how to scratch build a moveable truss bridge 22 inch long

[scoobyloven]

im working on my 3rd layout, and this is my frist n scale. i got a 22 inch wide space and the truss bridge i have is getting hit bye my son when he gose under it. i would like to make it move at least to a 90 degree angle for it is out of the way. So when we get ready to run the layout i can move it up for he won't hit it. i've looked at the pre built ones but they are not 22 inches long and don't go to the 90 degrees i want. if any one has any thoughts or suggestions on how this would be done it would be helpful..

 

[Drew1125]

First of all, scoobyloven...Welcome to The Gauge!
By the fact that you mentioned your son "going under the bridge", am I right in assuming that the bridge crosses an aisleway? If that's the case, it's fairly simple to build a removable bridge, as long as you make provisions for the track to stay alligned, & an electrical connection for the bridge rails.