra 45 navigable canals 45 stormwater pipes 45 Herbert Hoover Dike 45 percolation tanks 45 Jhelum river 45 Coxs River 45 tarn 45 Saptakosi 45 Veazie Dam 45 levee 45 Amaravathy 45 catchment basins 45 sand dredged 45 portages 45 Queets River 45 Moutoa 45 alewives 45 weed harvester 45 Lahontan cutthroat 45 homemade dipnetting pole 45 bankside 45 GPID 45 pearl mussels 45 Danjiangkou reservoir 44 Zambezi river 44 Dhaleswari 44 Hanjiang River 44 farther downriver 44 dredgings 44 Hawkesbury Nepean River 44 Shakidor dam 44 browns rainbows 44 Fourche Creek 44 Skokomish River 44 Calumet Sag Channel 44 Bogachiel River 44 damming 44 Chobe River 44 Somasila 44 Neponset River 44 Sheepscot River 44 Thorthormi 44 Skokomish 44 pallids 44 breakline 44 removing contaminated sediments 44 tule 44 River Teme 44 Banklick Creek 44 #cfs [002] 44 Mooloolah River 44 Maitai River 44 ray finned 44 drainages 44 Subarnarekha river 44 jetty 44 slipway 44 Tekeze 44 Lake Eucumbene 44 Georgiana Slough 44 quay walls 44 Petitcodiac River 44 dykes 44 uplake 44 Steep slopes 44 Coorong 44 Yeongsan 44 lampreys 44 lifebelts 44 Caxambas Pass 44 Fryingpan River 44 sewage lagoon 44 storm sewers 44 trestle bridge 44 Brevort Lake 44 Wairau River 44 rapids 44 Cohansey River 44 drainage canals 44 Elevenmile 44 Embrey Dam 44 salmon 44 rills 44 interceptor sewers 44 Shashe Dam 44 dredge spoil 44 watersheds 44 Obi Obi 44 plankhouse 44 Cataract Gorge 44 navigable rivers 44 dammed rivers 44 Bushkill Creek 44 dam spillways 44 Raquette River 44 abutments 44 lakes Keowee 44 re vegetating 44 Braid Burn 44 riparian buffer 44 inshore waters 44 trammel nets 44 vegetative buffers 44 grilse 44 Runge Hollow 44 irrigation ditches 44 Eamont 44 shallow weedy 44 hatchery trout 44 LMDT 44 salmon spawning grounds 44 pontoons 44 Mattaponi River 44 Portage Diversion channel 44 rivermouth 44 Masinga dam 44 floodways 44 caddis flies 44 headlands 44 Pental Island 44 silt fencing 44 river Sutlej 44 Tuckasegee River 44 Sandbars 44 wetlands 44 Lake Benmore 44 Wimmera River 44 Little Susitna 44 Kilarc 44 silted rivers 44 Minnehaha Creek 44 Kalamalka Lake 44 retention basin 44 hydropower dam 44 eels 44 Souris River 44 Welland Canal 44 Keepit Dam 44 nonnative trout 44 River tributary 44 beaver dam 44 Yellowtail Dam 44 Tuojiang River 44 headwaters 44 Matilija Dam 44 dune vegetation 44 lagoon 44 fishponds 44 Huddersfield Narrow 44 estuarine habitat 44 Snake River Plain Aquifer 44 River Nzoia 44 Opuha 44 Pond Dam 44 seine nets 44 penstock 44 reticulated sewerage 44 hydroelectric dams 44 Bog Walk gorge 44 Loch Sunart 44 Tulloch Reservoir 44 Alligator Creek 44 shad minnows 44 stillwaters 44 cumec 44 Glendo Reservoir 44 Cahora Bassa dam 44 beavers 44 Red River Floodway 44 Baakens River 44 Grand Anicut 44 inflatable bladders 44 aquifer recharge 44 Tillegra 44 Rakaia River 44 Tohickon Creek 44 dredged sediment 44 freshwater mussel 44 sluice 44 Pardee Reservoir 44 Afterbay 44 Shotover River 44 Tallapoosa River 44 hydroplant 44 tidal barrages 44 stormwater outfall 44 Pequest River 44 Beas rivers 44 Lake Glenmaggie 44 Kopu 44 downlake 44 wildlife corridors 44 Nissitissit River 44 Severn estuary 44 Netley Creek 44 shorelands 44 Congamond 44 Gandak 44 Waipaoa 44 Tuggerah Lake 44 Han Nakdong Geum 44 grassy shorelines 44 Creek tributary 44 Waioeka 44 Girty Run 44 Harney Pond 44 Mersey Canal 44 dredging 44 Lough Mask 44 saltmarshes 44 Lake Gatun 44 holdover trout 44 smelt dipping 44 Pulangi River 44 Llagas Creek 44 Ausable River 44 estrogenic chemicals discovered 44 manmade pond 44 bulkheading 44 salmon smolts 44 eel fishery 44 gabion wall 44 secondary clarifiers 44 Ganaraska River 44 Wreck Pond 44 Bighead carp 44 bascule 44 dammed 44 Uvas Creek 44 distributaries 44 Reservoir 44 vegetated buffer 44 Lake Mulwala 44 Friant Kern Canal 44 Calawah 44 brown trout fishery 44 bonytail 44 River Ericht 44 Mokelumne River 44 wooden trestles 44 cohos 44 pondless waterfalls 44 Beaverdam Creek 44 Ranganadi 44 Tuolumne River 44 sewer pipes 44 causeway 44 diked 44 upstream 44 valley irrigation ditches 44 backwater sloughs 44 Elkhead Reservoir 44 Afon 44 Warm Springs Dam 44 Plainwell Dam 44 Brackish water 44 effluent reuse 44 Nestucca River 44 Mokihinui 44 Coliban 44 roadbeds 44 spreader canal 44 ice jams 44 nontidal 44 jigging minnows 44 Hurunui River 44 Nescopeck Creek 44 inshore fisheries 44 Wilson phalaropes 44 Chagres River 44 Bayou D' Arbonne 43 Markland Dam 43 sturgeon spawning 43 Assiniboine rivers 43 steep embankments 43 redfin 43 Rohri Canal 43 Kharkai 43 sedimentation ponds 43 Middle Fork 43 Manchar Lake 43 fyke nets 43 Pawtuxet Cove 43 Culgoa 43 Raritan Canal 43 sand berm 43 Taunsa Barrage 43 Containment booms 43 Kuiseb River 43 aquatic weeds 43 Watsonville Slough 43 mudflats