Globally, gully erosion have been identified as one of the major hazards that inhibits the functions of both the land and the soil. Gully initiation and development increases runoff, enhances flooding and aids sedimentation. This research investigated and spatially analyzed the morphological and geotechnical parameters of gullies across land covers, investigated the changes that were observed in the LC between 2003and 2018; and assessed morphological and geotechnical variables across the land covers. Landsat 8 and topographical maps were processed to identify the extent of UIRB boundary. Considering LC and Lithology, 18 gully sites were randomly and systematically sampled. Six gullies were sampled for soil sample collection for laboratory analysis. Thirteen geotechnical variables were generated through standard soil test and four morphological variables were also generated through field measurement and digital image. Gully morphological and geotechnical variables were analyzed using spatial, descriptive and inferential statistics. Five important LCs were observed UIRB between 2003 and 2018. There is a substantial change experienced in all the identified land covers. The greatest gain was observed in build up area with 6.99% gain, and farm land with a loss of 12.77% experienced the highest cover loss. Five lithological units in the area has three of them affected by gully. The lithology identified to be greatly affected was the coastal plain sands with 71.83%, 78% and 79.29% of the gully length, width and area respectively in UIRB, found within the lithology. 8 out of the 13 geotechnical variables were found to be higher in coastal plain sands than other lithologies. Gully morphological and geotechnical characteristics showed significant variation across the lithologies and land covers, with built-up area and farmland being mostly under gully attack and coastal plain lithology being the lithology with greatest gully erosion vulnerability
