An erosion control transition mat for reducing scour and destructive
erosion at the transition between hard armor and soft armor erosion
control surfaces. The erosion control transition mat is provided with a
riser and a plurality of voids which collect to slow and divert effluent
from the hard armor to reduce scour and impact on the soft armor. The
erosion control transition mat is lightweight and of a low-cost
manufacture, and may be installed without the need for large equipment.