748.5 Matching Existing Structures

From Engineering_Policy_Guide
Revision as of 08:59, 13 May 2010 by Smithk (talk | contribs) (Updated link to EPG 131.1, formerly EPG 131.4)
Jump to navigation Jump to search

When an existing structure that is to be replaced has provided adequate performance, a design exception to match the hydraulic performance of the existing structure is necessary and encouaged. Thorough documentation of the adequate historical performance is included with the Design Exception.