Green concrete in Mound and Excelsior?
Editors Note: Most know how I feel about this unhealthy “green” obsession, but this is not LML so there will be no commentary, just reporting.
Mahtomedi’s public works building is not only new, but parts of it are cutting-edge green as well.
On the north side of the recently opened structure, a concrete parking lot has been installed. But when it rains, there shouldn’t be any runoff from that paved surface into a nearby wetland that feeds several Washington County lakes.
Instead, the concrete poured earlier this month allows water to flow directly through it rather than across it, eliminating any need for catch basins or holding ponds. The so-called pervious concrete consists mostly of coarse aggregate and cement, but no sand, giving it a porous, rough texture similar to a Rice Krispie bar.
“The more we thought about it, the more we thought we needed to stretch to get things in that building project that lean us in a green way,” Mahtomedi Mayor Judson Marshall said.
Mahtomedi isn’t the only community using the innovative approach to address stormwater-runoff issues.
The Minnehaha Creek Watershed District has installed similar pervious concrete parking and walking surfaces in Excelsior and Mound.
Full Story: Pioneer Press

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