Powerful Storm Water Management Made Easy

Say Hello To Visual OTTHYMO 6.0

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The Right Tool For Your Watershed Planning, Design, and Operational Management

Visual OTTHYMO is a hydrologic modelling software solution for single-event and continuous modelling. Low Impact Development (LIDs) technologies, Storm Water Management (SWM) facilities, wetlands, channels, sewers can be planned, designed, and analyzed efficiently. VO is intuitive and provides results in less time. 

We have designed tools in VO to help you achieve:

Peak Flow Control

Site Water Balance

Wetland Water Balance

Water Quality Control

Instream Erosion Control

What is VO? Here's a quick introduction.

vo benefits

VO 6.0 is the sixth version of the INTERHYMO-OTTHYMO hydrologic model simulation software package. OTTHYMO is a successful hydrologic management model that has been used for various simulation analyses such as:

Watershed Studies

Sub-Watershed Studies

Master Drainage Plans

Stormwater Management Plans

Site Plans

Stormwater Management Pond Designs

New Features

Low Impact Development Toolkit

Free in-built GIS

Erosion Analysis

Why VO?

Easy To Use

VO has been created to provide you with a reliable and dependable model that is straightforward and user-friendly.

Saves you time

VO gives users reliable results without a large number of input parameters, giving the model an edge over other “parameter intensive” models. This translates into reduced staff time on your projects.

Reliable & Dependable

VO can simulate runoff from statistical storm events. The hydrographs generated are based on unit hydrograph theory and can be used for calibrated or uncalibrated modeling studies.

Efficient Interface

VO has an improved interface that makes the model creation and interpretation of results easier and more efficient than ever.

Widely Accepted

VO is the standard model of choice with many regulatory agencies in Canada, from conservation authorities and municipalities to top consulting firms.

Expert Support

Integrated with an online help system and efficient tech support, the new VO Help System will provide invaluable assistance to all levels of user.

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