Erosion and Sediment Pollution Control Program Manual.pdf

GABIONS and Reno mattress have been used to stabilize stream banks for many years. Results have
been mixed. While successful in many locations, gabions have failed where undermined or where the
wire baskets have been damaged by abrasion or corrosion. Therefore, before specifying gabions for
streambank stabilization, consideration should be given to the available substrate, pH, and anticipated
sediment transport of the water. If these are not suitable, another form of stabilization should be
considered.
York County Conservation District
Where gabions or Reno mattresses are proposed, they are typically installed as shown in Figure 15.3
or 15.4. As with other types of stabilization, sufficient details should be provided on the detail sheets to
ensure their proper installation, and supporting calculations should be included in the narrative to show
they are properly sized. Gabion and Reno mattress installations should be designed according to
manufacturers’ specifications.
Special attention should be given to preventing scour at the upstream and downstream ends of the
baskets. Appropriate means to prevent undermining should also be taken.
363-2134-008 / March 31, 2012 / Page 307