In development

From raindrop to river.

Watershed hydrology on the map: subbasins, reaches and rainfall-to-runoff, built from your terrain.

Who it's for

  • Hydrologists estimating design flows
  • Engineers preparing inflows for river and flood models
  • Planners assessing land-use change across a watershed

Draw it. Run it. See it.

  1. Draw it. Build the model on a real map, over aerial imagery, terrain and your GIS and CAD layers.
  2. Run it. Run the analysis from inside CIVILDRAW Basin.
  3. See it. Read the results on the map, in profiles and time series, and in reports.

What CIVILDRAW Basin does

Watersheds from terrain

Delineate subbasins and streams from elevation data.

Basin models

Connect subbasins, reaches, junctions and reservoirs into a basin model.

Rainfall to runoff

Turn rainfall into hydrographs at every point in the basin.

Feeds Flood

Pass hydrographs on to river models through the files a run writes.

CIVILDRAW Basin is in development; this is what it is being built to do.

Engine and files

Opens, edits and saves HEC-HMS project files, and runs HEC-HMS installed on your computer.

Projects are saved as a single .cdbasin file.

HEC-RAS and HEC-HMS are developed by the U.S. Army Corps of Engineers Hydrologic Engineering Center. EPA SWMM and EPANET are developed by the U.S. Environmental Protection Agency; OWA-EPANET is maintained by Open Water Analytics. CIVILDRAW is an independent product and is not affiliated with, sponsored by or endorsed by USACE, HEC, EPA or Open Water Analytics.

Questions

Not yet. It is in development. Leave your email on this page and we will tell you when it opens.

CIVILDRAW Basin opens, edits and saves HEC-HMS project files, and runs HEC-HMS installed on your computer.

Windows 10 and 11, 64-bit. CIVILDRAW is a desktop application; your models stay on your computer.

Hear when CIVILDRAW Basin opens

CIVILDRAW Basin is in development. Leave your email and we'll tell you when it's ready to try.