Disclaimer: The development, release, and timing of any features or functionality described or discussed for our products in this User Feedback Forum for Autodesk Water Products and Services remains at our sole discretion. This User Feedback Forum for Autodesk Water Products and Services is not a commitment, promise, or legal obligation to deliver any functionality, is intended solely to outline and gather feedback about our general product direction, and should not be relied on in making purchasing decisions.
Thank you for the suggestion, this idea has been added DMRB calculator to our roadmap for future consideration but we currently have an inlet design tool that uses HEC22 manual equations (see attached screenshot).