Bentley OpenFlows SewerGEMS

tiered subscription (Virtuoso) Design the Building

Advanced sanitary, stormwater, and combined sewer modeling software now licensed inside Bentley's OpenFlows Sewer family. The current OpenFlows Sewer product tiers include SewerGEMS capabilities for 1D/2D hydraulic simulation, scenario management, SCADA-connected analysis, and ArcGIS/MicroStation/AutoCAD interoperability used by utilities and water-infrastructure consultancies.

Made by Bentley Systems, public (BSY, $10.1B)

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2.4 /5 composite score

C1 3/5 reflects the published USD 1,021 per-seat Essentials tier with larger pipe-count tiers moving to quote-based pricing, and C2 2/5 reflects iTwin REST and .NET automation alongside desktop-first delivery. C4 2/5 reflects WHM-native models plus DGN, GIS, DWG, and CSV workflows, and C5 3/5 reflects OpenFlows Water, iTwin, ProjectWise, ArcGIS, MicroStation, and AutoCAD integration.

Situational

Rubric Scorecard

How we grade →

Criterion	Score	Evidence
Value for the price	3/5	tiered subscription (Virtuoso), from $1021 Source →
Agent Friendliness	2/5	API: iTwin Platform REST API (via OpenFlows integration); .NET API for desktop customization
Ease of adoption	2/5	desktop-install, steep learning curve
Portability & lock-in	2/5	5 file formats
Interoperability	3/5	6 integrations

Pricing

Modeltiered subscription (Virtuoso)

Entry price$1021

Free tierno

Free viewerno

Billing unitper-seat

TiersEssentials ($1021), Standard, Advanced, Ultimate

Visit Bentley OpenFlows SewerGEMS →

How we verified this: we checked Bentley OpenFlows SewerGEMS against its live site and an independent source — appsruntheworld.com. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-14.

Evidence

File formats

Format	Direction	Support
WHM	native	full
DGN	import	full
GIS	import	full
CSV	both	full
DWG	import	full

Integrations

Bentley OpenFlows Water Bentley iTwin Platform ProjectWise ArcGIS MicroStation AutoCAD

Adoption

Deploymentdesktop-install

Self-serve signupyes

Learning curvesteep

Sources

Pricing Changelog

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