| Dam/Weir: LOWER MEENMUTTY DAM |
| Location | Latitude : 8⁰ 43′ 00 ” N | Dam Features |
| Longitude: 77⁰ 01′ 00” E | Type of Dam | Concrete – Gravity |
| Panchayath | Nandiyodu | Classification | Weir |
| Village | Nandiyodu | Maximum Water Level (MWL) | EL 64.50 m |
| District | Thiruvananthapuram | Full Reservoir Level ( FRL) | EL 62.75 m |
| River Basin | Kallar ar | Storage at FRL | 0.326 Mm3 |
| River | Kallar ar | Height from deepest foundation | 5.75 m |
| Release from Dam to river | Kallar ar | Length | 55.00 m |
| Taluk through which release flows | Nedumangadu, Chirayinkeezhu | Spillway | Ogee – Overflow section- Ungated |
| Year of completion | 2005 | Crest Level | EL 62.75 m |
| Name of Project | Lower Meenmutty SHEP | River Outlet | 2 Nos. scour pipe 1.0 m dia |
| Purpose of Project | Hydro Power | Officers in charge & phone No. | Executive Engineer, Dam Safety Division No. I, Seethathodu, Pathanamthitta (Dist.), Kerala, PIN-689667 Phone-9446008424 |
| Installed capacity of the project | 3.50 MW | Assistant Executive Engineer, Dam Safety Sub Division, Seethathodu PIN- 689667 Phone-9496011955 |
| Project Identification Code ( PIC) | |
| Lower Meenmutty weir is constructed as a part of Lower Meenmutty Small Hydro Electric Project. The scheme envisages the development of power by utilizing the water of river Kallar in the Vamanapuram basin. |