From
Chris Hartmann
Title
TA151001 - Text Amendment - Drainage and Floodplain Management. Approval of a Text Amendment to Article 12, "Platting," Article 14, "Drainage," Article 15, "Floodplain Management," and Article 22, "Fee Schedule," of the Unified Development Code (UDC) for the purpose of revising text to improve consistency among the UDC and the Drainage Design Manual. The owner/applicant is Stephanie Griffin, City of Grand Prairie Engineering Department. (On October 5, 2015, the Planning and Zoning Commission recommended approval of this request by a vote of 9-0).
Presenter
Chief City Planner Jim Hinderaker
Recommended Action
Approve
Analysis
A Text Amendment to Drainage Design manual for the purpose of revising text to improve consistency among UDC Articles 12, 14, and 15 and the Drainage Design Manual. The following adjustments to the June 2015 Drainage Design Manual are as follows:
SECTION ACTION
Acknowledgments Updated Acknowledgments page.
Revisions Added Revisions to June 2015 Edition.
TABLE OF CONTENTS Updated to reflect changes in document.
LIST OF FIGURES Updated figure numbers and page numbers. Removed Figures 6.4A through 6.4F and referred user to HEC-22 Manual for grate design details.
LIST OF TABLES Updated table numbers and page numbers.
ALL SECTIONS Added “(0.2% annual chance)” to 500-year flood descriptions. Added “(1% annual chance)” to 100-year flood descriptions. Added “(4% annual chance)” to the 25-year flood description. Added “10% annual chance)” to 10-year flood descriptions. Added “(50% annual chance)” to 2-year flood descriptions.
1.1 Updated and clarified the purpose of the Drainage Design Manual.
1.2 Added reference to UDC Articles 14 and 15.
2.1 Updated and clarified the purpose and scope of the drainage policy. Added reference to UDC Articles 14 and 15.
2.2 Updated FEMA terminology. Updated Minimum Finished Floor Elevation to read Lowest Floor Elevation to reflect update in FEMA term...
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