HYDSYS For Drainage - managing storm drainage systems with CivilSystems software

CivilSystems Software
HYDSYS for Drainage

HYDSYS will help you analyze, design and manage your storm drainage system. It is a comprehensive graphic information system (GIS) for your drainage infrastructure.

This software will simulate drainage from extreme rainstorms before and after land development and will help you to identify and correct deficiencies of developing urban areas. With selected hydrologic methods, you may determine design rainstorms, calibrate models, size pipes, simulate detention and produce hyetographs, hydrographs, plans and profiles. Model urban and rural drainage networks with zoning designations for paved, grassed and undeveloped contributing areas. As a maintenance management tool, your pipe and manhole inspections may be recorded and color-coded to help you to prioritize the work of your infrastructure upgrading projects.

Key Plans & Profiles

On key plans and profiles, powerful keyed manholes have features which allow you to view or label data, or to locate manholes and pipes on a spreadsheet, hydrograph or an AutoCAD drawing. They let you navigate in a simple way with little effort.


HYDSYS provides you with an easy way of selecting, entering, changing, and reviewing data. Spreadsheet style data management offers descriptive prompts and help screens as you move from cell to cell.


HYDSYS stands alone, but if you have AutoCAD the two will work together. Specify your own base plan for capturing manhole and pipe locations. Our toolbar makes it easy to locate or edit sewerage system components within HYDSYS and AutoCAD. HYDSYS produces detailed drawings of your model to your specifications using the same color-coding as the key plans and profiles.
HYDSYS Features
  • Windows 95
  • integrated spreadsheet style data editing and management
  • key plans and profiles with keyed manholes
  • AutoCAD R13 or R14 input and output
  • import or export ASCII files
  • either original analysis report or enhanced format report
  • manhole and pipe sorting and search facilities
  • pipe length calculations from coordinates
  • invert calculations from ground elevations
  • pipe grade calculations from lengths and inverts
  • comprehensive cross-reference checks
  • descriptions for models, design criteria, hydrographs, rainstorms and pipe locations
    Drainage Model
    This gravity network model calculates flows from urban, rural and undeveloped area runoff by using several types and combinations of analytic methods:
    • Illinois Urban Drainage Area Simulator, ILLUDAS
    • rural drainage simulation using U.S. Soil Conservation Service (SCS) curve number method
    • Rational method
  • pipes/channels, manholes/nodes entered in any order
  • manhole alphanumeric identifiers, coordinates, invert elevations, ground elevations, head losses
  • pipe connections, lengths, grades, diameters, shapes, sizes, Manning's n roughness coefficients
  • time lag or storage routing using an implicit method
  • fixed length option for curved or irregular alignments
  • link models using output and input hydrographs
  • zoned contributing areas with soil types
  • times of concentration either input or calculated using Kerby, Izzard or ILLUDAS formulae
  • reservoir rating curves, detention storage
  • flow limiting, rainfall variation, base flows
  • starting hydraulic grade elevation
  • antecedent moisture condition, depression storage
  • routing using the modified Puls method in the network or the simple method or the Muskingum method as tools
  • metric, Imperial or U.S. units of measurement
  • rainstorms recorded or generated from rainfall distribution or intensity-duration frequency curves
  • recorded or calculated hydrographs
  • zoning definitions with paved, supplemental paved, grassed and SCS method (soil types vs curve numbers) percentages of area
  • rainfall intensity and zoning definitions for runoff coefficients when using the Rational method
  • existing and required pipe capacities
  • required pipe diameters, detention storage
  • full pipe and peak flow velocities
  • part flow as remaining capacity, peak flow/capacity or depth/diameter
  • hydraulic grades for surcharging pipes
  • summary totals for areas and uses
  • list of under capacity pipes
  • totals of pipe lengths by diameter
  • rainfall total, highest intensity, highest amount for a specified time period
  • hydrograph total volume, peak flow, highest volume for a specified time period
    Pipe Inventory Management
    As a maintenance management tool, your manhole and pipe inspection data may be recorded and color-coded to help you to prioritize the work of your infrastructure upgrading projects. If you have another GIS, comprehensive export utilities help you keep your system updated.
  • installation and inspection dates
  • video reference
  • cleaning history
  • inspection comments
  • condition marks
  • material type
  • coordinate and invert elevation sources
    Key Plans & Profiles
  • labels display your choice of information when your cursor is placed over a keyed manhole
  • point-and-click locating of keyed manholes between spreadsheets, key plans, key profiles and AutoCAD
  • double-click a keyed manhole to edit it and its pipe
  • image zoom, copy to clipboard, save, print
  • insert labels or legend on image
  • size pipe lines to correspond to diameters
  • pipe color-coding (see below)
  • link to AutoCAD for pipe, manhole and area digitizing and input on base plans with dynamic data exchange
  • user specified manhole sizes, text sizes, layer colors, text font and text aspect ratio
  • plan showing flow directions and undersized pipes with labels for pipes, manholes, existing and proposed diameters, capacities, velocities, peak flows, part flows
  • profiles showing pipes, hydraulic grade lines and manholes with labels for manholes, lengths, existing and proposed diameters, grades and inverts
  • title, user descriptions and legend
  • pipe color-coding (see below)
    Color-Coded Plans
  • undersized pipes
  • diameters
  • capacities
  • part flows:
    • peak flow/capacity
    • remaining capacity
    • depth/diameter
  • materials
  • position sources
  • conditions
  • hyetographs
  • hydrographs
  • up to 9 hydrograph overlays
  • 3000 pipes and manholes per model
  • 2000 element hydrographs and hyetographs
  •    10 character manhole/pipe identifiers
  •    20 reservoirs per model
  •    30 zoning categories
For product information and demo disks contact us:

Expertware Development Corporation
27 Linden Avenue
Victoria, B.C., Canada V8V 4C9


(250) 384-5955
(250) 383-1692

Copyright © 1996-1999 by Expertware Development Corporation. Specifications are subject to change without notice. CivilSystems is a registered trademark of Expertware CivilSystems Corporation. Windows is a registered trademark of Microsoft Corporation. AutoCAD is a registered trademark of Autodesk, Inc. WATSYS, HYDSYS and SANSYS are trademarks of Expertware CivilSystems Corporation.