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Double ring infiltrometer data from a restored reach of Underwood Creek, Wisconsin, 2019

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: August 01, 2026 at 04:11 AM | Dataset Last Updated: March 05, 2025 at 12:00 AM
Floodplain infiltration rates were measured at five locations in July 2019 using a double ring infiltrometer. The double ring infiltrometer instrument consists of two concentric metal cylinders – a larger outer ring and smaller inner ring. The rings were driven into the soil and the area inside the cylinders was flooded with water. Infiltration rates were measured directly in the inner ring by timing the drop in water level at 0.64 cm (0.25 inch) increments. Water was periodically added to both rings during the test to maintain an approximately uniform water level above the soil. The iterative process of draining and re-filling was continued until a steady rate of infiltration was reached, typically after one to three hours. Infiltration rate measurements from the inner ring are considered to represent one-dimensional and vertical flow.

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