0 votes 0 votes A culvert is designed for a flood frequency of $100$ years and a useful life of $20$ years. The risk involved in the design of the culvert (in percentage, up to two decimal places) is _______ Hydrology gate2018-ce-2 numerical-answers flood-estimation-and-routing hydrology water-resources-engineering + – gatecse asked Feb 17, 2018 • recategorized Nov 18, 2020 by soujanyareddy13 gatecse 4.0k points answer See all 0 reply