I lived on Frog Hollow Road as a child. Our house was a half mile or so west of the bridge at the top of the hill. Our house was built in the late 1800's out of huge limestone blocks. I'm sure it's gone by now. We sat on this bridge with our backs leaning against the tree many summer days. We also swam in the creek and had bonfires. That was when it was clean. 1960's-1970's. My father had a business in Jefferson City until he passed away. Jack Kaufman - MID-MO Well Drilling.