| Clog |
| Weir |
| Block |
| Sailor |
| Impede |
| Stopper |
| Barrier |
| Stop up |
| Obstruct |
| Block up |
| Farm mom |
| Hold back |
| Broodmare |
| Oahe, e.g. |
| Ocean wall |
| Waterwork? |
| Beaver job |
| Power tool |
| Lamb ma'am |
| Lake maker |
| Water gate |
| Dental ___ |
| Obstruction |
| River sight |
| Farm female |
| Aswan e.g. |
| Boulder ___ |
| Foal's mama |
| Hoover ____ |
| Oahe is one |
| Rain check. |
| Beaver work |
| T.V.A. unit |
| River block |
| TVA project |
| Water board |
| Sire's mate |
| Farm mother |
| Power source |
| Water holder |
| Flow stopper |
| Flow checker |
| Grand Coulee |
| Mare to foal |
| Dental guard |
| Flow blocker |
| Lake creator |
| Hoover, e.g. |
| Put a stop to |
| Water stopper |
| River barrier |
| Water barrier |
| River blocker |
| Block (river) |
| Boulder e.g. |
| Hoover is one |
| Spillway site |
| Trotter's mom |
| Animal mother |
| Aswan project |
| Mica, for one |
| TVA structure |
| Flood control |
| River project |
| Spillway spot |
| Water blocker |
| Dental device |
| Equine parent |
| Equine mother |
| Beaver's home |
| Beaver's work |
| River stopper |
| Foal's mother |
| Lamb's mother |
| It holds water |
| Aswan for one |
| Backup device? |
| Gatehouse site |
| Horse's mother |
| River blockade |
| River obstacle |
| Security gate? |
| Stop for water |
| Water checker? |
| Aswan landmark |
| T.V.A. feature |
| Stream blocker |
| Stream stopper |
| Beaver barrier |
| River blockage |
| Beaver project |
| Water container |
| Beaver's oeuvre |
| Beaver's output |
| Current checker |
| Current stopper |
| Glen Canyon ___ |
| Hoover, notably |
| Oxbow, in Idaho |
| Restrain a flow |
| River structure |
| Aswan structure |
| Beaver creation |
| Certain blocker |
| Flowage stopper |
| Hoover or Aswan |
| Lake Mead sight |
| Beaver endeavor |
| Check the water |
| River regulator |
| Beaver building |
| Aswan or Hoover |
| Reservoir maker |
| Hoover, for one |
| It'll hold water |
| Channel changer? |
| Stop the flow of |
| Beaver or Hoover |
| Beaver specialty |
| Flow obstruction |
| Fort Peck is one |
| Hoover or beaver |
| Hoover or Cougar |
| Hoover or Norris |
| Livestock mother |
| Mica or Gardiner |
| Pedigree listing |
| Part of T. V. A. |
| Power plant site |
| Reservoir's edge |
| Somerset, in Vt. |
| Waterway barrier |
| Waterway blocker |
| Beavers' project |
| Fish ladder site |
| Gardiner or Mica |
| Beaver's barrier |
| Flood controller |
| Spillway setting |
| Keep from flowing |
| Aid in irrigation |
| Beaver's business |
| Feature of a moat |
| Flood-control aid |
| Gardiner, for one |
| Glen Canyon, e.g. |
| Hoover or Shasta. |
| Hydroelectric ___ |
| Hydropower source |
| Keep from running |
| Stop from running |
| Sugar "Hoover ___ |
| Beaver's blockade |
| Beavers' creation |
| Reservoir creator |
| Barricade (stream) |
| Beaver achievement |
| Beaver's barricade |
| Beavers' structure |
| Create a reservoir |
| Fish ladder's spot |
| Fort Peck, for one |
| Four-legged mother |
| Hydro plant locale |
| Maternal quadruped |
| Barrier in a river |
| Beaver's construct |
| Beavers' handiwork |
| Fish ladder locale |
| Hungry Horse, e.g. |
| Sire's counterpart |
| Stream obstruction |
| Work like a beaver |
| Grand Coulee, e.g. |
| Electricity source |
| A river runs to it? |
| Beaver architecture |
| Container of water? |
| Flaming Gorge, e.g. |
| Fordham in Illinois |
| Hoover construction |
| Hoover or Roosevelt |
| Hoover, for example |
| Hungry Horse is one |
| Leave it to beavers |
| Levee's big brother |
| Obstacle for a fish |
| Reservoir structure |
| Beaver's production |
| It checks the water |
| Lake maker, perhaps |
| Blockade in a river |
| Fish ladder setting |
| Roosevelt or Hoover |
| Beaver construction |
| Alabama's Wilson ___ |
| Block a river's flow |
| Challenge for salmon |
| Feature of Lake Mead |
| Glen Canyon, for one |
| Hydroelectric option |
| Mother among mammals |
| Rain check, at times |
| Beaver creek project |
| Hydropower structure |
| Lake former, perhaps |
| Rain check of a sort |
| Public works project |
| Beaver-built barrier |
| Three Gorges project |
| Any of the TVA chain. |
| Barrier on a waterway |
| Beavers' construction |
| Certain water blocker |
| Checking construction |
| Cow or ewe, sometimes |
| Feature of a millpond |
| Flood control project |
| Its water resistant |
| Johnstown's weak spot |
| Salmon ladder setting |
| The Gardiner, for one |
| Three Gorges, for one |
| Water turbine setting |
| Water control project |
| What Sen. Norris gave |
| Coolidge or Roosevelt |
| Glen Canyon structure |
| Hoover, for instance. |
| Hungry Horse, for one |
| It can hold its water |
| Grand Coulee or Aswan |
| Thoroughbred's mother |
| Grand Coulee, for one |
| Hydroelectric project |
| Beaver's brook blocker |
| Big electricity source |
| Obstruction for salmon |
| Beaver-built barricade |
| Hydroelectric facility |
| Flood-control structure |
| Barrier with a spillway |
| Happy Mondays "Kuff ___ |
| Hoover or Tarbela, e.g. |
| Hydroelectric structure |
| It goes against the flow |
| One that's holding back? |
| River-blocking structure |
| Barrier built by beavers |
| China's Three Gorges ___ |
| Hydroelectric power site |
| Civil engineering project |
| Elastica "Mad Dog God ___ |
| Fort Peck ___, in Montana |
| Hoover or Roosevelt, e.g. |
| Provider of flower power? |
| It holds back river water |
| Pedigree papers line item |
| Structure with a spillway |
| Go-with-the-flow thwarter |
| It may get into deep water |
| Montana's Hungry Horse ___ |
| Nobelist in Medicine: 1943 |
| One going against the tide |
| One may be made by beavers |
| Wall that holds back water |
| Corps of Engineers project |
| Hydroelectricity generator |
| Structure built by beavers |
| Hydroelectric power source |
| Part of a horse's pedigree |
| Hydroelectricity structure |
| Grand Coulee or Aswan, e.g. |
| Nevada/Arizona's Hoover ___ |
| River-blocking construction |
| China's Three Gorges project |
| Gardner or Bennett structure |
| Gardner or Mica, for instance |
| Power provider with spillways |
| Source of hydroelectric power |
| Structure that blocks a river |
| What beavers build in a river |
| China's Three Gorges, for one |
| Structure with water turbines |
| Bureau of Reclamation project |
| Arizona's Glen Canyon, for one |
| Hungry Horse or horse's mother |
| Result of a beaver's hard work |
| Thing that can be very sticky? |
| Word after Gardiner or Bennett |
| River barrier built by beavers |
| Oroville, Three Gorges or Aswan |
| Structure that holds back water |
| Woody Guthrie "Grand Coulee ___ |
| What a beaver builds in a river |
| Security gate for flood of fans? |
| Female parent in the animal world |
| Project of the Corps of Engineers |
| Female parent of a lamb or a calf |
| Structure for hydroelectric power |
| Datum on a horse's pedigree papers |
| Roller-compacted concrete structure |
| Structure built to hold back a river |
| System of a Down song that obstructs? |
| Hoover ___ (Colorado River structure) |
| Block up, as one's feelings of sadness |
| Construction that stops a river's flow |
| Toad the Wet Sprocket "___ Would Break |
| Man-made (or beaver-made) river barrier |
| Structure that blocks the flow of water |
| It can control the flow of water in a river |
| Aswan High ___ (structure on the Nile River) |
| Structure whose name might make kids giggle (3) |
| Grand Coulee ___ (structure on the Columbia River) |
| Hoover ___ (hydroelectric structure on the Colorado River) |
| Hoover ___ (hydroelectric power source on the Colorado River) |
| Hoover ___ (power-generating structure on the Colorado River) |
| Three Gorges ___ (hydroelectric structure in the Yangtze River) |
| Hoover ___ (Colorado River structure that generates electricity) |