Work Done Value - (Rs. in Cr.) 468.27

• Project Name: Const. of Erach Multipurpose Dam, Spillway & its allied works.
• Village/Tehsil/District : Jujharpura Village,Garautha,Jhansi
• Source River : Betwa
• Latitude :25° 43'57.45"N
• Longitude : 79° 3'23.99"E
• Catchment Area : 537.5 km. square

---

Hydrology

• Runoff Coefficient : 207730 m³ / km square
• Water Availability : 111.66 mm³

---

River Diversion

• Type : Ring Coffer Dam in two phases

DAM

• Overflow: Gated ogee crest surpressed spillway with breast wall
• Length of overflow including piers : 510.5 m.
• Bottom Level of Gate : EI. 147.50 m.
• Top Level of Gate : EI. 153.00 m.
• Gate open size : 12m. (W) x 5.50m.(H)
• No of Gates : 36
• Design Discharge : 18500 m³/s (Cumecs)
• Size of Sluice : 1.8m. (H) x 1.0m.(W)
• Non Overflow : 365.5 m long leftbank earthen embarkment
  432m long right bank earthen embarkment
• Power Block : 20 m Bay dam Toe Powerhouse
• Top of Dam : EI. 158.50 m
• Top width of Dam : 6.60 m

---

Irrigation

• CCA : 1850 Ha

Reservoir

• FRL : EI. 156.50 m
• MDDL : EI. 147.50 m
• Gross Storage : 61.50 Mm³
• Live Storage : 56.00 Mm³
• Storage of Drinking Water : 10.97 Mm³
• Storage of Irrigation : 8.73 Mm³

---

Power House

• Type : Dam Toe
• I.C : 1.8 MW
• No. & Size of Units : 2 units of 0.9 MW
• Type : Dam Toe