ABSTRACT
Arch masonry bridges are used from many years ago around the world. In some countries these structures are a significant part of their transport system. Although these structures have a good resistance under load and need low maintenance during their lifetime, the traffic and load applied to them has increased many times during recent years. Therefore repair and strengthening of arch bridge is an important problem for owners. On the other hand some of these structure are a part of our historical structure and we need to have more attention, maintenance and strengthening them.
