
Speeds-Up Your Engineering Projects
GeoHECHMS

GeoHECHMS
What is GeoHECHMS?
GeoHECHMS greatly speeds up the creation, analysis, and review of stormwater models. It automates subbasin delineation, curve number (CN) computation using land use and soils maps, and lag time (time of concentration) computation. GeoHECHMS is a data wrapper to the industry-standard US Army Corps of Engineers HEC-HMS software using an AutoCAD compatible graphical user interface. Quickly compare different scenarios and alternatives, such as pre-development with different post-development designs. Rapidly construct, design, analyze and compare detention and retention ponds. Both US and metric (SI) units are supported.
Work Faster with Automated Workflows









AutoCAD, MicroStation & ESRI ArcGIS compatible graphical interface to HEC-HMS
GeoHECHMS is an AutoCAD, MicroStation and ESRI ArcGIS compatible interactive 2D/3D graphical user interface data wrapper to the US Army Corps of Engineers HEC-HMS stormwater software.
Import a variety of different data quickly and easily into HEC-HMS
Import existing Army Corps HEC-HMS models and quickly georeference them to real-world maps using included georeferencing tools.
Work simultaneously on multiple HEC-HMS models
Work with multiple HEC-HMS projects simultaneously using the Multiple Document Interface (MDI), including copying and pasting of stormwater structures and other data between HEC-HMS projects.
Easy to Learn and Use
Interact graphically with all HEC-HMS model elements. Effortlessly create and edit subbasins, detention ponds, routing reaches and other model elements by clicking and dragging. Uncomplicated dialog boxes allow easy data entry and review.
Unlimited Undo and Redo
Correct mistakes easily with unlimited Undo and Redo capability. Experiment with different engineering and management decisions. Rollback changes one at a time or select a group of changes from a visual selection list.
Automated HEC-HMS Workflows
Greatly speed up stormwater projects with automated workflows to automatically delineate watersheds, compute curve numbers (CN), compute TOC & lag times, compute % impervious, assign design storms, size detention ponds, and generate engineering reports.
CAD & GIS Integration
Integrate HEC-HMS directly with AutoCAD (including AutoCAD Civil 3D), Bentley MicroStation and ESRI ArcGIS map data. Export completed HEC-HMS models and results to AutoCAD, MicroStation and ArcGIS.
Easy to Learn and Use
Interact graphically with all HEC-HMS model elements. Effortlessly create and edit subbasins, detention ponds, routing reaches and other model elements by clicking and dragging. Uncomplicated dialog boxes allow easy data entry and review.
Unlimited Undo and Redo
Correct mistakes easily with unlimited Undo and Redo capability. Experiment with different engineering and management decisions. Rollback changes one at a time or select a group of changes from a visual selection list.
Automated HEC-HMS Workflows
Greatly speed up stormwater projects with automated workflows to automatically delineate watersheds, compute curve numbers (CN), compute TOC & lag times, compute % impervious, assign design storms, size detention ponds, and generate engineering reports.
MDI Multiple Model Editing
Load, edit, and run multiple HEC-HMS models simultaneously. The Multiple Document Interface (MDI) allows easy copying and pasting between models, quick comparisons of input data and results between scenarios, and other modeling efficiencies. Models can be displayed in tiled windows or tabbed views, providing greater productivity.
Automated Watershed Delineation
Delineate subbasins and watersheds from 3D digital elevation terrain data. Utilize AutoCAD Civil 3D surfaces, MicroStation surfaces, contours, TINs, DTMs, DEMs, survey points, LiDAR, and other external digital elevation terrain data.
Detention Pond Designing
Quickly size and design detention and retention ponds for different design storms and engineering criteria. Develop outlet structures for different scenarios, considering both water quality and design storm requirements.
Complete HEC-HMS Support
Develop and compute HEC-HMS stormwater results directly within the software, no external data processing required. Read and write standard US Army Corps HEC-HMS data files, ready for regulatory agency submittal. In addition, HEC-1 models can be imported and updated to HEC-HMS.
What-If Scenario Manager Analysis
Compare different engineering models, such as existing and proposed development, different detention pond designs and more. This allows stakeholders to evaluate alternatives, allowing you to consider more innovative and environmentally sensitive designs.
Powerful Report Generation
Comprehensive, easy-to-read input data and output analysis reports can be automatically generated using provided drainage report templates. Reports can be customized to meet reviewing agency requirements.
More Accurate Models
Reduce time wasted with imprecise data. Easily integrate field collected
data in varying formats along with CAD and GIS data to update the
HEC-HMS model to accurately reflect field conditions.
Seamlessly Share Data with HEC-RAS
To improve productivity, the HEC‑HMS stormwater results computed within
GeoHECHMS will seamlessly migrate to HEC-RAS. This greatly increases the
speed at which users can perform HEC‑RAS flood studies, design bridge
and culvert roadway crossings, compute dam failures, and complete stream
restoration and alignment projects.
Purpose-Built Stormwater Design Tools
Integrated HEC-HMS stormwater design tools offer a more efficient way to
create and analyze a stormwater project, size and design detention
ponds, analyze dam failures and more. Update subbasin catchment
boundaries dynamically as terrain data is changed. Quickly define
detention ponds and outlet structures using specialized stormwater
tools.
2D & 3D Viewing and Editing
Shift seamlessly between 2D and 3D viewing perspectives to clearly
identify modeling issues and make changes. Freely rotate, pan, zoom, and
fly through the model to any perspective to review subbasins, detention
ponds, routing reaches and more.
Stunning Visualizations
Create stunning visualizations directly from the software of different
design alternatives to help better understand the impact of the design
on the community and the surrounding environment. Publish the HEC‑HMS
model directly to Google Earth for even greater visualization and
understanding of the project.
Complete Land Use Coverage
Complete land use coverage is provided for USA, Canada, Europe,
Australia and many other parts of the world. For the USA, land coverage
data is provided at a 100 x 100-foot grid cell size. This makes it
extremely easy to compute composite curve numbers, time of
concentrations, lag times and more.
Complete Imperviousness Coverage
Complete percent imperviousness coverage is provided for the USA at an
approximate 100 x 100-foot grid cell size. This allows a more accurate
stormwater model to be developed, allowing urbanization effects to be
directly incorporated into the stormwater model.
Integrated Cloud-Based Mapping
Utilize world-wide high-resolution 3D digital elevation terrain data
from map services for automated watershed delineation, computation of
time of concentration and lag time. Utilize web-based mapping services
for aerial orthophotos, FEMA flood maps, watershed delineation, river
centerline alignment, and more.
Digital Terrain Cross Section Cutting
Extract HEC-HMS routing reach cross sections from 3D digital elevation
terrain data. Utilize AutoCAD Civil 3D surfaces, MicroStation surfaces,
contours, TINs, DTMs, DEMs, survey points, LiDAR, and other external
digital elevation terrain data. Automatically convert the extracted
cross section to an equivalent 8-point cross section.
Automated Sequential Naming
For large models with numerous subbasins, routing reaches, junctions and
other stormwater elements, the software will automatically name the
elements based upon user-specified guidelines. The elements are named
sequentially, by routing distance or incrementally.
Automated TOC & Lag Time
Rapidly compute SCS time of concentration and lag time using flow
segments of sheet flow, shallow concentrated flow and channel flow. The
software will automatically compute overland flow lengths, slopes and
travel times based upon digital terrain surfaces and land use coverages.
Automated Design Storm Assignment
The software will automatically determine the design storm and
corresponding precipitation based upon the project location anywhere
within the USA. It will determine the design rainfall for the 1, 2, 5,
10, 25, 50, 100, and 500-year storms by querying the NOAA Precipitation
Frequency Data Server.
Automated CN Computations
Quickly compute composite SCS curve numbers (CN) and percent
imperviousness based upon aerial mapping, GIS polygon land use, or just
by painting regions of land use on the screen. The software will
automatically compute a weighted average of the different land uses and
assign it to each subbasin.
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1-800-301-02-955
608-729-5100
(US and Canada)
[email protected]
+1 608-729-5100
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CivilGEO India
Graphix Tower, A-13 A
3rd Floor, Sector 62
Noida, Uttar Pradesh 201309
IndiaTel:
1-800-301-02-955 or
+91 022-3831-8601