Finding the other bridges did not present an issue whatsoever for Walker. He actually found that he could sense them much more clearly now than what he had been able to before.
The act of connecting a bridge properly back together had further pushed his senses. The spatial fluctuations of each bridge had their own unique feeling to him now. Partially due to what elemental planes the bridge was attached to and also the strength of the bridge itself.
While the remaining bridges were just waiting to be strengthened, they stood out as weaker. The space mana was naturally thinner and could be said to even be under more pressure there.
To his senses, Walker even felt that the last few bridges he had worked on were entirely different. While some seemed to be weaker, they were weaker in the sense of how much mana they could trade from the elemental planes and the world. Not that they could be broken partially or entirely as he had just dealt with in the last instance.