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{{Language-box|english_link= Water Portal / Rainwater Harvesting / Groundwater recharge / Permeable rock dams | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon वाटर पोर्टल/ वर्षाजल संचयन/ भूजल पुनर्भरण/ पारगम्य चट्टान बांध | malayalam_link= Coming soon | tamil_link= Coming soon | korean_link= Coming soon | chinese_link=堆石透水坝 | indonesian_link= Coming soon | japanese_link= Coming soon }}
[[Image:perm rock dam icon.png|right|80px]]
[[Image:PermeableRockDam2.JPG|thumb|right|200px|Permeable rock dam, flowing. Photo: [http://il.water.usgs.gov/asian_carp/images/IM_Canal/3-Illinois%20and%20Michigan%20Canal%20Flow%20Barrier_recent.JPG USGS.]]]