Hollo Road - Speed Limit Confusion

Can someone please explain to me why the North/East bound direction of Hollo Road has a posted speed limit of 25 MPH, but the South/West bound direction has a posted speed limit of 35? It's a bit confusing, don't you think?

For the life of me I can't imagine why you would want a 25 MPH speed limit on that road (there's one of those portable "your speed is" displays there - tonight it told me that I was doing 40). Anyway - 25 MPH is a little slow. 35 seems more reasonable - I guess I need to be going the other way for that. I'll post some photos here tomorrow.