TOPOGRAPHIC SURVEY OF ABAYI GIRLS SECONDARY SCHOOL, OSISIOMA NGWA LGA, ABA, ABIA STATE
Abstract
ABSTRACT
This project was carried out to determine the undulating nature of Abayi Girl's secondary school Aba, Abia state, Osisoma Ngwa Local Government Area, Located at latitude 05' 08'29.62'E and longitude 07 20° 46.26°N which is about 4.5km from Abia state polytechnic, Aba campus 1. Topographic survey is a survey that defines the location of the natural and artificial features of the earth surface including selected ground points which are necessary for plotting contour lines of the topographic map, Its aim was to carry out a topographic survey with the objective of producing perimeter, contour, spot heights and topographic maps or plans. Spot heights were taken at a regular interval of 27m, and back computation done. The area of 6.1 Hectares were covered and the area was obtained using double latitude method. Total station system. (DTM624R) was used to acquire data which gave the location of points. The highest point was 78.82m while the lowest point was 76.01m. all plans were plotted digitally using AUTOCAD and surfer computer software package which aided in easy updating and quick revision for proper management.
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