[It's a little while after the whole situation with the dragons is understood and Korra, naturally, has her focus - namely, trying to build her own bridges to the reservoir at the center of its little island. She keeps trying to earthbend things, and her bending isn't affected at all - except the bridges she makes just start acting like the other bridges around: namely, they just start moving around and doing whatever they please]
Alright, this is getting ridiculous. [SHE JUST WANTS TO GET TO THE WATER OKAY.] [Doesn't help that her concentration keeps getting broken by a bunch of baby dragons coming over to play with Naga, who is not as easy to avoid when she starts bounding around happily asldhgsda;]