![Green roof incentives boost stormwater management in Portland](https://cole-mswmag.imgix.net/https%3A%2F%2Fwww.mswmag.com%2Fuploads%2Fimages%2Fportland_green_roof-ramona_171030_110129.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=de073d2d4462a10c585fcdcb998af5bb)
Walmart has broken ground for a new store in the Hayden Meadows region of Portland, Ore., with plans for a 40,600-square-foot green roof that will be the largest in the entire state.
The 90,000-square-foot supercenter will include the chain’s second largest green roof, surpassed...