INTRODUCTION
Indrapuri Reservoir Scheme envisages the construction of 3.9 Km long and 45 m high earth dam across the river Sone connecting Kadwan (24030’15”) and Matiawan (24031’20”: 83037’30”) Villages on the right and left banks in Palamu and Rohtas districts respectively in Bihar. At Present Bansagar Project in sunder construction across the Sone river in the state of M.P. This has necessitated creation of another reservoir somewhere near Kadhwan in order to maintain on assured discharge of the Indrapuri Barrage across the Sone near Dehri-on-Sone. Apart from irrigation, there is a proposal for generation of power by utilising the head thus available at the Kadwan Dam Site.
The village Kadwan is approachable from Bhawanathpur (92040’30”- 83035’10”) by 8 km long road which is partly metalled and partly unmatalled (jeepable toad through jungles). As there is not bridge near by across the Sone river, the village Matiwan on the left bank is approachable via Dehri-on-Sone and its nearest important place is chutia (24032’45”, 83045’) on the right bank though the nearest railway station is Garhwa Road, the site can be approached from Dehri-on-Sone on the grand cord line of the Eastern Railway. The existing Sone barrage on the Sone near Indrapuri located 75 km. downstream of Kadwan
SALIENT FEATURES
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1. |
State |
Bihar |
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2. |
District |
Garhwa |
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3. |
Village |
Kadwan |
Matiwan |
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Latitude |
24030’15” N |
24031’20” N |
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Longitude |
83037’50” E |
83038’30” E |
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4. |
River |
Sone |
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5. |
Situation |
Near Khairwa village in Bhawanathapur P.S. under Garwha Sub-division |
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6. |
Purpose |
Irrigation and Hydro Power |
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7. |
Catchment area upto Dam site |
21,481 sq. mile |
55,636 sq. km. |
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8. |
Free catchment area |
6664 sq. mile |
17,260 sq km. |
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9. |
Maximum annual Rainfall |
66.56 inch |
1,690.55 mm |
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10. |
Minimum annual Rainfall |
28.74 inch |
730.00 mm |
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11. |
Mean annual Rainfall |
47.65 inch |
1,232.10 mm |
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12. |
Designed flood discharge (Routed) |
13,42,650 cusecs |
37,997 Cusecs. |
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13. |
Available 75% dependable run off (annual) Excluding Bansagar Project |
3.89 MAP |
4,805,50 Hect. M. |
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14. |
Available 90% dependable run off (Monsoon) Excluding Bansagar Project |
3.20 MAP |
3,940,10 Hect. M |
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15. |
Mean Annual run off Excluding Bansagar Project |
5,24 MAP |
6,476,20 Hect. M |
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Reservoir |
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Maximum Water level (MWL) |
574.14 ft. |
176.00 M |
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Full Reservoir level (FRL) |
567.58 ft. |
173.00 M |
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Dead storage level (DSL) |
467.51 ft. |
142.50 M |
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Minimum Draw down level (M.D.D.L.) |
498.68 ft. |
158.00 M |
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River bed level |
436.54 ft. |
133.06 M |
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Average River bed level |
446.19 ft. |
136.20 M |
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Dead storage capacity |
0.445 M.A.F. |
54,913 Hect. M. |
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River storage capacity |
3.220 M.A.F |
3,97,348 Hect. M. |
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Gross storage at F.R.L. |
3.665 M.A.F. |
4,52,261 Hect. M. |
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Gross Storage at M.W.L. |
4.090 M.A.F. |
5,04,706 Hect. M. |
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Reservoir area at D.S.L. |
9,143 Ac. |
3700 Hect. M |
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Reservoir area at F.R.L. |
62,021 Ac. |
25,100 Hect. |
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Reservoir area at M.W.L. |
66,963 Ac. |
27,100 Hect M. |
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DAM |
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Type of Dam |
Earth Dam |
Zoned type |
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Elevation of Top dam |
583.98 ft. |
178.00 M |
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Lowest bed level of river |
436.54 ft. |
135.06 M |
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Maximum height of dam |
147.44 ft. |
41.94 M |
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Length of dam |
12,779 ft. |
3895.00 M |
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Spillway |
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Location –Right of river |
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Type of spillway |
Shaped with ski-jump bucket. |
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Length of spillway |
1348.00 ft. |
411.00 M |
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Span – 23 Nos. |
49.20 ft each |
23 Nos. of 15 m each |
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Crest level |
536.08 ft. |
160.4 M |
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Designed head |
38.06 ft |
11.60 M |
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Type of gate |
Radial gate |
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Size of gate |
48.20 ft x 39.40 ft. each |
15x12 M each |
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Cost |
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Total cost of the project |
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1. |
Cost of Reservoir Project |
533.36 Crores |
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2. |
Cost of Power Components |
577.78 Crores |
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Total :- |
1111.14 crores |
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