Slyh Run is a very confusing area since it looks like the city of Columbus & ODOT have culverted several streams and combined them. Slyh Run actually goes through the ODOT Right of Way (recently converted to a wet pond at Broadway and was previously a dry basin with a concrete gutter). Then the stream is culverted because of the 315 and the hospital. It re-enters as a stream at the Ohio Health Property (and is very ditch like with a very narrow riparian area).
Click the link to see the location of two sampling points (A & B)