| Location Map: | India Kerala#India |
| Chenkulam Dam | |
| Name Official: | Sengulam Dam |
| Coordinates: | 10.0108°N 77.0325°W |
| Country: | India |
| Location: | Idukki, Kerala |
| Purpose: | P |
| Status: | O |
| Dam Crosses: | Muthirapuzha river |
| Dam Type: | G |
| Owner: | Kerala State Electricity Board |
| Dam Volume: | 18.4 TCM |
| Spillway Count: | 3 |
| Spillway Type: | Ogee, ungated – overflow section 4.8 × 1.8 m |
| Spillway Capacity: | 70.8 m3/sec |
| Res Name: | Chenkulam Reservoir |
| Res Capacity Active: | 0.3903 MCM |
| Plant Name: | Sengulam Power Station |
| Plant Operator: | Kerala State Electricity Board |
| Plant Coordinates: | 9.9758°N 77.0306°W |
| Plant Turbines: | 4 × 12.8 MW, Pelton-type |
| Plant Capacity: | 51.25 |
| Plant Annual Gen: | 182 MU |
| Website: | Official website |
Chenkulam Dam is a gravity dam located on the Muthirapuzha river in Vellathooval panchayat of Idukki district in the Indian state of Kerala. It spans long and stands . It hosts a 48 MW power plant.
The project was commissioned in 1954 with a capacity of 48 MW (4 x 12 MW). The dam was constructed in 1957 as part of the Chenkulam Hydroelectric Project.[1] [2] In 2002, the project was upgraded from 48 MW to 51.2 MW.[3]
The Chenkulam Project was intended to use the tailrace water of the Pallivasal project. The dam is constructed of masonry. The power house is situated at Vellathooval in Devikulam taluk.[4] The water collected is conveyed through a penstock pipe to the Chenkulam powerhouse in Vellathooval, which generates 51.2 MW of electricity using four 12.8 MW turbines. Annual production is 182 MU. Taluks receiving release flow are Udumbanchola, Devikulam, Idukki, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor and Paravur.
Chenkulam reservoir formed behind the dam. The catchment area of the reservoir is approximately . The tailrace discharge joins Mudirapuzha river and flows downstream to Kallarkutty reservoir.