The research work was carried out in Bukuru Metropolis Jos South Local Government Area of Plateau state, Nigeria. This study focuses on assessing the effect of poor drainage networks on flash flooding in Bukuru, Plateau State, Nigeria. Data were collected through questionnaires distributed to 200 respondents in the study area, with a response rate of 91%. So the finding reveal that 112 respondent which represent (56%) strongly agreed that the have knowledge on drainage system, 110 respondent represent (55%) strongly agreed that there is no intensity and frequency of floods, 69 respondent represent (34.5%) strongly agreed that there are means of assessing and evaluating network distribution in Bukuru, 102 represent (51%) strongly agreed that poor drainage system have impact on residents, 160 respondent represent (80%) says that they previous years that flood has occur in Bukuru was between July to October, 97 respondent represent (48.5%) strongly agreed that resident have shown their attitudes towards drainage systems, 64 respondent represent (32%) believes that the Volume of flood in Bukuru is Moderate, 30 respondent represent (30%) believes that the factors that contribute to the previous flood that has occur in Bukuru was because of Dumping of waste on channels, 50 respondent represent (25%) believes that what actually causes inadequate network in Bukuru Metropolis is non-conformity to land used planning, 78 respondent represent (39%) believes that the quality of drainage network in Bukuru Metropolis are very narrow, 85 respondent represent (42.5%) of the Residents strongly agreed that poor drainage systems adversely affect their lives and properties, 77 respondent represent (38.5%) strongly agreed that poor drainage network serve as a breeding place for mosquito, 100 respondent represent (50%) strongly agreed that the previous flooding that has occur in Bukuru has actually affect the activities of people, 112 respondent represent (56%) strongly agreed that poor drainage network actually have health implication and 90 respondent represent (45%) indicate that none of the above year mention that they have experience flooding in Bukuru metropolis of plateau State, Nigeria.