Rain gutter
Rain gutter joint
Rain gutter shield having a porous, non-woven polymeric fiber sc
Rain water roof outlet or similar for a building
Rain water roof outlet or similar for a building
Raingutter leaf guard and cleaning device
Rapid emergency dam and method of construction
RCC dam construction and method
Reconfigurable barrier system
Reconfigurable barrier system
Rectilinear culvert structure
Reducing leakage through sandbag dikes using a bentonite or othe
Reinforced composite material
Reinforced metal box culvert
Reinforced soil arch
Retaining wall
Reticulately reinforced earthen dams and method for providing re
Reusable portable flexible fillable barrier and method of applic
Rising and falling weir of flexible membrane
River bank flood barrier