Our Work

2015 ACEC/MN Grand Award for Water Quality
- Designing a City for Zero Stormwater Discharge -

EOR developed a unique stormwater management plan and has implemented a series of Low Impact Development (LID) designs for the City of Inver Grove Heights to address a challenging, land locked area that formed an obstacle to the community's growth.

EOR's new and creative approach became the first-of-its-kind in the country to rely solely on enhanced LID-type technologies to accomplish, a zero-runoff stormwater system. This LID-led approach greatly reduced infrastructure cost, improved community amenities (such as green and open spaces), and helped to reduce pollution impacts on the area's lakes and adjacent Mississippi River.

The Argenta Hills Development included the following innovative practices:

curb cut

  • Multiple Ribbon Curbs & Curb Cuts

permeable pavers

permeable parking

  • Pervious Pavers & Pervious Asphalt
    including 247 Permeable Parking Stalls

rain garden-2

  • Biofiltration Swales & Infiltration Basins
    including 25 Rain Gardens

Click to View the Project Poster

<< click to learn about more EOR's other 'water' projects