An article in the Sleepy Eye Herald-Dispatch shows Grasspave2 installed as shoulder protection along a highway. Grasspave2 was used by the Minnesota Department of Transportation to […]Read more
Welcome to Invisible Structures, Inc.
For over 34 years we have provided the finest in grass porous paving, gravel porous paving, underground stormwater storage, erosion control, drainage, and access mats. As we go into our 35th year, we will continue to provide you with the highest quality, environmental site development and stormwater management products available.