Arpa River is the river of Bilaspur and district in Chhattisgarh. It is a major tributary of the river Seonath that meets with Mahanadi. Arpa River originates from Khodri village of Pendraroad Gaurella block District GPM and flows to meet with Seonath River at Matiyari village of Bilha block of Bilaspur district. 1
| River Arpa | |
| Subdivision Type1: | Country |
| Subdivision Name1: | India |
| Subdivision Type2: | Parts |
| Subdivision Name2: | Chhattisgarh |
| Subdivision Name3: | Coastal Plains |
| Subdivision Type4: | Administrative areas |
| Subdivision Name4: | Gaurela-Pendra-Marwahi and Bilaspur districts, Chhattisgarh |
| Subdivision Type5: | City |
| Subdivision Name5: | Bilaspur, Chhattisgarh |
| Width Avg: | 400 m |
| Depth Avg: | 2-8 m |
| Source1: | khodri khongasara hills |
| Source1 Location: | Bilaspur, Chhattisgarh, India |
| Source1 Coordinates: | 22.09°N 82.14°W |
| Mouth Location: | Gaurela-Pendra-Marwahi district, India |
| Mouth Elevation: | 0m (00feet) |
| Basin Size: | 141600km2 |
| Tributaries Right: | Kharang River, Malaniya, Sonkachar, |
Seonath river is a main tributary of Mahanadi River which is known as the perennial source of irrigation in the state of Chhattisgarh.
Arpa River has its origin from the lust dense forest area of Khondari-Khongsara. In 147 km of the river length, it contributes more than 90 km to the forest area, including Bilaspur city and irrigated lands of this district before meeting to Seonath river. The river is having catchment area of about 2022 km2. During rainy season its water level raises 2–3 meters up and in summer it moves 5 meters down. The river bed is mostly sandy with thickness of about 1.5 meter and few rock exposures at some places.
More than 10 check dams have been constructed on this river. Earlier these check dams were constructed to overcome the problem of irrigation and for human welfare. But due to the drying of its origin sites for last 5 years its water content is decreasing day by day and these check dams have become danger for the river. The maximum part of the rain water gets stored in these check dams and is used by the local people and as a result little water reaches to Bilaspur. 2