culvert

This had been somewhere I had looked at getting into for a few months now and back in the spring of this year me and a few people attempted to enter the old world war 2 bunker through the small opening near the outfall but to our disappointment we found that all of the entrances had been blocked...

History: The Markeaton Brook is an 11-mile-long (17 km) tributary of the River Derwent in Derbyshire, England. The brook rises from its source south of Hulland Ward, and flows for most of its length through the countryside north-west of Derby before entering a culvert to the north of the city...