Increased Limits of Delegated Authority to District/City Engineers re Infrastructure Contracts and Related Matters. Category: Department OrderSeries: 1990No: 117File: DO_117_S1990.pdfDate: Monday, June 11, 1990Tags: Limits Authority District City Engineers Infrastructure Contracts areas 117 Read more about Increased Limits of Delegated Authority to District/City Engineers re Infrastructure Contracts and Related Matters.