Rain Garden & GI Sign Templates RI Green Infrastructure Coalition Signs RIDOT is partnering with the RI Green Infrastructure Coalition on standard educational signs marking rain gardens, swales, vegetated buffers, and other green stormwater infrastructure. Above is a picture of the standard sign posted at the Common Fence Point Community Center in Portsmouth. To learn more and/or to receive a template file, please email info@greeninfrastructureri.org. URI Rain Garden Sign Template Standard size is 12″ wide x 18″ high, vinyl on aluminum. Contact us for complete specifications. Indesign files also available. Lorraine Joubert, URI Cooperative Extension, NEMO program (401) 874-2138 ljoubert@uri.ed