• ONUZULIKE COLLINS OBIORA
• PROF. ANDREW OBAFEMI
• DR. MARK OGORO

Over the years, Niger state has been affected by erosion (gully erosion). The issue of gully erosion is of a major concern both globally and locally due to the soil texture. The focus of this study is to carry out a risk assessment of flooding in some selected areas of Niger state. The objectives are; to determine the major causes of flood in the state, and too identify the parts of the state that are most vulnerable to flood in the state. The method of data collection employed is through field work which involves the use of GPS to capture the coordinates the gully sites and tape rule to measure the width, depth, and length of the gullies. The Run-off properties of soil using curve number techniques (called Shuttle Radar Topography Mission (SRTM) is an international research effort that obtains digital elevation models on a near-global scale from 56° S to 60° N, to generate the most complete high-resolution digital topographic database of digital elevation models around the globe) was used in data analysis. The result shows that the soils in the state have more of sand, than clay and gravel. This means that infiltration and percolation is low. There is very little quantity of rainfall that percolates into the soil and a large amount flows as runoff. Considering the intensity and duration of rainfall in the state and relating it to infiltration rate, it is obvious that places with high rainfall intensity will have higher runoff. However, there are other factors that aggravate flood problems in Niger State, these factors show that making a definite assumption that places with higher rainfall intensity have higher runoff and thus experience flood more than places with low rainfall intensity may not be correct for all times and conditions.

Flood risk, Causes of Flood.

"FLOOD RISK ASSESSMENT IN NIGER STATE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 11, page no.d234-d246, November-2021, Available :http://www.jetir.org/papers/JETIR2111337.pdf

"FLOOD RISK ASSESSMENT IN NIGER STATE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 11, page no. ppd234-d246, November-2021, Available at : http://www.jetir.org/papers/JETIR2111337.pdf