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2019-2020 Review Cycle Standard Specifications Redlines
2020 IDM redlines
Last Update: July 30, 2023
Cover letter explaining the supplemental changes made to Chapter 9 of the Infrastructure Design Manual.
Last updated: January 26, 2021
Chapter 9.2.01 supplement for design rainfall events, pipe sizes and placement, and inlet
Historical groundwater plant design guidelines
Last updated: Jan. 2011
The 2019 version of the Infrastructure Design Manual (IDM)
The 2022 edition of Division 01 - General Requirements Specifications
Last updated: July 28, 2022