Bentley OpenFlows StormCAD

Subscription Design the Building

Storm sewer analysis and design software now licensed as part of Bentley's OpenFlows Storm family. StormCAD remains the named storm-network design capability inside the current OpenFlows Storm packaging, focused on rainfall-to-outlet sewer design, hydraulic sizing, and CAD/GIS-connected stormwater workflows.

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

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2.6 /5 composite score

C1 3/5 reflects published $1,355 per-seat pricing, C2 2/5 reflects a Windows desktop workflow with no publicly documented standalone API, and C5 3/5 reflects MicroStation, OpenRoads Designer, OpenSite Designer, OpenRail Designer, and AutoCAD integrations. C4 3/5 reflects SWMM exchange plus DGN, DXF, and GIS import.

Situational

Rubric Scorecard

How we grade →

Criterion	Score	Evidence
Value for the price	3/5	Subscription, from $1355 Source →
Agent Friendliness	2/5	API: none publicly documented for standalone agent driving; workflow centers on desktop model authoring and data import/export
Ease of adoption	2/5	desktop-install, moderate learning curve
Portability & lock-in	3/5	4 file formats
Interoperability	3/5	5 integrations

Pricing

ModelSubscription

Entry price$1355

Free tierno

Free viewerno

Billing unitper-seat

Visit Bentley OpenFlows StormCAD →

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

Evidence

File formats

Format	Direction	Support
SWMM	both	full -- Vendor page explicitly documents EPA SWMM import/export.
DGN	import	partial
DXF	import	partial
GIS	import	full

Integrations

MicroStation OpenRoads Designer OpenSite Designer OpenRail Designer AutoCAD

Adoption

Deploymentdesktop-install

Self-serve signupyes

Implementation requiredoptional

Learning curvemoderate

Sources

Pricing Changelog

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