Impact of Erosion on Street Roads: A Case Study Of Sijuwade Area Akure Ondo State Nigeria

Abstract

This research evaluates the impact of erosion and runoff on street roads. Reconnaissance survey   was carried out to assist in the identification and accurate delimitation of the study area, out of which thirteen streets were selected. Factors responsible for erosion in the study area were observed to ranges from natural cause including topography, rainfall and soil nature. Human factor responsible for erosion in the area studied include land use pattern and waste disposal method, poor construction and maintenance activity. Effect of erosion on the studied area includes Rendering of road way non motorable through creation of gullies, Carving in (slope instability) on drains ditches that were not lined, Flooding of road ways during rain due to blockage of drains, Pollution of water bodies in the environment as a result of sediment deposition, Destruction of Pavement infrastructure i.e. pavement, culverts and drainages. It is therefore concludes that Erosion also have various effects on street roads not all factors assumed to be responsible for erosion form agricultural perspective is responsible for erosion on street roads. However, with good management practices, and paving of roads, the problems of erosion in built up area can be controlled.

Keywords: Reconnaissance Survey, Erosion, Runoff, Street Roads, and Road infrastructure