One of the most important cases which were related to human being is road and its relation. Relationships and ways were widely developed after Islam and homogeneousness of many areas under Islam. Various factors were taken into consideration in the process including selecting the nearest road and road safety. Natural disasters were always obstacles in easy achieving and creating near roads. One of these obstacles was valleys and rivers which made obstacle in the way construction. Human being always overcame various obstacles and thought of a solution using the power of mind. In order to cross the rivers and creating near roads, he tried to make bridges on these roads in different eras ad passed this natural obstacle. Kurdistan always faced this problem in its ways according to its climate and permanent rivers. Therefore, the existence of bridges and their architectural type were effective in creating roads especially in Islamic era in Kurdistan relational roads
