New and better solutions to management problems in the construction industry are essential if demands of contemporary society for habitat are to be met. Operations Research is defined and presented as uniquely successful in providing such solutions. The ongoing drainage problem in the city of Mumbai is defined and reasoned. A probable solution, reconstruction of civil utilities is discussed with the help of the use of OR. Eight basic forms of O.R. are defined, examples are given from Construction of their use. Covering the entire spectrum of engineering applications of operations research in a single article is nearly impossible.