Overview FloodRadar / DryPath Map is a prototype web application for visualizing flood extent from SAR data and generating safe evacuation routes at street / address level. Main features Interactive flood extent map (SAR-derived polygons). Overlay of shelters and low-water crossing points. Address-level interaction with pan/zoom. Comparison of multiple layers (flood zones, shelters, low water sites). Responsive UI for desktop. Tech stack Next.js, React, TypeScript React Leaflet / Leaflet GeoJSON layers for flood zones, shelters and low-water sites Data SAR-based flood polygons for a pilot area (e.g. Kerrville, TX flood event). OpenStreetMap / basemap tiles for context. Shelter and low-water crossing locations from open data and manual compilation. How to run locally npm install npm run dev open http://localhost:3000 This is the first public prototype of the FloodRadar / DryPath Map project (NASA Space Apps Challenge).