Bridge Starting Position

We couldn’t find it in the Game Manual or Quick Reference Guide. Does the Bridge start the match balanced or tilted to one side?

It’s actually in the definition of bridge:
Bridge – The 14” x 24” structure of VEX IQ plates that sits 3.25” high off the ground when level. The Bridge is mounted on a double hinge that allows the Bridge to tip towards either end of the field. Teams may elect to start the Bridge tipped in either direction or to leave it Balanced. If the Teams don’t make a decision, it will start the Match Balanced.

So the bridge may start tilted to either side or balanced, depending on the teams’ desires. If they don’t choose, then it stays balanced.