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Lift Station Guideline Title Index
Design guideline drawings for submersible lift stations Civil, Mechanical, and Structural drawing set
2022 IDM Redlines
2022 Division 01 General Requirements Specifications
The 2022 edition of Division 01 - General Requirements Specifications
Last updated: July 28, 2022
Historical Groundwater Plant Design Guidelines
Historical groundwater plant design guidelines
Last updated: Jan. 2011
08R12 Residential Block Foundations (Revision 1)
Harris County Records Memo
Memo for restrict flood bond projects to municipalities.
Elevation Certificate FAQs
IDM Chapter 9 storm detention cover letter
Cover letter explaining the supplemental changes made to Chapter 9 of the Infrastructure Design Manual.
Last updated: January 26, 2021
2022 IDM Cover Letter and Executive Summary
Executive summary and cover letter for the 2022 edition of the Infrastructure Design Manual
Last updated: July 1, 2022