{"name":"BridgeClear","short_name":"BridgeClear","description":"BridgeClear\n\nReal-time vertical bridge clearance for towboat pilots and mariners on America's inland and coastal waterways.\n\nBridgeClear pairs live NOAA gauge stages and tidal current data with your vessel's air draft to show exactly how much room you have under every USACE and NOAA-charted bridge — before you get there. Built by and for towboat pilots, it turns scattered government data sources into one clear, heads-up navigation picture.\n\nKey features\n\nLive clearance under every bridge — vertical clearance calculated from real-time USACE gauge stages, with movable-bridge (lift, bascule, swing) open-position low steel shown as the standard reference for vessel passage.\nHeads-up chart navigation — NOAA nautical charts with a rotating, heading-up view centered on your boat, plus USACE river-mile awareness so you always know where you are on the waterway.\nAIS vessel tracking — see nearby vessel positions, names, and headings on the chart (bring-your-own-key).\nPersonalized air-draft alerts — clearance warnings tuned to your vessel's actual air draft and your chosen safety margin.\nTides & currents — NOAA harmonic tidal predictions and current stations for coastal and estuary transit.\nVessel profiles — save air draft and details for the boats you run.\nOffline-friendly — last-loaded bridges and chart tiles stay available when the connection drops.\nBridgeClear: know your clearance before you get there.\n\n","icons":[{"src":"https://media.base44.com/images/public/6a80100171d5da8e3e3b1c4a/a6141f60d_4a5a5642a_generated_image.jpg","sizes":"192x192","type":"image/jpeg"},{"src":"https://media.base44.com/images/public/6a80100171d5da8e3e3b1c4a/a6141f60d_4a5a5642a_generated_image.jpg","sizes":"512x512","type":"image/jpeg"}],"start_url":"https://clear-span-flow.com","display":"standalone","theme_color":"#000000","background_color":"#ffffff","scope":"https://clear-span-flow.com"}