Nottingham Racecourse is located in the 280 acre Colwick Park on the outskirts of Nottingham. Having previously worked at the course we were asked to install new drainage to three isolated areas of the track. The areas affected were on the home straight and the back bend.
In each area a main drain was excavated at 600mm deep and backfilled with 100mm pipe, gravel and sand. Lateral drains were cut at 5m centres, 500mm deep and backfilled with 80mm pipe and gravel to within 150mm of the surface. The trenches were topped up with sand. Finally, sand slits were installed, at 1m centres, 300mm deep. During the backfilling process all trenches were compacted using our custom built tractor attachment.