LGROW Design Spreadsheet
The LGROW Design Spreadsheet is a tool to show that a proposed site meets the requirements provided in the community/county stormwater standards manual. It is not intended to be used for detailed design of stormwater BMPs. The spreadsheet can be used to model a single discharge point from the site including structural BMPs in series or parallel.
Use the Design Spreadsheet Tutorial (pdf) below with the Tutorial Case Study (Excel spreadsheet) to learn how this tool works. Additional resources can be found below. The recorded presentation was given at the December 10, 2019 ASCE-West Michigan Branch meeting, and the slides are also located below.
The current LGROW Design Spreadsheet is Version 3.5
You can find a spreadsheet specific to a community on their individual page.
Click on the photo above to be directed to the slides for the presentation in the recording.
Click on the photo above in order to be directed to the model ordinance.