Using a waiting period and restrike after initial pile diving may be advantageous in certain soil conditions to optimize pile foundation design. Setup for a specified waiting period allows pore water pressures to dissipate and soil strength to increase. Restriking then confirms if higher nominal resistance is achieved. The length of the waiting period depends on the strength and drainage characteristics of the subsurface soils, and the required nominal resistance. Refer to Standard Specification 404 for additional pile driving construction criteria.