| Dam/Weir: PONMUDI DAM |
| Location | Latitude : 9⁰ 57′ 37 ” N | Dam Features |
| Longitude: 77⁰ 03′ 24” E | Type of Dam | Masonry- gravity |
| Panchayath | Konnathadi | Classification | HH (High Height) |
| Village | Konnathadi | Maximum Water Level (MWL) | 708.66 m |
| District | Idukki | Full Reservoir Level ( FRL) | 707.75 m |
| River Basin | Periyar | Storage at FRL | 51.54 Mm3 |
| River | Panniyar | Height from deepest foundation | 57.71 m |
| Release from Dam to river | Panniyar | Length | 288.80 m |
| Taluk through which release flows | Udumpanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor, Paravur | Spillway | Ogee type- 3 Nos. radial gates, each of size 10.97 x6.4 m |
| Year of completion | 1965 | Crest Level | 701.35 m |
| Name of Project | Panniyar HEP | River Outlet | 1 No. HB valve, 6 ft. dia |
| Purpose of Project | Hydro Power | Officers in charge & phone No. | Executive Engineer, Dam Safety Division No. IV, Pambla, Idukki (Dist.), Kerala, PIN- 685606 Phone-9446008421 |
| Installed capacity of the Project | 32 MW | Assistant Executive Engineer, Dam Safety Sub Division, Kallarkutty Phone-9496011963 |
| Project Identification Code ( PIC) | KL29HH0012 |
| This dam is a part of Panniyar Hydro Electric project and the location of the dam site is at Ponmudi. The Ponmudi reservoir is created by constructing a dam at Ponmudi across Panniyar river. The project is in Mudirapuzha basin, a sub basin of Periyar river basin. The water from Ponmudi reservoir is diverted through a water conductor system to Panniyar Power station (32 MW) located on the left bank of Mudirapuzha. After generating power, the water is released to Panniyar river itself. |
