Investigation Into The Causes Of Blocked Drainage, Canal And Culvert In Ilorin-west Local Government Area
[A CASE STUDIES OF AGBO-OBA, OJA-TUNTUN AND SAWMILL]

CHAPTER FIVE
5.0    CONCLUSION AND RECOMMENDATION
5.1     CONCLUSION
The level of awareness of waste collection services and waste management regulations were relatively low in Abgo-oba, Oja-tuntun and Sawmil, the percentage of those who use indiscriminate solid waste disposal methods like open dumping, open burning and dumping in drainages, canal and culvert were higher. Educational status, age, gender, cost of waste collection services and the location of resident among others were the factors influencing quantity of waste generated and disposal method in Agbo-oba, Oja-tuntun and Sawmil in Ilorin west local government area.
Base on the fact collected from engineers’; these indicated that the drainage system provided for some area in Ilorin-west local government road was inadequate and therefore inappropriate. The magnitude of the water from the surrounding area in which the road is situated was overlooked during design. They also indicated that studies that were carried out before designing the road were not sufficient to satisfactorily ascertain the amount of water that would cross the road at a point in time and therefore the design lacked capacity to adequately drain the runoffs which hindered debris causing the drainage, canal and culvert to block during the storm.    However, poor workmanship (seen through poorly worked stone pitching, embankment, non channelized drainage and gabions) by the contractor during construction and poor maintenance also contributed to the drainage problems in Ilorin west local government drainage, canal and culvert system.
    A significant proportion of the respondents living in the area or either uses the road every day or twice a week, shows that 20% 0f the respondents claimed that blockage in drainage are caused by lack of inadequate drainage, 40% of respondents claimed that blockage are caused by illegal dumping of refuses along the line of drain which is the principal causes of flooding, 20% of respondents claimed that blocked is caused by illegal structure, 10% of respondents claimed that blockage is caused by non-channelization.
 Furthermore, the highest percentage of causes of blocked drainage, canal and culvert in Agbo-oba, Oja-tuntun and Sawmil in Ilorin west local government area were caused by illegal dumping of refuse into the drainage channel such as; food waste, paper and carton waste, nylon and polythene waste, fruit and vegetable waste, tin and can waste e.t.c
This study can serve as reference for controlling blocked drainage, canal and culvert problems.
5.2     RECOMMENDATION
The following are the recommendations
• Improvement of drainage facilities through maintenance
• Public awareness campaign.
• Frequent inspections to check faults that may occur
• Encouraging better pastoral cultivation to check erosion
• Constructing soil and water conservation structures including water pans
• Continuous monitoring of rainfall in the area through establishment of rainfall observation stations.  
• Carrying out environmental programme at least once in a month.
• Creating possible alternative routes for use in the case the road is threatened
• Redesigning the affected drainage, canal and culvert system
• Complete overhaul and reconstruction of the whole system
• Proper and frequent maintenance of the drainage facilities.
• Provision of dumping site.