Intercepting Sewers and Storm Stand-By Tanks at Columbus, Ohio

The sewerage system of a city is designed, in general, to meet certain assumed conditions with the thought that when these conditions have been reached, a new plan will be developed to provide additional facilities. In 1908, the City of Columbus, Ohio, completed comprehensive sewerage improvements designed to give adequate facilities for some years to come. The time arrived when the capacity of these works was reached or exceeded, and it became necessary to provide additional facilities not only to give adequate sewerage to the city but also to meet higher sanitary standards. A program was adopted, therefore, designed to give adequate facilities for estimated 1960 conditions. This paper describes that part of the program which has been completed and is now (1933) in operation.