I don't believe Springville goes all the way through, even though it looks like it on Google (I could be wrong). Germantown, Newberry, and McNamee are the roads I've heard most people mention as ways to get over the hill, although honestly, I've never ridden any of those on the east side of Forest Park (I've ridden up and down the west side of Germantown, Old Germantown, and Springville). If you get up to Skyline and over to Springville, though, it's kind of a fun descent and you can almost coast all the way to PCC. Almost.
Dang! You got shocks, pegs... lucky! --Napoleon Dynamite