Entranceway Bridges

You might get some ideas over on this subject thread,....

https://forum.mrhmag.com/post/layout-room-entrance-swingdown-bridges-3-of-them-in-combo-12210684

I had considered it for...3 seconds

But quickly abandoned the notion.  In my own case, the access/entry bridge is just that:  You need to get in/out often, quickly, and w/o fuss and delay.  Electric mechs are going to be slow and awkward, and add so much more unnecessary complexity to the build.  As to making it larger than 24" or so, which then makes a bascule a good idea at all, well...seems pointless.  Just make the base frame longer and reduce the length of the access walk through so that a single span lift bridge is a more appropriate, working length.  

But I really know squat.  This is, after all, my first around-the-room layout and thus my first lift bridge for walk-through access.  

For you the whole thing might make perfect sense and an electric lifting mechanism might be so much fun and so interesting that waiting to walk through might not mean anything at all.

But if I WERE to go that route, I would design it so it could be lifted either manually or electrically without any additional mechanisms or locking devices to use one system or the other seamlessly.  Seems like that wouldn't be so hard to do, given that you would already be going through all the work to make it an electric lift bridge after all.   

If this is your first walk-through lift bridge, my question is why not keep it simple - as in a single span, manual bridge?  But, then, maybe you just want to build a bascule bridge, and need a place where it can be functionally useful at the same time! Aha!

@B&O Joe Did you look at

@B&O Joe
 

Did you look at how I was going to add my bridges to that swing-up structure?

https://forum.mrhmag.com/post/layout-room-entrance-swingdown-bridges-3-of-them-in-combo-12210684

(not the bascule bridge here, but it could be)....

This is the overall structure that would lift all three bridges levels out of the entranceway in one single quick move,..swing them up towards the ceiling
 
 

Here is what it will look like when raised up and held by a small chain to the ceiling,..
 

Is that anything like you were looking for??

PS: btw, do you have one of those kits? I decided to use another Walthers bridge so I had 2 for sale,...sold one already.