How often should an untrenched filter log be staked?

The correct answer reflects the recommended practice for the installation of untrenched filter logs, which are often used in erosion control to filter sediment from runoff. Staking filter logs at a distance of 4 feet helps ensure that they remain securely in place, maintaining their effectiveness over time. This closer staking interval allows for better alignment and stability, especially in areas where there may be more movement of soil or water.

By securing the filter logs more frequently, it also helps prevent gaps at the ends of the logs or between the logs themselves, which can occur if they are too far apart. Thus, this practice ensures optimal sediment capture and minimizes the risk of erosion during rain events. Properly securing the logs is critical to maintaining their functionality and the overall success of sediment control measures on construction sites or disturbed areas.