Chapter 10 Flashcards
Required for roof areas, courts and courtyards to collect stormwater and discharge the stormwater to approved point of disposal.
STORM DRAINAGE SYSTEM
Portion of the rainfall or other precipitation which runs off over the earth surface after a storm.
STORM WATER
A drain installed to receive water collecting on the surface of a roof and to discharge it into a leader, downspouts or conductor.
ROOF DRAIN
A pipe installed to drain water from the roof gutters or roof catchment to the storm drain or other means of disposal.
LEADER
Part of the plumbing system extending from the house drain at a point 0.60m from the outside face of the foundation wall of a building to the junction with the street sewer or to any point of discharge and conveying the drainage of one building site.
HOUSE SEWER
A common sewer directly controlled by public authority to which all abutters have equal rights of connections.
MAIN SEWER
A pipe or trough along the edge of a roof that carries rainwater away from a building
GUTTER
A system designed to carry rainfall runoff and other drainage.
STORM DRAINS
Types of Storm water Drainage system
DITCHES AND SWALES
CATCH BASINS
FRENCH DRAINS
SLOT DRAINS
PERMEABLE PAVEMENT
Uses porous material to turn the entire pavement surface into a stormwater drainage system.
PERMEABLE PAVEMENT
Newcomers to the stormwater drainage system family.
Use one or multiple slim openings with a catch basin underneath.
SLOT DRAINS
Perfect for keeping stromwater away from your foundation.
FRENCH DRAINS
Connect to your local sewage system and are most commonly seen along roads on the curb.
CATCH BASIN
Are both open channel systems designed to quickly move stormwater off the roads.
Another Question:
• Are V-Shaped open drain channels often seen on roadsides in the grass.
• Have a specific slope and bottom width, and they only work on certain soil types.
DITCHES AND SWALES
Where _________ project above a roof so as to permit storm water to drain to adjacent roof area below.
VERTICAL WALL AREAS
