Sorry man, but the bay doesn't allow bikes and likely never will. I will say that there is a BMX oriented park, with an indoor section, known as NoWear BMX. It's in Lincoln as well. I'm not personally sure about how to get in contact with them, but look it up!
Im friends with one of the NoWear BMX riders. Maybe he can help me out
The NoWear compound is not in Lincoln
Thanks! Your answer is awaiting moderation.