− | [[File:Filter bed grass pass.png|500px|thumb|Exampel of a mature filter strip beside a major highway, Washington State, U.S. (Photo Source: Washington State Department of Transportation, 2018)<ref>Washington State Department of Transportation. 2018. Vegetated Filter Strips: Low-impact development fact sheet. Authored by: Maria Cahill, Derek Godwin, and Jenna Tilt. Published June 2018. Accessed: 14 July 2022. https://catalog.extension.oregonstate.edu/em9208/html</ref>]] | + | [[File:Filter bed grass pass.png|600px|thumb|Exampel of a mature filter strip beside a major highway, Washington State, U.S. (Photo Source: Washington State Department of Transportation, 2018)<ref>Washington State Department of Transportation. 2018. Vegetated Filter Strips: Low-impact development fact sheet. Authored by: Maria Cahill, Derek Godwin, and Jenna Tilt. Published June 2018. Accessed: 14 July 2022. https://catalog.extension.oregonstate.edu/em9208/html</ref>]] |