Gangrel Dam: Another name of the Gangrel Dam is Ravishankar Dam. In the Dhamtari District, this location is quite a famous spot for visitors. The dam has been constructed along with the breadth of the river named Mahanadi. The distance of the dam is 15 Kms. A Hydel power project named the Gangrel Hydel Power Project of 10 MV capacity has been developed here. The power for the neighboring area is produced. As much as 15,000 cusecs of water are contained by the Gangrel Dam. This dam is considered to be the largest and the lengthiest dam.