Based on experience and extrapolation, it is found that the best way to predict pile behavior is to perform a pile loading test. In this study a comparison between the static and dynamic load tests results was made to evaluate the ability of the High Strain Dynamic Pile Testing (HSDPT) using SIMBAT method to estimate the static capacity of bored concrete piles. Four case studies conducted in Red Sea state were taken. The two test results are consistent to a
good extent. The dynamic load pile test, which is a simple quality control test offering a considerable savings of time and cost and requires less space,
can be used for predicting pile capacity and pile integrity under proper care and it should be calibrated by at least one static test. The (settlement/pile diameter) ratios, which are less than 1% for all piles, reflected conservative pile design. The pile design for projects should be optimized by determining the actual ultimate pile capacity, which may need to conduct pile test to failure or near to failure.