Gully Erosion Impact on Infrastructures A Case Study of Assasi Ward, North Bank Makurdi, Benue State, Nigeria

This study examined the impact of gully erosion on infrastructures in Assasi ward. With the objectives to map the gullies in Assasi ward North bank Makurdi and assess the effects of gully erosion on infrastructures in Assasi ward. A reconnaissance survey was undertaken to get genuine and first hand information on the gullies in Assasi ward. These reconnaissance survey made possible the identification and mapping of the gullies. The dimensions or characteristics of the gullies were measured their depth, width and length. They were measured with the aid of tapes, ranging poles and a notebook for recording. The gully length of these gullies was measured with the aid of a tape and ranging poles. Measurement was taken from the gully head at a length of thirty meters each and there was a total of five hundred and forty meters (540m) with a division of eighteen segments for the major gully. The gully depth was also measured by fixing a pole at the deepest portion and the tape was stretched across each gully over the ranging pole, and then measurement was taken from the gully bottom to where the tape meets.