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Storm Drainage Master Plan with Climate-Integrated Modeling

Solution Overview

The City of Oakland initiated development of an updated Storm Drainage Master Plan that incorporates a comprehensive asset management system and state-of-the-art modeling to evaluate system performance under different storm scenarios while integrating precipitation changes and sea level rise projections.[2] This initiative addresses the critical need to modernize Oakland's aging infrastructure, as the existing 2006 SDMP had fallen out of date and the storm drainage system required urgent maintenance, repairs, and upgrades.[2] The updated plan is designed as a living document that will be continuously updated to serve as a vital tool for guiding investment in the City's storm drainage system.[2]

Technical Components

The updated master plan incorporates state-of-the-art modeling capabilities that evaluate how the storm drainage system performs under different storm scenarios while incorporating precipitation changes and sea level rise due to climate change.[2] This technical approach includes a comprehensive asset management system designed to track and manage the city's storm drainage infrastructure.[2] The modeling framework will support identification of critical maintenance and improvement projects that reduce potentially costly and dangerous flooding.[2] The City plans to facilitate community engagement through a partnership with an online engagement platform, enabling residents of Oakland neighborhoods to provide information on factors affecting localized flooding and map hot spots for creek or coastal-caused flooding they are already experiencing in their neighborhoods.[2]

Implementation Details

The City of Oakland awarded a Professional Services Agreement to Wood Rodgers for engineering services for the Storm Drainage Master Plan Project No. 1005274 in an amount not to exceed three million three hundred ninety-one thousand dollars ($3,391,000).[3] This agreement was adopted by the Concurrent Meeting of the Oakland Redevelopment Successor Agency and the City Council on November 10, 2020.[3] The City appropriated $34,332.00 from Development Service Fund 2415 Fund Balance for the project.[4] The timeframe for the Storm Drainage Master Plan update was designated as near-term, spanning 1 to 2 years.[2] The Public Works Department leads the initiative, partnering with the Alameda County Flood Control and Water Conservation District.[2] The Public Works Department was working to identify additional funding sources for the master plan update.[2] The City plans to explore using an equity checklist to guide the project prioritization process, potentially overlaying socio-economic data with modeling from flooding hotspots and other known stormwater problem areas.[2]

Benefits and Impacts

The updated master plan will be used to identify critical maintenance and improvement projects that will reduce potentially costly and dangerous flooding throughout the city.[2] The equity-focused prioritization approach addresses the reality that flooding hotspots in Oakland typically coincide with low-income neighborhoods due to the city's topography.[2] The community engagement platform will enable residents to contribute local knowledge about flooding patterns, creating a more comprehensive understanding of drainage system performance across different neighborhoods.[2]

Climate Adaptation Relevance

This approach directly addresses climate change impacts by incorporating precipitation changes and sea level rise projections into the storm drainage system modeling and planning process.[2] The updated master plan evaluates how the infrastructure performs under different storm scenarios, enabling the city to prepare for increasingly severe weather events and coastal flooding risks.[2]

Business Analysis

The $3,391,000 professional services contract with Wood Rodgers represents the primary capital investment for developing the updated master plan.[3] The City appropriated additional funding of $34,332.00 from the Development Service Fund 2415 Fund Balance to support project implementation.[4] The Public Works Department's ongoing efforts to identify funding sources indicate the need for sustained financial support beyond initial planning phases.[2] The equity checklist approach to project prioritization suggests that funding allocation will consider socio-economic factors alongside technical flooding assessments, potentially positioning the initiative for state and federal environmental justice grants.[2] The Oakland Green Stormwater Infrastructure Plan, prepared by the Oakland Department of Transportation under Director Ryan Russo and published in September 2019, provides complementary planning context for stormwater management investments.[1]

Sources