HydroCAD Supports
Contech
Stormwater Solutions
HydroCAD
provides full support for the wide range of stormwater storage products offered
by Contech Stormwater Solutions Inc.,
including their full line of concrete, CMP, and plastic storage offerings.
This
partnership allows CONTECH products to be easily used within any HydroCAD model
for stormwater storage, detention, or infiltration. Press release.
The latest HydroCAD-9 release includes all current
chamber definitions, and provides an interactive chamber
wizard for easy layout, pricing, and modeling of
underground storage systems.
Users of HydroCAD 8.5 can download a chamber update for use with their current software. However, a
program update is recommended to take advantage of the
new chamber wizard.
How storage is modeled
Stormwater
storage typically appears in a HydroCAD model as part of the
storage definition for a "pond". In the simplest case, HydroCAD
calculates the total available storage, including the interior of the chambers,
plus the void space in any surrounding stone.
For a more complete analysis, a full stage-storage curve is calculated so that
an inflow or runoff hydrograph can be routed through the pond. The resulting analysis indicates the water
levels attained throughout the rainfall event, as well as any discharge
that may occur through outlet devices or infiltration into the surrounding
ground.
Flexible storage options
Each HydroCAD pond may include an unlimited number of storage definitions as required
to describe its overall storage characteristics. This makes it
easy to model complex storage arrangements, such as a combination of multiple
chambers, pipe storage, catch basins, or other contributing volumes.
But the most significant feature is the ability to embed (bury) chambers in a
bed of stone, and have HydroCAD automatically calculate the combined
storage at any water surface elevation. This makes it easy to determine
the storage for virtually any configuration of storage chambers, without
resorting to any manual calculations.
HydroCAD can also model almost any imaginable storage arrangement, including
layered chambers of different sizes combined with auxiliary storage from
adjacent pipes and catch basins, and even the above-ground areas (parking lot)
that may provide overflow storage for certain events.
Using CONTECH stormwater products
Setting up a pond to use CONTECH storage products is a simple process:
Just pick the desired model(s) from the drop-down list, and specify the number of
chambers plus their elevation. HydroCAD supports all CONTECH storage
products including concrete CON/SPAN® and CON/STORMTM
chambers, ChamberMaxxTM plastic
chambers, and corrugated metal pipe (CMP) storage using round or pipe-arch
configurations.
For chambers in a stone bed, just describe the shape and dimensions of the
outer excavation, plus the stone voids, and the composite storage is
calculated automatically.
Detailed product information
For detailed CONTECH specifications and design information, please visit
www.contechstormwater.com
For more information about HydroCAD
Please see the following pages for further HydroCAD information:
HydroCAD home page
Pond storage calculations
Storage chamber modeling
(includes step-by-step instructions)
Exfiltration calculations
General support page
HydroCAD features and capabilities
Free evaluation program
Pricing and ordering
CONTECH®, CON/SPAN®, and CON/STORM™ are trademarks of CONTECH
Construction Products Inc.
HydroCAD® is a registered trademark of HydroCAD
Software Solutions LLC
Chamber illustrations © Contech CPI
