# TRAP EFFICIENCY (E)

• It is define the percentage of the sediment deposit in the reservoir even inspire of taking precautions and measures.
• Most of the reservoirs tap 95% to 100% of the sediment load flowing into them.
• It has not been possible to reduce the trap efficiency below about 90% inspire of several sediment control measures now know to us.
• Trap efficiency is a measure of reservoir sedimentation.