Article analyzes the difference between outside and inside temperature on Suramadu bored pile foundation, the tension, and find out whether there is a crack on the foundation concrete or not. Based on the research result, it is concluded that maximum and minimum temperature happens on 80 hours hydration process after a foundry with maximum temperature 43,94°C and minimum 20°C; so the temperature difference on the bored pile foundation is 23,94°C. From the temperature difference, the maximum tension value is 0, 56 N/mm2 and allowed tension is 2,27 N/mm2. So, it is generaly stated that Suramadu bored pile foundation is saved from cracking because the value of maximum tension is lower than allowed concrete tension