Control Structure Stoplog Settings

Control Structure Stoplog Settings

Find the stoplog settings for inline water level control structures used for edge-of-field conservation drainage practices, such as bioreactors, saturated buffers, and controlled drainage. The tool is designed for control structures that use a combination of 7-inch and 5-inch stoplogs to control the outlet level. For more information on managing control structures, see Bioreactor and Saturated Buffer Management on the Conservation Drainage Network website.


Use the slider to select the stoplog setting (height in inches from the bottom of the control structure) from your management plan.

Stoplog Settings

as shown in the diagram, where each block represents a stoplog. Note that the bottom stoplog is 7 inches tall and has a thicker o-ring on the bottom.


This work is supported by the Conservation Innovation Grants program at USDA’s Natural Resources Conservation Service (Proj. # NR213A750013G038) and is partially funded by the soybean checkoff through the Iowa Soybean Association.

© 2022 Iowa Soybean Association. Licensed under the Educational Community License, Version 2.0.