](https://www.linkedin.com/in/robertdickinson/)
Autodesk Water Technologist for Storm Sewer and Flood | Expert in ICM InfoWorks ICM SWMM/Ruby | 18 Years at Innovyze/Autodesk | 52 Years with EPASWMM TAC for CIMM.ORG SWMM5+
April 16, … Read the rest
The SWMM3 Weir Test File: A Historical Reference for Modern Hydraulic Modeling
This test file holds special historical significance in the development of stormwater modeling. Originally published in the 1981 EXTRAN 3 manual by CDM (now CDM Smith), it was specifically designed to validate orifice calculations in hydraulic networks. The … Read the rest
The SWMM3 or Extran3 Side Outlet Orifice Test File: A Historical Reference for Modern Hydraulic Modeling
This is a story about one inp file. It shows the continuity in stormwater modeling from 1980 to 2025 onwards. It is about Example 5 from the 1981 Extran Manual. This compact test case, … Read the rest
The SWMM3 or Extran3 Type 1 Pump Test File: A Historical Reference for Modern Hydraulic Modeling
This is a story about one inp file. It shows the continuity in stormwater modeling from 1980 to 2025 onwards. It is about Example 6 from the 1981 Extran Manual. This compact test case, … Read the rest
The SWMM3 or Extran3 Type 2 Pump Test File: A Historical Reference for Modern Hydraulic Modeling
This is a story about one inp file. It shows the continuity in stormwater modeling from 1980 to 2025 onwards. It is about Example 7 from the 1981 Extran Manual. This compact test case, … Read the rest
Autodesk Water Technologist for Storm Sewer and Flood | Expert in ICM InfoWorks ICM SWMM/Ruby | 18 Years at Innovyze/Autodesk | 52 Years with EPASWMM TAC for CIMM.ORG … Read the rest
This is a story about two inp files. It shows the continuity in stormwater modeling from 1980 to 2025 onwards. It is about Extran1 (free outfall) and Extran 2 (fixed backwater with a tide gate) from the 1981 Extran Manual. This compact test case, born in the era of punch … Read the rest
Model initialization is a crucial, automated step in model preparation. While it typically operates behind the scenes without user intervention, it can sometimes fail or cause undesirable starting conditions in complex models. Understanding the process and the common workaround techniques can help resolve these issues.
Introduction
This is about a GitHub repository that that preserves the SWMM 4 Fortran engine and associated files from Wayne C. Huber's version at Oregon State University, known as SWMM 44h. SWMM (Storm Water Management Model) is and was a software tool used for simulating stormwater runoff quantity and quality … Read the rest
Loaded 24 Documents posts
Your document has finished loading
[
Consolidating Multiple SWMM Networks into a Single Network
10 pages
Your document has finished loading
[
Using Punch Cards to Run SWMM 2 and SWMM3
36 pages
Your document has finished loading
PostsCommentsVideosImagesMore
Loaded 128 Articles posts
[
The Many Avenues of Ruby Help in the ICM Online Help File—Hint for AI Usage
1/ Ruby Introduction In the ICM Online Help File You can print any of these pages and use them with most of the AIs. Or copy and paste the
The original SWMM Manual from 1971—it came in four volumes, including the source code. They all date from 1971 and describe the earliest published volumes of the Storm Water Management Model (SWMM), developed through a partnership of Metcalf & Eddy, Inc., … Read the rest
SWMM History
SWMM 4
SWMM 3
SWMM3
SWMM2
SWMM1
swmm-1-volume-iv-program-listing.pdf
InfoSewer
… Read the restArticles
](https://www.linkedin.com/in/robertdickinson/)
Autodesk Water Technologist for Storm Sewer and Flood | Expert in ICM InfoWorks ICM SWMM/Ruby | 18 Years at Innovyze/Autodesk | 51 Years with EPASWMM
February 9, 2025
… Read the rest1/ Ruby
 |
|
STORM WATER MANAGEMENT MODEL
QUALITY ASSURANCE REPORT:
Dynamic Wave Flow Routing
By
Lewis A. Rossman
Water Supply and Water Resources Division
National Risk Management Research Laboratory
Cincinnati, OH 45268
NATIONAL RISK MANAGEMENT RESEARCH LABORATORY
OFFICE OF RESEARCH AND DEVELOPMENT
U.S. ENVIRONMENTAL PROTECTION AGENCY
CINCINNATI, OH 45268
DISCLAIMER… Read the rest
As SWMM5 is a link node network, the area of a Storage Node is both the area of the Wet Well and typically ½ the surface area of the connecting links. There is no surface area for the Pump(s) downstream of the Wet Well (Storage) but the area of … Read the rest
The SWMM3 Orifice Test File: A Historical Reference for Modern Hydraulic Modeling
This test file holds special historical significance in the development of stormwater modeling. Originally published in the 1981 EXTRAN 3 manual by CDM (now CDM Smith), it was specifically designed to validate orifice calculations in hydraulic networks. The … Read the rest
