Drainage - Minnesota Department of Transportation - MnDOT

Blend the upper 12 inches of the infiltration basin with compost, in-situ soils or sand to establish plant growth. Construct the upper 12 inches with a maximum of 20 percent Grade 2 Compost by volume. Construct the remaining volume of material in the upper 12 inches of either in-situ soils or sand to a mix that meets the required infiltration rate. ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download