How to address the drainage system in Nigeria

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Drainage systems must be able to collect water and transport water. Hence multi-flow drainage systems are ideal for drainage. It is used beneficially in residential, along driveways and sidewalks, near foundations and retaining walls and under basements.

The temporal way of addressing drainage system for easy flow, is that government, road construction contractors, landscape architects and homeowners of a build should construct drainage across their building, this can be achieve by standard gutters with roads.

In the medium to long term, let there be a functional drainage system. Government should map out where drainage, canal are across the flood prone areas to deter prospective property buyer from encroaching on drainage and building on flood paths.

The designer of drainage system should be familiar with land use patterns, the nature of the physical development in the area(s) to be served by the storm drainage system, local storm water management plans, and ultimate pattern of drainage (both overland and by storm drains) to existing outfall locations.  Onset review and actual topographic survey data are often needed for storm drain system for easy flow of water.

Drainage landscape must be put in place with established turf, multi-flow becomes an even more attractive solution to drainage problems due to its unobtrusive installation method. Also all the big trees located near the drainage should be cut down because it poses a serious risk of tree roots penetration.

A typically extra heavy cast iron pipe should be use for drainage system for easy flow of water because heavy cast iron pipe has greater surface area than traditional round pipe. Cast iron pipe is designed to withstand heavy loads and is not going to collapse due to heavy surface loads in shallow installations or due to earth weight in deep installations.

Residents must develop flood management skills and techniques. The flood management skill includes immediate removal of dirt from drainage water surface.

How to identify block drainage, when area that is clogged is difficult to pinpoint, you need a professional plumber who can utilize a sewer inspection camera. Those who build on waterways should be given eviction notice, relocated to safer environment while the illegal structures should be demolished.

In conclusion, government should provide sketches indicating watershed areas and land use, existing drainage systems, plan and profile of the roadway, street and driveway layout, underground utility locations, overhead sign foundation locations, locations of proposed retaining walls and bridge with respect to the easy flow of water. With this sketch, the home-owners, construction contractor of drainage system designer is able to proceed with the detailed process of storm drainage design calculations, adjustments, and refinements in the future.

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