| RESERVOIR | UPPER_NIRAR |
| PHOTO |  |
| DISTRICT | COIMBATORE |
| TALUK | POLLACHI |
| TOWN | POLLACHI |
| GIS-LOCATION | LAT:10d17'00"-N; LONG:77d01'00"-E |
| GENERAL HISTORY | RIVER-NIRAR; BASIN-ALIYAR; PERIOD OF CONSTRUCTION-1970 TO 1975; COST-Rs.105.00 LAKHS |
| HYDRAULIC PARTICULARS | CATCHMENT AREA- 75.11SQ.KM; DESIGN FLOOD-1069.36 CUMECS; FRL-1158.24M; MWL-1158.24M; WATER SPREAD AREA AT FRL-0.08SQ.KM ; CAPACITY AT FRL-1.10Mcum |
| DAM DETAILS | TYPE- MASONRY DAM ; TOP OF ROAD WAY-1159.76M; MAXIMUM HEIGHT-25.91M; LENGTH OF MASONRY DAM- 132.59M. |
| SPILLWAY DETAILS | VENTS- 4x9.75x4.57M; CREST-1153.67M; RADIAL GATES; DISCHARGE CAPACITY-1069.36 CUMECS |
| RIVER SLUICE DETAILS | VENTS- 2x1.52x1.83M; SILL-1139.95M; DISCHARGE- 76.97 CUMECS; |
| CANAL SLUICE DETAILS | WATER IS TAKEN TO SHOLAYAR THROUGH AN UNLINED HORSE SHOE TUNNEL 4287M LENGTH. FROM THERE TAKEN TO ALIYAR AND THIRUMURTHI RESERVOIR FOR IRRIGATION THROUGH PARAMBIKULAM AND SIRKARPATHY POWER HOUSE. |
| AYACUT DETAILS | NO DIRECT AYACUT |