Driveway Cross (or Drain with Metal Grate)

Driveway Cross

Infiltration trenches are linear ditches that collect rain water from adjacent impervious surfaces, and their highly permeable fill allow water to quickly infiltrate into the ground. The primary purpose of infiltration trenches is to treat stormwater quality. As rain falls on impervious surfaces, and flows downhill across the surface collecting pollutants present on the surface the infiltration trenches are dug in areas where they can intercept this surface flow and filter out the pollutants while also providing groundwater recharge. They are very practical to install with a metal grate, gravel or permeable cement across a driveway to collect water running down the impervious area.