Markeaton Brook goes through the centre of Derby as a culvert. 
Don't know the exact route but is certainly passes under Sadlergate Bridge https://www.openstreetmap.org/way/27014613 and I think under Victoria Street https://www.openstreetmap.org/way/5039159 before joining the river Derwent near here https://www.openstreetmap.org/way/180320982  and https://www.openstreetmap.org/way/180321012

