Delta Hydro Studio

Delta Hydro Studio is a web-native toolkit of design calculators for water engineers, spanning the everyday hydrology-to-hydraulics chain: rational-method and SCS curve number runoff (TR-55 included), time of concentration, design storms and IDF inputs, unit hydrographs and flood-frequency estimates, culvert checks, open-channel hydraulics, pipe and pump sizing, and detention/flood routing — with catchment tools like watershed delineation and rainfall/streamflow data handling rounding out the workflow. Each tool is a guided, unit-aware calculation that produces output you can drop into a design report.

Everything runs in the browser: nothing to install, nothing to licence per seat, and calculations are shareable with colleagues and reviewers as living documents rather than screenshots. Built by Delta Hydro, the team behind this directory — which is why it carries the verified badge; treat that as the disclosure it is.