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San Mateo presents storm drain master plan update; staff seeks direction on funding priorities and private development standards
Summary
City engineers and consultants presented a comprehensive storm drain master plan update that identifies roughly $233 million in capital needs plus $34 million for climate impacts (total about $267 million). Staff recommended options including continued allocation of limited stormwater fee dollars for nuisance ponding and potential bonding to accelerate large projects such as the Marina Lagoon pump station, estimated at about $121 million.
San Mateo Public Works staff and consultants presented a comprehensive update to the city's Storm Drain Master Plan at the Jan. 14 Sustainability and Infrastructure Commission meeting, describing system condition assessments, hydraulic modeling, a prioritized capital improvement program (CIP) and funding options.
James Yang, senior engineer at Public Works, said the plan reassesses a system designed decades ago and incorporates recent extreme storms (2022–23 atmospheric rivers), updated condition inspections and integrated hydraulic modeling. Consultant Justin Maynard (Schaff & Wheeler) described fieldwork including CCTV inspections of selected pipes, visits to nine of the city's 10 pump stations, and a system model covering roughly 150 miles…
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