Design infiltration rate as a function of soil texture for bioretention in Minnesota
Link to this table
| Soil texture | Corresponding Unified Soil Classification | Design Infiltration Rate (in/hr) |
|---|---|---|
| Gravel, sandy gravel, and silty gravels | GW – Well-graded gravel or well-graded gravel with sand
GP – Poorly graded gravel or poorly graded gravel with sand |
1.63 |
| Sand, loamy sand, and sandy loam | GM – Silty gravel or silty gravel with sand
SW – Well-graded sand or well-graded sand with gravel SP – Poorly graded sand or poorly graded sand with gravel |
0.8 |
| Silt loam | SM – Silty sand or silty sand with gravel | 0.3 |
| Loam | ML – Silt
OL – Organic silt or organic silt with sand or gravel or gravelly organic silt |
0.3 |
| Sandy clay loam | GC – Clayey gravel or clayey gravel with sand
SC – Clayey sand or clayey sand with gravel |
0.2 |
| Clay, clay loam, silty clay loam, sandy clay, and silty clay | CL – Lean clay or lean clay with sand or gravel or gravelly lean clay
CH – Fat clay or fat clay with sand or gravel or gravelly fat clay OH – Organic clay or organic clay with sand or gravel or gravelly organic clay MH – Elastic silt or elastic silt with sand or gravel |
0.06 |