Yeah. There's four or five similar bridges. The second is right above it, crossing, it it would look like a plus sign if viewed from above. The third bridge is much higher in the stage, and you basically have to sprint through this one once the blades have cleared the walkway. The final one has two sets of two blades and is very narrow. You have to run past the first set of two, stop, wait for the second set to clear and then dash through.
Also, when you get up the battlements, there's a hidden bonfire. A few areas will be scarred by burn marks. You're looking for the area with a corpse and an item sitting near the mark; there should also be crumbled battlements. If you drop down from those broken battlements gently, you'll come to the bonfire.
And in case you're referring to multiple titanite Demons, yes, there are four in total. They're spaced out, though, so you shouldn't have to fight more than one at a time.
Also, when you get up the battlements, there's a hidden bonfire. A few areas will be scarred by burn marks. You're looking for the area with a corpse and an item sitting near the mark; there should also be crumbled battlements. If you drop down from those broken battlements gently, you'll come to the bonfire.
And in case you're referring to multiple titanite Demons, yes, there are four in total. They're spaced out, though, so you shouldn't have to fight more than one at a time.