These best management practices redirect runoff from impervious surfaces to a pretreatment/treatment best management practice.
Impervious diversion |
![Slotted vane drain image](https://images.dnr.state.mn.us/destinations/water_access/bmps/slotted_vane_drain_boomsite.jpg) | Subsurface Flow DiverterDescription of practice » Trench drain (metal grate: trench former, slotted vane drain) illustrations |
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![Concave shallow valley gutter image](https://images.dnr.state.mn.us/destinations/water_access/bmps/concave_shallow_valley_gutter.jpg) | Surficial Flow DiverterDescription of practice » Valley gutter with shallow concave shape (concrete) illustrations |
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![Water diversion bump image](https://images.dnr.state.mn.us/destinations/water_access/bmps/water_diversion_bump.jpg) | Water diversion bump with shallow convex shape (asphalt) illustrations |
Photo: Anoka County Conservation District | |
![Curb cut inlet image](https://images.dnr.state.mn.us/destinations/water_access/bmps/curb_cut _inlet_dakota_co.jpg) | Curb cut inlet illustrations |
Photo: Dakota County Soil and Water Conservation District | |
Vegetated swale |
![Vegetated swale example.](https://images.dnr.state.mn.us/destinations/water_access/bmps/vegetated_swale_whatcom_county.jpg) | Description of practice » This best management practice is used primarily for flow rate control but can also be designed to remove pollutants; it is a gradually sloped, shallow, flat-bottom ditch with check dams. illustrations |
Photo: Whatcom County, State of Washington | |