Florida Hydrology — Passability

Lakes shown at true relative position · Winter Haven, Polk Co.
Tap a canal or lake-link for detail

Legend — segment status

Passabledepth ≥ draft + margin

Marginalfloats but tight

Drawn downeffectively no water

Interpolatedungauged · low conf.

Segment detail

Select a canal or lake-link on the map to see its current clearance, governing gauge, and the recent record.

How this reads live data

Live stage comes from USGS real-time gauges inside the Winter Haven bounding box (served through a Netlify function). Each segment's clearance is its seeded channel depth (from DEM/LiDAR — the datum no API hands you) minus how far the real lake has drawn down below its recent full pool. Datum-agnostic on purpose. The slider scrubs the observed record — every point a measurement, none simulated.

The honest part

This informs, it does not guarantee navigability. Channel-bottom depths are seeded estimates pending survey. A conditions estimate — never a promise there is water under your hull.