Item 2 - AARC Rutherford Stormwater Improvements Presentation — original pdf
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Asian American Resource Center / Rutherford Campus Stormwater Improvements Project Update Asian American Quality of Life Advisory Commission September, 17 2024 • Lee Sherman, PE, Watershed Protection Department Presenters: Agenda: • Background • Project Update • Public Engagement Opportunities • Brief Q&A (please hold questions until the end) AARC Workgroup Meeting April 14, 2021 AARC Vision Plan + Stormwater Improvements • Partnership City of Austin (COA) project • Builds portions of the AARC Vision Plan • Add pedestrian bridge and other recreational amenities to conserve limited bond funds • Increases traffic and community use of historically under‐utilized park area • Opportunity for water quality and drainage improvement AARC Vision Plan • AARC Phase 2 Improvements • PARD • Schematic design kicking off in the next month • Close coordination • WPD • PARD • AARC Management • BSD • Urban Trails AARC / Rutherford Stormwater Improvements • Project Elements • Wetland with boardwalk • Channel improvements • Raingardens • Pedestrian bridges • Urban trail Benefits Water Quality • Cleaner water will flow to Little Walnut Creek • Improved habitat for wildlife, pollinators, etc. Flood • Flood control for AARC / Rutherford campuses AARC Vision Plan • Provides required flood and water quality • Improved aesthetics of concrete channel • Provides Vision Plan elements • Pond • Nature play areas / landscaping • Trails and habitat • Pedestrian bridge Challenges Coordination Across Departments • Parking at Rutherford • Urban Trail Addition • Took More Time • “Dig Once” Operation and Maintenance • Maintenance crew involvement • Designing for maintenance Approximate Schedule • Preliminary engineering completed in 2021 • Public Meeting August 25, 2021 • Currently at 90% Design • Next Step: Permitting and Bid through 2025 • Construction estimated in 2026 Public Engagement Opportunities • Second Public Meeting Scheduled for October 22, 2024 at the AARC • Changes since August 25, 2021 • Urban trail scope added • Second pedestrian bridge • Wider and greener channel improvements • Coordination with BSD on parking impacts • Modifications to main pedestrian bridge • Also: Rain to River! • Austinites valuing water quality • Stream health Updated Pedestrian Bridge Alignment (Preliminary) Rain Garden Design Rendering Questions Why? Mission: Protect lives, property and the environment of our community by reducing the impact of flooding, erosion and water pollution. CONCEPTUAL WATERSHED Reduce the damaging effects of urbanization on Austin’s watersheds WHAT IS URBANIZATION? • Paving of land surfaces via construction of roadways, parking lots, buildings… • When rain falls, less water can soak into the ground • More water runs off to fill storm drains, creeks and rivers with more flow, faster Introduction 40% Evaporates 25% Evaporates AUSTIN IS URBAN… 10% Runoff RURAL 50% Infiltrates Groundwater URBAN 32% Infiltrates Groundwater 43% Runoff