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Lead guttering: slate and pitched valley gutter flow into parapet gutter, with downpipe and overflow Eaves gutter and downpipe Decorative lead hopper head dated 1662, Durham Castle. A rain gutter, eavestrough, eaves-shoot or surface water collection channel is a component of a water discharge system for a building. [1]
Copper Leader Head at Penn's Quadrangle, Philadelphia 1894 Copper Leader at Shofuso Japanese House and Garden in Philadelphia. The purpose of a leader head is to help transfer excess water from the roof onto downspouts, thus preventing the gutters from overflowing and water washing over the walls, which is a common occurrence in areas susceptible to heavy rain cycles.
The purpose of a downspout is to allow water from a gutter to reach the ground without dripping or splashing down the building structure. Downspouts are usually vertical and usually extend down to ground level , although may be routed at an angle to avoid architectural features and may discharge onto an intermediate roof.
This is because channellizing the flow in a concrete chute often made flooding worse. [4] [5] [6] Really bad floods are caused by really brief spikes of river level. Channellization in concrete chutes speeds the water up and makes the flood peak higher, while slowing the water down spreads the flow out over time and blunts the flood peak.
Storm drain grate on a street in Warsaw, Poland Storm drain with its pipe visible beneath it due to construction work. A storm drain, storm sewer (United Kingdom, U.S. and Canada), highway drain, [1] surface water drain/sewer (United Kingdom), or stormwater drain (Australia and New Zealand) is infrastructure designed to drain excess rain and ground water from impervious surfaces such as paved ...
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