Executive Summary

EXECUTIVE SUMMARY

1.0

1.1 Need for the Project

Madhya Pradesh Government proposes to implement a number of Medium and Minor Irrigation Projects in Narmada Basin to provide irrigation water to semi and regions of Khandwa, Harda, Dewas and a part of Indore and Khargone districts. Narmada Basin-Group "A" covers the sub-basins Chandrakeshar, Ajnal, Machak, Chhota Tawa, Khari, Kanar, Kaveri, Jamner and areas directly draining to Narmada. The Proposed project area lies in Chhota tawa Sub basin. Nearly 40 percent of the population is agriculture labourers. The prosperity of the farmers in the area is a gamble in rains. Irrigated agriculture is the prime engine of the rural economy. The standards of living of people of the people if this region would be immensely improved by provision if irrigation facility. The improvment in quality and yield of agriculture products will greatly improve the income of the people. As per the topography of the command area and availability of water, the Aulliya project is proposed to provide irrigation facility to 5000 Ha of Net CCA. The tank is proposed to have a gross storage capacity of 26.246 MCM at FRL of 355.000m. The total length if Earth dam is 1782 m and the maximum height of dam is 20.80m with respect to deepest river bed level 337.50m.

1.2 Location

The Aulliya Medium project dam site is located on the River Ghorapacchar near Roshani village in Khalwa Tehsil of Khandwa district. The project is in the area if Vidhan Sabha Constituency No.176 Harsud. The dam site is 25 Km away from Tehsil Head Quaters. The Latitued & Longitude of the dam location are as below.

Latitude 21º53'57"N

Longitude 76º56'3"E

The scheme can be located in Topo sheet No. 55-C/9, 55-C/13 & 55-B/16.

1.3 Accessibility to Dam Site

The Aulliya Dam Site near Village Roshani is approachable from Ashapur village on Khandwa-Harsud (SH-15) Road at 28.5 Km through an Asphalted road. Nearest Railway station is Channera village in Khankwa District.

1.4 Water Availability

Total Catchment area of Aulliya Project is 108.208 Sq.Km and there are 3 proposed percolation projects on the upstream of this project. The intercepted catchment area of U/S project is 11.015 Sq.Km. Net Catchment Area of the Project is 97.193 sq.Km.

The discharge data for 30 years at project site is generated by making use of Rainfall Run off relation developed at Sukta project site and the rainfall at project site.

The catchment of Aulliya project is influenced by Makrai R.G.S. while command is influenced by both Makrai and Harsud R.G.S. The rainfall data of Makrai and Harsud R.G.S. for the period 1978-79 to 2007-08 is considered. The yield available at the dam site for total catchment from 1978-79 to 2007-08 is calculated. The yield values for catchment area of 97.193 sq.Km for dependabilitiy as shown below.

75% dependable yield 20.870 MCM

Repor- Summary / Divya / doc. 1.5 Irrigation Planning

As per the topography of the command area and availability of water, the Auliya project is proposed to provide irrigation facility to 5000 Ha of Net CCA.

The proposed Net CCA of 5000 Ha is catered by two pressure pipe canal systems viz LBC and RBC in proposed RBC command area, an area of 1750 Ha. is fed by RBC Through LBC it is proposed to irrigate an area of 3250 Ha by

GCA 7500 Ha

Total CCA 5000 Ha

Net CCA 5000 Ha

Annual irrigation Proposed 5000 Ha

Kharif 0 .00 Ha

Rabi 5000 Ha

Intensity of Irrigation 100%

The crop water requirements are worked out for 1 Yrs based on the guide lines suggested in TC No. 25 (with upto date amendments), MPWRD-BODHI

The tank is proposed to have a gross storage capacity of 26.246 MCM at FRL of 355.000m. The principle levels of Aulliya Dam are as follows.

Top Bund Level 358.000 m

Full Reservoir Level 355.000 m

Max water Level 355.000 m

Lowest sill Level 346.100 m

The Submergence area at FRL is 487.06 Ha out of which 352.26 Ha is the cultivated land, 32.182 Ha is uncultivated land, 48.018 Ha is Govt. Land and the 54.60 Ha is the forest area.

1.6 Domestic water supply

In addition to Irrigation facility, the project also envisages supplying 0.63 MCM of water for Domestic needs of 10 villages of Khalwa tehsil for a projected population of 18579 persons by year 2025.

1.7 Alternates of Dam Sites

Two alternates have been studied for Dam alignment near Aulliya & Roshani village. The Dam alignment near Roshani village is found feasible form the storage point of view, command area served and less forest submergence.

1.8 The main components of the Aulliya Dam

1.8.1 Earth Dam

The total length of Earth dam is 1782.00 m and the maximum height of dam is 20.80 m with respect to deepest river bed level 337.50 m.

Repor- Summary / Divya / doc. 1.8.2 Spillway

Alternate studies Made:

i) Cost comparison has been made for type of gates i.e. Vertical & Radial gate. On companson it is found that Radial gate is found economical & the same is adopted.

ii) Alternates have been worked by varying the gate height & water way. On comparison it is found that 6 gates of size 10m x 5m is found economical & the same is adopted.

iii) Alternates have been worked out for central & flank spillway with Radial gates. On comparison it is found that Central spillway is economical compared to flank spillway & the same is adopted.

The Estimated SPF is 1073.63 cumecs. A central gated spillway of length 72.50m is proposed between R.D. 1340.00 m to 1412.50m. 6 Radial steel gates of size 10 x 5 m are proposed over the body wall with 5 piers of 2.5 m thickness to pass the flood discharge.

1.8.3 Non over Flow

Non over flow section of length 10.0m is proposed on either side of spillway.

1.8.4 Irrigation sluice

On Right flank Irrigation Sluice is proposed at RD 1573 m to irrigate 5000 Ha.1.65m x 1.35m of sluice barrel is proposed to carry design discharge of 2.718 cumecs.

1.8.5 Canal System

The project covers 5000 Ha of Net Culturable Command Area that lies on the Right and Left bank of the Ghorapachhar river. Right bank canal takes off from RD 1573.0 m. The service area is 5000 Ha served by 40 Km long canal. The distribution of water from canal is facilitated by pressure and 21 villages namely Pipliya, Mamado, Dhawardi, Ranahi, JamuniyaSarsari, Tigariya, Hasanpura, Khamlay, Timarni, Roshni, Barakund Salidhana, Siralliya, Langoti, Dabiya, Padlya, Khorda, Patalda, Itwa, Kumbidhana, Tawkhedi.

Rabi Crops such as wheat, gram & vegetables are predominatly cultivated in the command area. Kharif crops are sown in small percentage of area. Therefore, taking into consideration the present cultivation and also the suggestion of DDA- Khandwa district, the scheme is designed to provide irrigation to 0 Kharif crops and 5000 Rabi crops. The proposed Net CCA is 5000 Ha and the intensity of irrigation is 100%.

1.9 Following are the financial Parameters.

The Total cost of the project is estimated based in WRD USR in force from 1.4.16 it requires investment of Rs. 16507.99 lakhs. The breakup of which is as below.

Particulars Rs.in Lakhs

Unit-1[Head works] 10715.48

Unit-2[Canal] 5792.51

Total 16507.99

Repor- Summary / Divya / doc. Cost per Ha. of Net CCA Rs. 3.30

Cost per Ha. of proposed Irrigation Rs. 3.30

B.C Ratio 1.52

2.0 On completion of the Project the following benefits can be derived.

 Annual irrigation in 5000 Ha of crops Kharif 0 Ha & Rabi 5000 Ha.  Drinking & industrial water supplies for estimated population of 18597 persons  Rise in sub-soil water level in the project area  Development of fisheries in the reservoir

Employment to local labour largely tribes during construction period.

2.1 Recommendation

The scheme is proposed in tribal area with low standard of living. The percentage of submergence of Culturable land to the proposed irrigation is 9.54 which is well within the WRD norms. The schemes is recommended for implementation due to following reasons.

 Aulliya project is proposed across Ghorpachhar river with catchment area of 108.208 Sq.Km to impound 26.246 MCM of water.  No better storage site is available in the River.  The huge Net Culturable Command Area if about 5000 Ha spread over 21 villages mainly comprising small land holding farmers will be benefitted.  The area has large population of tribes with very low standard of living.  Financial parametrers comprising Cost per Hectare is found Rs. 3.30 lakh & the Benefit to Cost Ration is 1.52 which is economically viable.  The government is also keen for developing the drought prone region. Hence the Aulliya Medium project is recommended for sanction for construction at an rarliest.

( Mukesh Gangrade ) ( S.M. Chaturvedi ) Sub Divisional Officer Executive Engineer Water Resources Sub Division No. 2, Water Resources Division Khalwa Khandwa

( V.P. Bhagora ) ( M.S. Dawar ) Superintending Engineer Chief Engineer Water Resources Circle Narmada Tapti Basin Khargone Water Resources Department Indore

Repor- Summary / Divya / doc. 1.0 INTRODUCTION

1.1 Need for the Project

Nearly 40 percent of the population is agriculture labourers. The prosperity of the farmers in the area is a gamble in rains. Irrigated agriculture is the prime engine of the rural economy. The standards of living of people of the people of this region would be immensely improved by provision of irrigation facility. The improvment in quality and yield of aggriculture products will greatly improve the income of the people.

Secondly, the NWDT has awarded 18.25 MAF of Narmada Waters to Madhya Pradesh to be used until 2025 after which the Tribunal will re-allocate the water among the riparian states. State of Madhya Pradesh is using only a fraction of the water, which is legally allocated to it by the Narmada Water Dispute Tribunal Government of Madhya Pradesh proposes to implement a number of Medium and Minor Projects in the sub-basin. The utilization in any of the projects proposed in the sub-basin will be out of the quota of 5.39 MAF (6648.47MCM) allocated to MP for Medium, Minor, Micro and Pump Projects.

1.2 Location

The project is situated near Roshni village. Toposheet No.55 C/9, 55 C/13 & 55 B/16 cover the project area at latitude 21º53'57" N and longitude 76º56'3.0" E on Ghorapacchar River in Chhota tawa Sub-Basin. The project comes under Khalwa Tehsil of Khandwa district. 21 villages of Khalwa/Harsud Tehsil are benefited from this project.

1.3 Sub-Basin

Chotta Tawa is also called as Sukta in its upper reaches originates at an elevation of EL 510.00m. The river starts in the peaks of Satpura hills flowes down the northen slopes of Satpura hills, joined by tributaries, Abna, Wana, Bham, Agni, Ghorapacahhar, Ruparel, Patal and Samri River, joins Narmada River from left. The total catchment area is 5204.10 Sq Km.

The back waters of Indira sagar Reservoir extend right into Chhota Tawa River. Thus, the confluence point of rivers Ghorapachhar, Ruparel, Patal and Samri with Chhota Tawa have submerged in Indira Sagar Reservoier.

1.4 Relation with the River Basin

The stream is bunded across Ghorapachhar River which is a tributary of Chotta Tawa draining to Indira Sagar Reservoir on the river Narmada from left. The scheme finds place in indicative master plan drawn up for this river basin.

1.5 Socioeconomic Aspects

1.5.1 Population

Total population of Khandwa district is 1309443 persons with the male : female ration of 1000 : 944 and geographical area is 7524.5 SqKm. The population density is 178 persons / Sq. Km & the Literacy rate is 67.53%.

Repor- Summary / Divya / doc. 1.5.2 Tribal Population and Drought Prone Areas

The Khalwa and Harsud taluka of Khandwa are recognized as areas of Tribal population and are drought prone areas.

1.5.3 Land Use

The project catchment area is hilly and nearly 65% catchment is covered by forest of deciduous dry type with Teak and Bamboo. The proposed Command area is an agricultural land with partly forest.

1.6 The Project

Aulliya tank is located near village Roshani of Ghorapachhar River which is a tributarey of Choota Tawa draining to Indira Sagar Reservoir on the river Narmada from Left.

The Aulliya tank is proposed to have a Gross storage capacity of 26.246 MCM and live storage capacity of 22.199 MCM of water from a total catchment area of 108.208 Sq Km. It is proposed to irrigate 5000 Ha of Rabi crops (CCA. 5000 Ha) in villages 21 of Khalwa/Harsud taluk of Khandwa district.

The submergence area at FRL is 487.06 Ha out of which 352.26 Ha is the cultivated land. 32.182 Ha is uncultivated land, 48.018 Ha is Govt land and 54.60 Ha is the forest area.

The estimated cost of the project is Rs. 16507.99 lakhs and the estimated annual benefit is Rs. 3855.40 lakhs. The benefit cost ratio works out to be 1.52 at 10% interest rate and 1% depreciation.

1.7 Accessibility of Dam Site

The Aulliya Dam Site near village Roshni is approachable from Ashapur village on Khandwa-Harsud (SH-15) Road at 28.5 Km through an Asphalted road. Nearest Railway station is Channera village in Khandwa District.

The proposed dam site of Aulliya Medium Project is shown in Index Map.

1.8 Alternates of Dam Site

Two Alternatives have been marked and analyzed for Dam alignment.

Alternate 1 :

Alrenate-1 alignment is situated near the Aulliya village in Ghorapachhar river in Khalwa tehsil of Khandwa district. The nearest rain guage station is Makrai. The 75% dependable annual yield at dam site is 13.221 MCM from a catchment area of 59.90 Sqkm. The tank will irrigate an area of 1625 Ha with gross storage capacity of 12.123 MCM correspondingly the FRL works out to RL 383.500 m.

The submergence area at FRL is 224.20 Ha out of which 145.86 Ha is the cultivated land, 13.89 Ha is uncultivated land, 16.12 Ha is Govt land and 48.33 Ha is the forest submergence.

The Altemate 1 alignment is not feasible from storage point of view, command area served and forest submergence.

Alternate 2 (Proposed Dam Alignment) :

Alternate-2 alignment is situated near the Roshni village on Ghorapachhar river in Khalwa tehsil of Khandwa district. The nearest rain guage station is Makari. The 75% dependable annual yield at dam site is 20.87 MCM from a catchment area of 108.208 Sqkm. The tank will irrigate an area of 5000 Ha with gross storage capacity of 22.246 MCM correspondingly the FRL works out ot RL 355.00 m.

Repor- Summary / Divya / doc. The submergence area at FRL is 487.06 Ha out of which 352.26 Ha is the cultivated land, 32.182 Ha is uncultivated land, 48.018 Ha is Govt. land and 54.60 Ha is the forest area.

Altemate 2 alignment is found feasible from the storage point of view, command area served and less forest submergence. Hence alternate 2 is finalized & adopted.

The salient features of the two alternate dam sites are shown in Table: 1.1. The location of alternate dam sites are shown in index map.

(Mukesh Gangrade) (S.M. Chaturvedi) Sub. Divisional Officer Executive Engineer Water Resources Sub. Divisional NO. 2, Water Resources Division Khalwa Khandwa

Repor- Summary / Divya / doc. 4.8.3 Canal Network

For to irrigate 5000 Ha of area provision for pressure irrigation system with pressure pipe is proposed. The total length of RBC is 20 Km & LBC is 20 Km. RBC will be faded by 1750 and LBC will be 3250 Hact of area. Provision for Power requirement of 1.00 MW. and for this 2 pumps of 500 Kw have been considered. The Average C.C.A. level is consider 330 m and 320 m in RBC and LBC with respect to MDDL of 347.45 m level length of RBC is 20 Km and LBC is 20 Km. have been proposed.

4.9 Geotechnical Investigations

4.9.1 Dam alignment

To assess regional geology, 13 nos. of deep bore holes have been drilled along the proposed main dam alignment. Generally three layer sub-soil profile was noticed from the soil samples collected from boreholes.

Based on the sub-soil profile noticed, foundations for the proposed dam has been finalized. The Longitudinal section of dam showing the bore hole details is enclosed.

4.9.3 Construction material Survey

Quarries have been identified and its samples are collected and necessary test has been carried out to check their suitability. The required quantity of materials is available near the dam sites & based on the test results, the identified quarry materials are suitable as construction materials.

(Mukesh Gangrade) (R.K. Sharma) Sub. Divisional Officer Executive Engineer Water Resources Sub. Divisional NO. 2, Water Resources Division Khalwa Khandwa

Repor- Summary / Divya / doc. 7.11.3 Result of Simulation

Out of 30 years the project is having success in 23 years and in the remaining 7 years failures are observed. The success rate of irrigation is more than 75%.

The failure quantity is

1. 1987-88 = 1.98 MCM

2. 1988-89 = 1.652 MCM

3. 1989-90 = 2.105 MCM

4. 1992-93 = 2.095 MCM

5. 2000-01 = 1.519 MCM

6. 2001-02 = 1.466 MCM

7- 2003-04 = 1.807 MCM

7.11.4 Proposed Utilization of Water

Average Delta of 30 yrs for Proposed Cropping Pattern : 473.853 mm

Proposed net CCA : 5000 Ha

Average water Utilized for Irrigation : 17.17 MCM

Average Reservoir Evaporation : 2.351 MCM

Domestic Water Supply : 0.63 MCM

Average annual Utilization : 20.151 MCM

7.12 fixation of Principal Levels

7.12.1 Lowest Sill level (LSL)/ Dead Storage

As mentioned in para 7.8, Sediment inflow rate of 476cum/SqKm/year is adopted for estimating sediment inflow into reservoir. The sill level of irrigation sluice is decided based on 100 yr NZE. The 100yr NZE works out to be 345.800 m for an FRL of 355.000 m using Moody's method. Thus the LSL is fixed at RL 346.100 m which is little higher than the 100 yr NZE.

7.12.2 Minimum Draw Down Level (MDDL)

The Minimum Draw Down Level is fixed at RL 347.450 m, considering the FSD of the canal & minimum driving head of 0.30m. The capacity at the MDDL is 4.047 MCM.

7.12.3 Full Reservoir Level (FRL)

The FRL is fixed at RL 355.000 m considering the minimum submergence of culturable land and the forest in the erservoir. Subsequently the water balance study has been made to verify the performnace of erservoir. Out of 30 years the project is having success in 23 yeas and in the remaining 7 years failures are observed. The success rate of irrigation is more than 75%.

The gross storage capacity at FRL of 355.00.m is 26.246 MCM and live storage capacity is 22.199MCM(capacity at FRL - Capacity at MDDL) at the proposed dam site.

Repor- Summary / Divya / doc. 7.12.4 Maximum Water Level (MWL)

There are three villages to the upstream of Aulliya dam viz Pipalya Bhawalya, Bhajudhana and Barakund. At FRL of 355.00 m there is no submergence for villages Pipalya Bhawalya, Bhajudhana and in the village Barakund there is marginal submergence. Barakund village gets affected if water level goes above the contour of 355.00 m. Hence it is proposed to restrict MWL to 355.00 m which is also FRL. Hence a gated spillway is to be designed in order to have nill flood rise.

The peak inflow flood into the reservoir is 1073.63 cumecs. Flood routing through the reservoir is done by Modified Plus routing technique technique as given in IS: 5477 Part 4 - 1971. The crest level of Gated spiliway is kept at 350.00 m. The waterway comprises of 6 gates of 10 m width and 5 m height. The pier width is taken as 2.5 m . The coefficient of discharge values are adopted as per IS: 6934 - 1998. The length of spillway thus arrived is 72.5 m with nil flood rise. Hence the MWL is same as the FRL i.e. 355.00 m. The spillway discharging capacity at FRL 355.00m is 1168.10 cumecs.

7.12.5 Free Board and Fixation of Top of Bund Level (TBL)

Freeboard calculation is done in line with IS: 10635 - 1993 using T Saville,s methood. Freeboard is calculated for the condition of Normal freeboard at FRL since both FRL and MWL are same. A freeboard of 3.0m is adopted. Hence the top of dam is fixed at 358.00 m. The detailed calculation is shown in Table 7.11 and Figure 7.3.

7.13 Fixation of Canal Capacity

The net CCA of the project is 5000 Ha. Out of which 3250 Ha is irrigated by Left Bank Canal and 1750 Ha irrigated by Right Bank Canal.

The fortnightly crop water requirement for the command area of LBC and RCB is shown in Table respectively.

Attached

7.14 Submergence

The submergence area at FRL is 477.079 Ha out of which 351.156 Ha is the cultivated land, 32.182 Ha is uncultivated land, 48.018 Ha is Govt Land and the 45.723 Ha is the forest area. The Submergence ration is found 9.54%.

Village wise submergence details and properties coming under submergence are shown in Table-7.14

(Mukesh Gangrade) (R.K. Sharma) Sub. Divisional Officer Executive Engineer Water Resoures Sub. Divisional NO. 2, Water Resources Division Khalwa Khandwa

Repor- Summary / Divya / doc.

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