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Public Safety

Goal 2: Mitigate Flood Risks and Protect Stormwater Infrastructure
Objective 2: Complete Watershed Studies for Each Watershed within the City
Project Performance Measure(s) Department(s)
Core Watershed Studies Achieve FEMA acceptance of all Public Works & Transportation
PS watershed studies by the end of FY 2022
2.2.1
Summary:
Milestone Estimated Actual
Comprehensive watershed studies are important to evaluate Completion Completion
current and future flood risk and identify problem areas that Task 1 Dec. 2021
will guide the stormwater program. These watershed studies: Task 2 Jan. 2022
 Update the hydrology for current developed Task 3 Mar. 2022
conditions
 Update the hydraulic models based on the new flows
and current creek conditions
 Identify and prioritize problem areas and generate
conceptual solutions for these areas
 Assess the stream bank conditions for erosion
 Update the Flood Insurance Rate Maps based on the
new information

This data benefits the citizens of Arlington by informing them of
the flood risk for their homes, so they can take protective
action. It also identifies flood protection projects to be
incorporated into the Stormwater Capital Improvement Plan.
Arlington's nine major watersheds have been grouped into six
major study areas. The Stormwater Division plans to include
watershed studies in its budget each year until all the major
watersheds in the City have been studied.

This project will strategically plan mitigation tasks to
proactively rectify deficiencies identified in the watershed
studies completed in FY 2019. During FY 2021, work will be
concentrated on the following three tasks:
 Task 1: Provide community outreach on the City’s
improvement to the Community Rating System.
 Task 2 Provide community outreach for all FEMA
approved LOMR data to be included in FEMA’s PMRs.
 Task 3: Provide community outreach on the upcoming
Flood Rating 2.0.

FY 2022 Adopted Budget and Business Plan 140 City of Arlington, Texas