Gujarat in June

For Official use only

GOVERNMENT OF INDIA CENTRAL WATER COMMISSION

Report of the Sixth meeting of the Sub-Committee of Coastal Protection and Development Advisory Committee (CPDAC)

o n

Performance Evaluation of Coastal Protection Works

Meeting: 18th- June - 2015 Venue : Meeting hall of the office of Superintending Engineer, Surat Irrigation Circle, Surat Field Visit: 18th and 19th June -2015

INDEX

Sl. Details Page No Number Executive Summary 1-2 1 Summary Record of Discussions of the meeting 3 2 Gujarat Coast 6 3 Site Inspection 7 4 Wrap-up meeting 10 5 Observations of the Sub-Committee 11 6 Erosion-Accretion details along Gujarat Coast - Table-1 13 7 District wise details of Erosion-Accretion along 14 South Gujarat Coast - Table-2 8 List of officers from participating Organisations -Annexure-I 15 9 Map showing South Gujarat Coast - Annexure-II 17 10 Salient features of- Dumas - Annexure- III-A 18 11 Field visit photos of –Dumas - Annexure-III-B 21 12 Salient features of- Danti-Jalalpore - Annexure- IV-A 22 13 Field visit photos of –Danti-Jalalpore - Annexure-IV-B 25 14 Salient features of- Onjal-Machhiwad- Annexure- V-A 26 15 Field visit photos of –Onjal-Machhiwad - Annexure-V-B 30 16 Salient features of- Moti-Danti-Nani-Danti- Annexure- VI-A 31 17 Field visit photos of –Moti-Danti-Nani-Danti- Annexure-VI-B 46 18 Salient features of- Tithal - Annexure- VII-A 47 19 Field visit photos of –Tithal- Annexure-VII-B 48 20 Salient features of- Kolak-Udwada- Annexure- VIII-A 49 21 Field visit photos of –Kolak-Udwada- Annexure-VIII-B 52

EXECUTIVE SUMMARY

The Sixth meeting of the CPDAC- Sub-Committee on performance evaluation of coastal protection works was held on 18thJune 2015 at Surat. The performance evaluation of coastal protection works in South Gujarat Districts of Surat, Navsari and Valsad were taken up.

During the meeting on 18th June 2015, the issues pertaining to coastal protection namely reasons for erosion problems in southern coast of Gujarat, availability/collection of data on coastal processes, measures being undertaken by Govt. of Gujarat, need for proper post construction maintenance, alternate design solutions etc have been discussed and deliberated.

The field inspection of the coastal areas of these districts was carried out on 18th (AN) and 19th June 2015. After field inspections, the committee held a wrap-up discussion on 19th June-2015. The general and specific observations of the Sub-Committee after discussions held with the State Irrigation Department Officers during the meeting and site inspections are summarized as follows.

(i) The anti-sea erosion measures executed by the State Irrigation Department, in the three Districts of South Gujarat are largely based on the design solutions evolved by CW&PRS, Pune. The measures adopted have by and large contributed in minimizing the loss to life and property, besides other advantages.

(ii) The anti-sea erosion measures undertaken at the six locations visited by the Sub-Committee are Rubble Mound Sea (RMS) wall, Retaining wall with stone- filled Poly Propylene Rope Gabions as toe, Stone-filled P.P Rope Gabions (later strengthened with heavier stones).

maintenance, toe scouring and sinking is reported in RMS wall. The cutting/burning of the ropes by local people has led to gradual deterioration of the Rope Gabions.

(iv) The anti-sea erosion measure using stone-filled P.P Rope Gabions alone, executed at OnjalMachhivad and Nani-Danti-MotiDanti is found to have got damaged due to various reasons. Pilferage and cutting of ropes by local people has led to dislodging of the stones and consequent collapse. Further, the overtopping of the gabions during high wave conditions has inflicted major damages. It is suggested that, for future projects experiencing similar coastal environment, the design solution of using stone-filled P.P. rope Gabions as anti- sea erosion measure has to be critically reviewed in view of the experience in South Gujarat. Regular inspection and maintenance is paramount to the longevity of these measures.

(v) Planning and execution of anti-sea erosion measures requires considerable baseline data. Systematic and scientific data collection on coastal processes is important for evolving appropriate design solutions (hard or soft) which as of now is not being carried out in the State. Govt. of Gujarat may consider submitting locations of vulnerable coastal reaches to CWC for inclusion of the same in the proposed Coastal Management Information System (CMIS) for establishing sites for collection of coastal data needed for design of coastal protection measures.

(vi) Holistic planning for anti-sea erosion measures is important to avoid shifting of the problem from one reach to the other.

(vii) Periodic survey and maintenance of the completed coastal protection structures needs to be paid due attention. Possibility of the participation of local beneficiary community in the maintenance of the executed measures needs to be explored.

CENTRAL WATER COMMISSION CAUVERY & SOUTHERN RIVERS ORGANISATION BEACH EROSION DIRECTORATE, KOCHI – 682 020

Sixth meeting of Sub-Committee of Coastal Protection and Development Advisory Committee (CPDAC) on

Performance Evaluation of Coastal Protection Works

Meeting: 18th June -2015 Venue: Meeting hall of the office of Superintending Engineer, Surat Irrigation Circle, Surat Field Visit: 18th and 19th June-2015

1.0 SUMMARY RECORD OF DISCUSSIONS OF THE MEETING

The Sixth meeting of the CPDAC - Sub-Committee on performance evaluation of coastal protection works was held on 18th June-2015 at Surat. The performance evaluation of coastal protection works in South Gujarat Districts namely Surat, Navsari and Valsad were taken up. The field inspection of the coastal areas of these districts was carried out on 18th (AN) and 19th June-2015. The following members were present,

CPDAC Sub-Committee Members:

1 Shri J. Chandrashekhar Iyer, Chief Engineer, C&SRO, CWC, Coimbatore - Convenor 2 Shri A.D.Kanani, Superintending Engineer, Surat Irrigation Circle, Surat - Member 13 Dr. M.D. Kudale, Joint Director, CWPRS, Pune - Member 24 Dr. Ilangovan,.Senior Principal Scientist, NIO, Goa - Member 35 Dr. A.S.Rajawat, Head, Geo Sciences Division, SAC, Ahmedabad - Member 6 Shri. Rajesh Yadav, Director, Coastal Erosion Dte, CWC, New Delhi - Special Invitee 17 Shri R.Thangamani, Director, Beach Erosion Directorate, CWC, Kochi - Member- Secretary

The list of officers from the participating organisations is appended as Annexure-I

Shri A.D. Kanani, Superintending Engineer, Surat Irrigation Circle, Surat welcomed all the members and expressed his thanks on behalf of Govt. of Gujarat for choosing the anti-sea erosion projects of Govt. of Gujarat for performance evaluation.

Shri. J. Chandrashekhar Iyer, Chief Engineer, Central Water Commission and Convener of the Sub-Committee welcomed all the members of the Sub-Committee and other participants to the meeting. He also thanked officials of Govt. of Gujarat in organizing the meeting within a short notice. In his introductory remarks, he briefly highlighted the severe coastal erosion problems being faced along the east & west coast of the country. He also briefly touched upon the mandate of the Sub-Committee with regards to performance evaluation of completed coastal protection measures and in suggesting alternate design solutions.

For the information of the members & participants, Shri. R.Thangamani, Director, Central Water Commission and Member-Secretary of the Sub-Committee made a power point presentation about the CPDAC-Sub-Committee on Performance Evaluation of Coastal Protection works. In his presentation, he highlighted about the background of the Sub-Committee, constituted based on the decision taken in the 6th CPDAC meeting held at Puducherry in April-2004, its mandate and the earlier evaluation studies carried out by this Sub-Committee in the other States.

Shri. A.D. Kanani, Superintending Engineer, Surat Irrigation Circle, Surat representing Govt. of Gujarat made a power point presentation on the coastal erosion problems in Gujarat and the protection works undertaken in the South Gujarat Districts of Surat, Navsari and Valsad. He informed that the design of anti-sea erosion works for Gujarat Coast is mainly being given by Central Water and Power Research Station (CWPRS), Pune. He further informed that the coastal protection measures adopted in South Gujarat against sea erosion comprises of Rubble Mound Sea (RMS) wall, Earthen bund with dry rubble pitching, Poly Propylene (P.P) Rope flexible Gabion filled with stones ( with and without retaining wall).

He also presented the data from the shoreline change Atlas prepared jointly by Space Application Centre (SAC), Ahmedabad and Coastal Erosion Directorate, CWC (2014) using satellite data of 1989-91 and 2004-06 time frame on 1:25,000 scale for the entire country.

The extract of the details of Gujarat Coast taken from the Atlas is presented in the following tables,

Salient Features of Gujarat Coast - Table-1 District wise details of the South Gujarat Coastline - Table-2 ( Area considered for the performance evaluation)

Dr. A.S. Rajawat, Head, Geo Sciences Division, SAC, Ahmedabad explained the members about the shoreline change study conducted by SAC-CWC using the Remote sensing data and its usefulness in the coastal planning. He emphasized the need for periodical updation of the study using the latest available satellite imageries. He also informed that besides hard solutions, soft solutions including mangrove protection also needs to be encouraged wherever feasible. The representative from Govt. of Gujarat replied that mangrove plantation is being implemented in the Bharuch region of Gujarat.

Dr. Ilangovan, Senior Principal Scientist, National Institute Oceanography (NIO), Goa raised the concerns over the increased housing structures in the coastal zone and need for regulating the same as per the Coastal Regulation Zone (CRZ) Act. The representative from Govt. of Gujarat informed the members that the CRZ Act is being implemented in the State by the concerned agencies.

Shri. Rajesh Yadav, Director, Coastal Erosion Directorate, CWC, New Delhi emphasized about the need for proper documentation of the functioning of the all coastal protection measures so that the same act as a vital input for future proposals. He also informed the committee about the new scheme “Coastal Management Information System (CMIS)” under which CWC is proposed to establish coastal data collection sites along the coast of India. He also requested the Govt. of Gujarat to prioritize two or three most vulnerable coastal erosion sites and sent it to CWC for inclusion in the CMIS.

Dr. M.D. Kudale, Joint Director, CWPRS, Pune and design consultant for the Govt. of Gujarat for anti-sea erosion works, appraised the members about the various measures recommended. He also informed the members that the designs recommended are based on the site condition, material availability as well as fund availability. He stated that there is no systematic data collection mechanism in the state. Hence the tidal data of Gujarat Maritime Board and data from Wave Atlas are used for the design purpose.

Shri. J. Chandrashekhar Iyer, Chief Engineer, CWC summed up the discussions seeking the attention of members to the following points for consideration. (i) Main reason for erosion along the South Gujarat Coast. (ii) Availability/Collection of data on coastal processes. (iii) Normal design life of the coastal protection measures. (iv) Manual for post-construction maintenance of the coastal protection measures.

Dr. M.D. Kudale, Joint Director, CWPRS replied to the observations of the Convener which are as detailed below,

(i) The main reason for the erosion in South Gujarat is the On-shore/Off-shore hydrodynamics. (ii) The tidal data of Gujarat Maritime Board and data from Wave Atlas are used for the design purpose. (iii) Fixing the life of coastal protection measures is very difficult because of the extreme events like Tsunami. (iv) Manual for post-construction maintenance of every coastal protection measure suggested is being issued along with the design by CWPRS.

It was decided that the Committee shall inspect the coastal protection measures and there after the broad observations of the Committee can be summed up.

Shri. J. Chandrashekhar, Chief Engineer, CWC appreciated the efforts of Govt. of Gujarat in timely implementing the coastal protection measures for safeguarding life and property. The discussions ended with vote of thanks to the chair and the organisers.

2.0 GUJARAT COAST

The coast line of Gujarat is divided into four regions namely, (i) South Gujarat (ii) Khambhat (iii) Sourashtra and (iv) Kutchh. The coastal protection works selected for the performance evaluation are lying in the districts of Surat, Navsari and Valsad which lies in the South Gujarat Coastal region.

The general wave height and wave current in coast of South Gujarat is reported to be of the order of 3 to 3.8 m and 0.35 m/sec to 0.5 m/sec respectively. The maximum tide recorded at Gulf of Khambhat is of the range of 10 to 11 m. The tidal range in the Gulf of Kutch is of the order of 6 to 8 m. In the southern coastal districts of Surat, Navsari and Valsad, the tidal range varies between 7 to 8 m.

The long shore sediment transport along the south Gujarat coast is from North to South except during the months from July to September during which period the sediment transport is from South to North.

3.0 SITE INSPECTION

The Sub-Committee undertook a field visit to the coastal protection works in the afternoon of 18th June and 19th June-2015 and visited the coastal protection measures implemented in the South Gujarat Coast. The map showing the South Gujarat Coast (area considered for performance evaluation) is appended as Annexure-II

3.1 Dumas, Surat District (18/06/2015)

The Village Dumas-Sultanabad is situated on the coast near the mouth of Tapi River. It is about 20 km away from Surat Railway Station. As reported by State Irrigation Department, the Dumas-Sultanabad beach has eroded by about 90 m width in last 10 years.

The primary purpose of the protection measures envisaged by the State Govt is protection to the habitats situated on the back shore from the wave propagating through the Arabian sea, thereby reducing the magnitude of damage to the property, loss of life etc. The reported benefits of the protection measures as reported by State Irrigation Department include protection to around 2500 Ha of land, protection to residences, facilitating fishing activity in reclaimed land, prevention of salinity ingress and enhancement of tourism and related activities.

The salient features of the project and the sea wall design adopted as provided by State Govt. officers is enclosed as Annexure-III-A. The photographs of the field visit of this site is at Annexure-III-B.

3.2 Danti-Jalalpore ( 18/06/2015)

The village Danti in Jalalpur Taluk of Navsari District is situated on the mouth of Mindhola River and is about 25 km from Maroli Railway Station. The left bank of river Mindhola at village Danti is facing severe erosion since last many years. As reported, about 50 m width of bank has eroded in the last 10 years.

The coastal protection works have been undertaken and completed to protect coast, Govt. and private properties as well as provide safety to the villagers.

The protection design adopted comprises of concrete retaining wall with stone filled P. P. Rope Gabions in the toe. The salient features of the project, design features and schematic drawings as provided by the State Govt. officers is enclosed as Annexure-IV-A. The photographs of the protected site is at Annexure-IV-B

3.3 Onjal-Machhiwad (19/06/2015)

Onjal-Machhiwad in Jalalpore Taluk of Navsari District is situated on confluence of Kanani Khadi & Arabian Sea and is about 25 km from Navsari Railway Station. The right bank of Kanani Khadi and the coast of Arabian sea at village - Onjal Machhiwad is facing severe erosion since last many years. As reported, about 300 m width of beach has eroded in the last 10 years. Protection work is constructed to protect coast, Govt. properties, private properties, new light house as well as provide safety to the villagers.

The original design proposed for this site is stone filled P.P. Rope Gabions which was constructed in the year 2013. But during the monsoon of 2014, the structure collapsed. Later, a revised sea wall design was given by CWPRS with heavy stones weighing 2 to 2.5 tonnes each.

The salient features of the project, design features and schematic drawing of old design and new design as provided by State Govt. officers is enclosed as Annexure-V-A. The photographs of the protected site is Annexure-V-B.

3.4 Moti-Danti & Nani-Danti (19/06/2015)

The village Nani Danti-Moti Danti is located 25 km north of Valsad. It is reported that during the last 50 years, the land has eroded by about 2000 m. Anti-sea erosion works at this place has been executed to protect the villages. Firstly, anti-sea erosion measures using stone filled P.P. Rope Gabions were executed. But the structure got damaged and was washed away. Now, on experimental basis, new rubble mound sea wall with 3 to 8 ton stones is being implemented.

The salient features of the project, design features and schematic drawing of old design and new design as provided by State Govt. officers is enclosed as Annexure-VI-A. The photographs of the protected site is Annexure-VI-B.

3.5 Tithal (19/06/2015)

Tithal, Bhagdawada and Surwada villages are located about 5.0 km away from Valsad town along the coast. Tithal Beach is an important tourist destination where Swaminarayan Temple, Sai Temple, Shanti Niketan, Jain Temple and other tourist places are located. Besides, private property, local residential houses, agriculture land, hotels, guest houses and various Government properties are also existing.

Due to severe erosion endangering life and property, Govt. of Gujarat constructed protection wall for a length of 3085 m along the coast of these villages adopting the design given by CWPRS, Pune. The protection wall is safeguarding human life and property of 165.0 hectare land of villages Tithal, Bhagdawada and Surwada, Religious places, Hotels, Guest Houses and other properties. A 6.0 m wide road along with parapet wall and steps is provided in the wall to facilitate tourism.

The design features and schematic drawing of the project as provided by the State Govt. officers is enclosed as Annexure-VII-A. The photographs of the field visit of this site is at Annexure-VII-B.

3.6 Kolak-Udwada (19/06/2015)

The village Kolak-Udwada is located 25 km away in west side from Valsad. The culturally important Atas Beharam (Parsi Agyari) is nearby about 500 m from sea shore. As reported, the Kolak-Udwada village beach has eroded by about 500 m width in the last 10 years. The initial design provided by CWPRS is stone filled P.P. Rope Gabions. But the P.P Rope Gabion failed to serve its purpose fully. Hence later, CWPRS modified the design and strengthened the structure with an armour layer of heavy stones of 1 to 1.5 tonne. As reported, the protection work carried out has protected human life and property. The culturally important Parsi village “Udwada” is protected against erosion.

The salient features of the project, design features and schematic drawing of design as provided by the State Govt. officers is enclosed as Annexure-VIII-A. The photographs of the field visit of this site is at Annexure-VIII-B.

4 WRAP-UP MEETING

After the field inspection, the committee members had a wrap-discussion in the afternoon of 19/06/2015. The Committee recorded its appreciation to the officials of Govt. of Gujarat for organizing the CPDAC Sub-Committee meeting and field visits in a well co- ordinated and systematic way.

5 OBSERVATIONS OF THE SUB-COMMITTEE

The general and specific observations of the Sub-Committee after discussions held with the State Irrigation Department Officers during the meeting and site inspections are summarized as follows.

(iii) The RMS wall at sites Dumas, Tithal and Kolak-Udwada is found to have served its purpose well. Similarly, the retaining wall with stone-filled P.P Rope Gabions as toe is also serving its purpose. However due to lack of periodical maintenance, toe scouring and sinking is reported in RMS wall. The cutting/burning of the ropes by local people has led to gradual deterioration of the Rope Gabions.

(iv) The anti-sea erosion measure using stone-filled P.P Rope Gabions alone, executed at Onjal Machhivad and Nani-Danti-Moti Danti is found to have got damaged due to various reasons. Pilferage and cutting of ropes by local people has led to dislodging of the stones and consequent collapse. Further, the overtopping of the gabions during high wave conditions has inflicted major damages. It is suggested that, for future projects experiencing similar coastal environment, the design solution of using stone-filled P.P. rope Gabions as anti- sea erosion measure has to be critically reviewed in view of the experience in

South Gujarat. Regular inspection and maintenance is paramount to the longevity of these measures.

(vi) Holistic planning for anti-sea erosion measures is important to avoid shifting of the problem from one reach to the other.

Table-1

Erosion-Accretion details along Gujarat Coast as extracted from the SAC-CWC (2014) Study

• As per the SAC-CWC(2014) study, the shore line of the Gujarat state is 1482.13 km (does not include length of mouth of estuary, rivers, creeks and their inner parts)

Zone Accretion Erosion Stable Total length length length length (km) (km) (km) (km)

South Gujarat 8.02 146.21 4.73 158.96

Khambhat 79.30 48.38 66.79 194.47

Saurashtra 80.28 178.51 574.57 833.36

Kutchh 130.39 113.33 51.62 295.34

Total 297.99 486.43 697.71 1482.13

Table-2

District wise details of Erosion-Accretion along the South Gujarat Coast as extracted from the SAC-CWC (2014)Study (Area considered for the performance evaluation)

District Accretion Erosion Stable Total length (km) length (km) length (km) length (km)

Surat 4.36 57.62 0.00 61.98

Navsari 0.00 23.35 0.00 23.35

Valsad 3.66 65.24 4.73 73.63

Total 8.02 146.21 4.73 158.96

Annexure-I

List of Officers from participating organisations

1. Shri R. Ratheesh, Scientist, Space Application Centre, Ahmedabad. 2. Shri S.R. Mahakal, Superintending Engineer, Damanganga Project Circle, Valsad. 3. Shri R.M. Patel, Executive Engineer, Surat Canal Division, Surat. 4. Shri Vijay.M. Mehta, Executive Engineer, Drainage Division, Navsari. 5. Shri R.G. Dhangar, Executive Engineer, Damanganga Canal Investigation Division, Valsad.

CPDAC-Sub-Committee meeting in session at Surat on 18/6/2015

Annexure-III-A

DUMAS

SALIENT FEATURES OF ANTI SEA EROSION SCHEME.

> LOCATION :- The Village Dumas-Sultanabad situated on the coast of Arabian Sea and near the mouth of Tapi River. It is about 20 K.M. away from Surat Railway Station.

> EROSION :- The Dumas -Sultanabad beach eroded in last 10 years in about 90 mt. width.

SALIENT FEATURES :

> LENGTH : Between Ch.0 mt. to 2450 > CREST R.L. : 10.50 mt. > H.T.L. : 8.90 mt. > CREST WIDTH : 4.00 mt. > TOE R.L. : 2.05 mt. > TOE WIDTH : 5.00 mt. > SEA SIDE SLOPE : 1:2.5 > LATITUDE : 21° 05'59" N > LONGITUDE : 72° 42'6.7" E

DESIGN DETAILS :

• TOE > BASE LAYER : 5-20 kg Stone 50-200 kg stone > TOP LAYER : 1.0T to 1.5 T Stone > FILTER Geofabric Filter with 0.15 m thick Single layer of Gunny/ Nylon bags • CORE - > BASE LAYER : 5-20 kg Stone > MIDDLE LAYER : 50-200 kg stone > ARMOUR LAYER : 2.0T to 2.5 T Stone > DESIGNED BY: : C.W.P.R.S., Pune > ESTIMATED COST : Rs.53.26 crore > LAQ : Not Required > STATUS : Completed 18

BENEFITS :

> VILLAGES : : Dumas- Sultanabad- Bhimpore > POPULATION : 25000 Nos > HOUSES : 270 > LAND : 2500 ha > LAND PROTECTED : More than 5.0 Km > ESTIMATED COST : 3264.96 Lacs > ACTUAL : 2918.43 Lacs EXPENDITURE > CRZ CLEARANCE : MOEF Letter No. F. No.11- 40/2013/14-III Dt. 10/12/2013 > HTL/LTL SURVEY : 1:4000 scale is prepared by Anna University, Chennai. > RAPID EIA : Indian Institute of Technology (IIT-Mumbai), Pavai

> TOTAL LENGTH OF SEA WALL : 2450 METER > ESTIMATED COST : APPROX.3281.00 LACS > DESIGN WAVE HEIGHT : 2.80 METER > ARMOUR LAYER : 2.0 TO 2.50 T STONE > ARMOUR SLOPE : 1:2.5 > SECONDARY LAYER : 50 TO 200 KG STONE > CORE : 5 TO 20 KG STONE > TOE : 1.0 T TO 1.5 T STONE > GEO FABRIC FILTER/GRIT : 0.30 METER BAGS > TOE LEVEL : +5.00 METER > TOE SLOPE : 1:2 > CREST LEVEL : +10.50 METER > CREST WIDTH : 4.00 METER > LEE SIDE ARMOUR : 2.0 T TO 2.5T STONE > LEE SIDE SLOPE : 1:1.5

Annexure-III-B

Field visit photos of site Dumas, Surat- 18/06/2015

21 Annexure- IV A DANTI-JALALPORE ANTI SEA EROSION SCHEME Village : Danti, Ta. Jalalpor Dist. Navsari.

(A) General

► Location : Village: Danti, Tal. :Jalalpor, Dist.: Navsari is situated on the Mouth of Mindhola River and about 25 Kms. From Maroli Railway Station.

► Importance : Protection work is Constructed to protect coast,Govt. properties, Private properties as well as provide safety to the Villagers.

► Erosion : The left bank of river-mindhola at village Danti facing severe Erosion since last many years. In last 10 years, about 50 mt. width bank eroded.

(B) Salient Features

► Length : Completed Work:- from Ch.-30 to 1150 mt.(1180mt.)

►Crest RL: 11.50 mt.

►Toe RL : 8.96mt.

► HHWL : 10.50 Mt.

► (1) Ch. -30 Mt. Latitude : N 21° 02’ 56.14” Longitude : E 72° 43’ 52.27”

► (1I) Ch. 800 Mt. Latitude : N 21° 02’ 49.67” Longitude : E 72° 44’ 07.07”

► (1II) Ch. 1150 Mt. Latitude : N 21° 02’ 36.45” Longitude : E 72° 44’ 07.82”

► Land Acquisition : Nil

► Status : Work Completed in Year:2012-13 (1180 mt. Length) 22

Design is given vide letter No.130/7/71-CE-3829,dtd.20/11/2008 (RCC Wall and Gabions protection at River Side) by Central Water and Power Research Station (CW&PRS),Pune.

►Retaining Wall : CC 1:3:6 with 10 mm dia 15 cm c/c steel both ways. Base RL 7.5 to 11.50 mt at top.

► Geo Fabric Filter : Gunny/Plastic Bag filled with 5.00 mm size stone grit & laid on Geo Fabric filter GWF-40-200 in 15 cm thickness. 3 ►Toe Portion : P.P. Rope Gabion of Size 1.5 X 1.0 X 0.5 mt. Base RL 8.50 to 9.00 mt

►Slope : P.P. Rope Gabion of Size 1.0 X 2.0 X 0.5 mt. & 1.0 X 1.5 X 0.5 mt & 1.0 X 1.0 X 0.5 mt Base RL 9.00 to 10.90 mt : Sea Side Slope 1:1.5 (V:H)

►Core : 10 to 20 kg.stone (upto RL 10.40 mt.)

(D) Benefits

►Villages : Danti Ta. Jalalpor, Dist. Navsari. ►Population : 4450 Nos. ► Houses : 500 Nos. ►Total Land : 55 Ha.

Annexure-IV-B

Field visit photos of site Danti-Jalalpore- 18/06/2015

25 Annexure V-A ONJAL-MACHHIVAD

ANTI SEA EROSION SCHEME

VILLAGE :-ONJAL-MACHHIVAD , TALUKA :- JALALPORE DISTRICT :- NAVSARI.

(A) General

► Location : Village: Onjal-Machhiwad , Tal. :Jalalpor, Dist.: Navsari is situated on meeting point of Kanani Khadi & Arabian Sea and about 25 Kms. from Navsari Railway Station.

► Importance : Protection work is Constructed to protect coast, Govt. properties, Private properties, new light house as well as provide safety to the Villagers.

► Erosion : The Right bank of Kanai Khadi and coast of Arabian sea at village Onjal Machhiwad facing severe Erosion since last many years. In last 10 years, about 300 mt. width of beach eroded.

(B) Salient Features

► Length : Completed Work:- from Ch.168 to 1560 mt.(1392 mt.)

►Crest RL: 10.20 mt.

►Toe RL : 4.00 mt.

► HHWL : 8.35 Mt.

► (1) Ch. 168 Mt. Latitude : N 20° 48’ 16.87” Longitude : E 72° 50’ 25.01”

► (II) Ch. 1560 Mt. Latitude : N 20° 48’ 51.06” Longitude : E 72° 49’ 37.99”

► Land Acquisition : Nil ► Status : Work Completed in Year:2013-14

Design is given vide letter No.130/7/71-CE—2010/2373,dtd.09/07/2010 (Heavy Stone of 2 to 2.5 T) by Central Water and Power Research Station (CW&PRS),Pune.

► Geo Fabric Filter : Gunny/Plastic Bag filled with 5.00 mm size stone grit & laid on Geo Fabric filter GWF-40-200 in 15 cm thickness.

►Toe Portion : Single Layer of 2 to 2.5 T.Stone (1.9 mt. thick & RL upto 4.00 mt.)

►Slope : Single Layer of 2 to 2.5 T.Stone (1.9 mt. thick & RL upto 10.20 mt.) : Sea Side Slope 1:2.5 (V:H)

(D) Benefits

►Villages : Onjal-Machhiwad Ta. Jalalpor, Dist. Navsari. ►Population : 8500 Nos. ► Houses : 1300 Nos. ►Total Land : 450 Ha.

Annexure-V-B

Field visit photos of site Onjal-Machhivad- 19/06/2015

ANTI SEA EROSION SCHEME Annexure-VI A

VILLAGE: - NANI DANTI-MOTI DANTI, TALUKA: - VALSAD, DISTRICT: - VALSAD. P. P. Rope Flexible Gabion Type ASE Wall

 GENERAL :

 LOCATION :- Village Nani Danti-Moti Danti, located 25km away in North side from Valsad District place.  EROSION :- The Nani Danti-Moti Danti Village land eroded in last 50 Years at 2000 mt. width.  Importance :- Safety to village.  SALIENT FEATURES :  Total Sea Coast : - 4410 MT.  LENGTH OF WALL :- 1640 MT. (CH.1600MT. TO 3240MT.)  CREST R.L :- 10.50 MT.  HIGH TIDE LEVEL :- 9.70 MT.  CREST WIDTH :- 2.00 MT.  TOE R.L :- 7.0 MT.  TOE WIDTH :- 3.0 MT.  SEA SIDE SLOPE :- 1 : 2 Ch. 1600 Mt.  Latitude 20º 43.943’ N  Longitude 72º 51.179’ E Ch. 3240 Mt.  Latitude 20º 43’03.89” N  Longitude 72º 51’22.40” E

 DESIGN DETAILS :- * TOE  BASE LAYER :- Up to 20 Kg Stones.  TOP LAYER :- 1× 1 × 3 Mt. P.P. Rope Gabion

* CORE  BASE LAY ER :- Up to 20 Kg Stones. (In Variable Thickness)  MIDDLE LAYER :- 20 KG to 30 KG (STONES.0.50 MT THICK)  ARMOUR LAYER :- 1× 1 × 3 Mt. P.P. Rope Gabion (In One Layer)

 DESIGNED BY :- CWPRS , PUNE.  ESTIMATED COST :- Rs. 742.67 Lacs.  LAND ACQUISITION :- NIL.  STATUS :- DAMAGED and Washed out  BENEFITS:-  VILLAGES: - :- NANI DANTI-MOTI DANTI, KAKAWADI, DHOLAI, DANDI, MALVAN  POPULATION :- 14000 Nos.  HOUSES :- 3200 NOS.  LAND :- 900.00 HECT. 3132316

337 33 32

Village : Nani Danti – Moti Danti, Taluka : Valsad, Completed Dist. : Valsad.

123433

Village : Nani Danti – Moti Danti, Taluka : Valsad, Completed Dist. : Valsad.

133435

Village : Nani Danti – Moti Danti, Taluka : Valsad, During High Tide Dist. : Valsad.

14 3536

Village : Nani Danti – Moti Danti, Taluka : Valsad, During High Tide Dist. : Valsad.

1536 3738

Village : Nani Danti – Moti Danti, Taluka : Valsad, Damaged Condition Dist. : Valsad.

37 16 38

Village : Nani Danti – Moti Danti, Taluka : Valsad, Damaged Condition Dist. : Valsad.

173839

ANTI SEA EROSION SCHEME

VILLAGE: - NANI DANTI-MOTI DANTI,

TALUKA :- VALSAD, DISTRICT :- VALSAD. Rubble Mounted Using 20 kg to 3.5 Tonne Stones ASE Wall  GENERAL :

 LOCATION :- Village Nani Danti-Moti Danti, located 25km away in North side from Valsad District place.  EROSION :- The Nani Danti-Moti Danti Village land eroded in last 50 Years at 2000 MT. width.  Importance :- Safety to village.  SALIENT FEATURES :  TOTAL SEA COAST : - 4410 MT.  LENGTH OF WALL :- 570 MT. (CH.3390 MT. TO 3960 MT.)  CREST R.L :- 12.50 MT.  HIGH TIDE LEVEL :- 9.70 MT.  CREST WIDTH :- 4.00 MT.  TOE R.L :- 5.70 MT.  TOE WIDTH :- 6.0 MT.  SEA SIDE SLOPE :- 1 : 3 Ch. 3390 Mt.  Latitude 20º 42.982’ N  Longitude 72º 51.405’ E Ch. 3960 Mt.  Latitude 20º 42.665’ N  Longitude 72º 51.483’ E  Design criteria Design is given vide letter no.121/1/CE-2013, Dtd.23/01/2014

* TOE  BASE LAYER : - 200 KG to 300 KG STONES. (0.90 MT. THICK)  TOP LAYER : - 1.0 Tone to 1.5 Tone STONES. (1.60 MT THICK)

* CORE  BASE LAYER :- 20 KG TO 40 KG STONES. (IN VARIABLE THICKNESS)  MIDDLE LAYER :- 200 KG TO 300KG (STONES.0.90MT THICK)  ARMOUR LAYER :- 3.0 to 3.5 Tone Stones (STONES.2.15 MT THICK)  DESIGNED BY :- CWPRS , PUNE.  ESTIMATED COST :- RS. 11.04 CRORES  LAND ACQUISITION :- NIL.  STATUS :- Work In Progress  BENEFITS :-  VILLAGES: - :- NANI DANTI-MOTI DANTI, KAKAWADI, DHOLAI, DANDI, MALVAN  POPULATION :- 14000 Nos.  HOUSES :- 3200 NOS.  LAND :- 900.00 HECT.

392840

294140

Round Head at end of wall

Completed wall

334142

Stair at ASE wall

433442

43 35 44

364445

Annexure-VI-B

Field visit photos of site Nani-Danti - Moti-Danti- 19/06/2015

Annexure-VII A

Annexure-VII-B

Field visit photos of site Tithal- 19/06/2015

48 Annexure-Annexure-Annexure- VII A VIII VII A A Annexure -VIII A Annexure VIII A ANTI SEA

VILLAGE :. KOLAK-UDAVADA , TALUKA :- PARDI DISTRICT :- VALSAD.

* GENERAL:

r LOCATION Village Kolak-Udavada, located 25km away in west side from Valsad District place. Latitude:- 20" 28'56.80" N Longitude:- 72" 51'50.94" E / IMPORTANCE :- Atas Beharam (ParsiAgyari) near by about 500 m from sea shore. r EROSION The Kolak-Udavada Village beach eroded in last 10 Years @ 500 mt. Width.

* SALIENT FEATURES:

/ CREST R.L. :- 8.50 MT.

r CREST WIDTH :- 3.00 MT. F TOE R.L. :- 3.0 MT. 'F SEA SIDE SLOPE :- 1 :2.5

* ToE r TOP LAYER 1.0 to 1.5 t stone * coRE :- up to 5 to 20 kg loose stone

/ DESIGNED BY :- CWPRS, PUNE. F ESTIMATED COST :- RS. 566.27 Lacs. TENDERCOST :- Rs.401.49 Lacs. r ACTUALCOST :- Rs.410.85 Lacs. r NAME OF AGENCY :- Sonal Construction. Surat. r WORK COMPLETED ON i 1210412O12 :- NlL. :- ANTI SEA EROSION WORK WORK COMPLETED)

r BENEFITS :- o VILLAGES:- . :- UDAVADA o POPULATION :- 3500 NOS. r HOUSES :- 850 NOS.

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50 Village : Kolak - Udavada, Taluka : Pardi, Work Completed Dist. : Valsad.

51 Annexure-VIII-B

Field visit photos of site Kolak-Udwada- 19/06/2015