Sapua Dam

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Sapua dam is constructed across Sapua nalla, in Samakoi sub-basin of Brahmani river basin near village Baliposi of Ghatagaon Tahasil in Keonjhar district. The construction of the project was commenced during 1990 and completed in 1993. The project was envisaged to provide irrigation to 587 ha. in Kharif and 283 ha. in Rabi seasons. The Project consists of 615m long earth fill dam with ogee shaped un-gated surplus escape of 45.72m length on the right flank. The main head regulator is on the left side at RD 53m of dam with design discharge of 1.047 m3/sec. On demand of the local public one irrigation outlet of 0.028 m3/sec capacity has been provided from the body wall of the surplus escape itself and through the left abutment wall through a H.P. conduit to irrigate a high patch of land close to right abutment of the earth dam. Catchment area intercepted at dam site is 18.13 km2. The spillway design flood has been computed to be 243.0 m3/sec. Maximum height of dam from deepest foundation level is 17.33m and gross storage capacity is 1.28 Mm3.