In this study, a total of 935 data was used to analyze the correlation factors and positions of the common bridge damage through logistic regression. There are three aspects of the factor of bridge damage which include essential bridge character, external bridge condition, and internal bridge structure. Based on the whole bridge condition index, in terms of different damage positions, we performed the cross analysis which considered the different materials and bridge types. We constructed the logistic regression models and found all the factors which influence bridge damages in Taichung County, Taiwan.