No, I'm pretty sure they're supposed to be weight distributing planks. Although I would argue that if they're like that and it's not assumed that there's not a metal rod keeping the bridge mounted to the cliffs, they should probably have support beams leading down to the water.

Also the section on the right is missing its structuring plank.

Thanks for the input, guys! The bridge is indeed supposed to be far above the water. I tried to use shadows in the water and on the edge of the cliff to left to reflect this, but I suppose the shadows aren't dark enough and thus not very noticeable.

Blindmind, monotony is something I'm always keeping in mind when designing big maps. I have a few techniques to help combat this:

1. None of my dungeons take place in a single type of location. For example, if it takes place in a large tower, there will always be sections where you go outside as well to advance. If the dungeon is located in a cave, there's always a forest section or mountainous section as well.

2. I try to place "landmarks" throughout my maps. If you look at the full map I posted of this cave, you'll notice there are some manmade structures placed throughout the map. This helps break up the monotony of the cave and are easily recognizable. As well, many of my maps have rivers or other water sources weaving in and out of the player's path which I believe helps orient the player.

3. Most of my dungeons, when heavily simplified, are a simple shape. This one is kind of like a plus sign if you simplify it enough.

4. I always make sure to make the path clear and highly visible.

5. If you find a key, you'll always have seen the door it belongs to beforehand. Likewise, if you flip a switch that opens a passage, it will be a passage that you've seen so you don't get lost looking for it.

I learned most of these things from studying Zelda's dungeons. I really hope players don't have a problem navigating my maps! The last thing I want is for my caves to seem bland and repetitive.