Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
Loading
Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
Civil Engineering · 400 Level · First Semester
CEE 406 Engineering Surveying and Photogrammetry II is a 400 Level course in the Civil Engineering department, taught in the First Semester. On La-Net Hub you can watch all 35 recorded lectures for free, grouped into 15 series, read the course lecture note online or download it as a PDF, and test yourself with practice questions.
Contours and Contouring in Surveying
Contours and Contouring in Surveying refer to the method of representing the shape, elevation, and relief of the ground surface on a map using contour lines. A contour line is an imaginary line that connects points of equal elevation above a common reference level, usually mean sea level. Contouring helps surveyors, engineers, architects, and planners visualize the terrain, determine slopes, identify hills, valleys, ridges, and depressions, and plan construction projects such as roads, dams, canals, and drainage systems. By accurately depicting the three-dimensional features of land on a two-dimensional map, contouring provides essential information for land development, environmental studies, and topographic analysis.
