Upgrading San Mateo County’s Flood Warning System Scott Brown Geomorphologist/Hydrologist SanClick Mateo to edit County Master Flood title stylesResilience Projects ▪ Bayfront Canal/Atherton ▪ Navigable Slough Channel Flood Flood Management Management and Plan Restoration Project ▪ Belmont Creek Flood ▪ County-Wide Flood Management Plan Warning System Upgrade and Expansion DWRClick Grantto edit Components Master title styles ▪ Update Emergency Operation Plan and Develop Watershed-specific Emergency Action Plans ▪ Upgrade existing flood monitoring network ▪ Create a web-accessible data display portal ▪ Establish new stream/rain monitoring stations FloodClick toWarning edit Master Components title styles . Pre-storm . Planning . Preparation . Monitoring . Rainfall . Streamflow . Stage . Emergency Action . Maintenance . Closures/evacuations . Post-storm follow-up FebruaryClick to edit2017 Master title styles Source: https://pbs.twimg.com/media/C4FypCTVMAAi1qy.jpg SanClick Mateo to edit County Master Existing title styles Stations . San Bruno Mountain . Belmont Creek . Huddart Park . San Francisquito Creek . La Honda Ck Pk (repeater) . Los Trancos Park . Towne Ridge . Saratoga Summit SanClick Mateo to edit County Master Existing title styles Stations Upgrade stations to ALERT2 protocol • Increase network reliability • Minimize data loss DataClick Display to edit Master title styles . Contrail™ Software . Aggregate data from a variety of sources . Graphical displays and maps of data . Issue flood warnings and alerts via text/email DataClick Display to edit Master title styles DataClick display to edit Master title styles NewClick Staff to edit Gauges Master title styles . Belmont Creek . Cordilleras Creek . Pescadero Creek . Colma Creek . Broadmoor Creek . San Carlos Creek . Pilarcitos Creek . Butano Creek . Bayfront Canal WebcamClick to edit Master title styles ProposedClick to edit Monitoring Master title Stations styles . Colma Creek . San Bruno Creek . San Mateo Creek . Upper Belmont Creek . Redwood Creek . Atherton Channel MonitoringClick to edit location Master titleconsiderations styles . Purpose of the station . Position in the watershed . Site access/conditions . Communications . Maintenance/ calibration . Potential for vandalism MonitoringClick to edit location Master titleconsiderations styles . Site-specific concerns . Tidal effects . Capacity/timing constraints . Cross-watershed flooding . Critical points-of-concern . Urban versus upper watershed inflows San Mateo Creek at Highway 101 StandpipeClick to edit Master title styles TelemetryClick to edit Cabinet Master title styles SanClick Mateo to edit County Master Proposed title styles Stations . Colma Creek . San Bruno Creek . San Mateo Creek . Upper Belmont Creek . Redwood Creek . Atherton Channel ColmaClick to Creek edit Master at Orange title Memorial styles Park SanClick Bruno to edit Creek Master title styles SanClick Bruno to edit Creek Master title styles ElClick Zanjon to edit Creek Master below title Cupid’s styles Row ElClick Zanjon to edit Creek Master below title Cupid’s styles Row SanClick Mateo to edit Creek Master title styles SanClick Mateo to edit Creek Master title styles SanClick Mateo to edit Creek Master at Hwytitle styles101 Augmented photograph showing potential option for San Mateo Creek gage installation at Highway 101. BelmontClick to editCreek Master title styles Source: http://explore.museumca.org/creeks/1500‐RescBelmont.html UpperClick to Belmont edit Master Creek title styles UpperClick to Belmont edit Master Creek title styles UpperClick to Belmont edit Master Creek title styles Mount sensors in box culvert under Maywood Drive. Approximate 4‐ foot drop at d/s end of culvert Photo of Belmont Creek, downstream of Maywood Dr. RedwoodClick to edit Creek Master title styles RedwoodClick to edit Creek Master title styles RedwoodClick to edit Creek Master at Ebener title styles St. RedwoodClick to edit Creek Master at Ebener title styles St. RedwoodClick to edit Creek Master at Henry title stylesFord Elementary AthertonClick to edit Channel Master title styles AthertonClick to edit Channel Master title styles AthertonClick to edit Channel Master at titleHolbrook styles Park AthertonClick to edit Channel Master at titleHolbrook styles Park QuestionsClick to edit or comments?Master title styles Colma Creek at Orange Memorial Park .