Causes: 1. Livestock traffic. 2. Surface runoff. Concerns: Encourages further erosion. Recommended action: 1. Re-grade slope and sow a cover crop. 2. Keep livestock away from the embankment. Downstream Toe problems Causes: A concentrated seepage path or "pipe" has developed through the foundation. Seepage from the reservoir through a sand or gravel in the foundation. Concerns: 1. May result if a piping failure of the foundation and ultimately the embankment. Recommended action: The outflow should be examined for water - an indication that piping may be occurring. The area and flow should be monitored and the reservoir drawn down if flows increase. An engineer should assess the situation and recommend a course of action. Consult an Engineer immediately if flow volume increases or dirty water is present.
Causes: 1. Livestock traffic. 2. Surface runoff. Concerns: Encourages further erosion. Recommended action: 1. Re-grade slope and sow a cover crop. 2. Keep livestock away from the embankment. Downstream Toe problems Causes: A concentrated seepage path or "pipe" has developed through the foundation. Seepage from the reservoir through a sand or gravel in the foundation. Concerns: 1. May result if a piping failure of the foundation and ultimately the embankment. Recommended action: The outflow should be examined for water - an indication that piping may be occurring. The area and flow should be monitored and the reservoir drawn down if flows increase. An engineer should assess the situation and recommend a course of action. Consult an Engineer immediately if flow volume increases or dirty water is present.
E22270v90EA0P10guidelines0May02012.docx