Irrigation & Water Resources Projects

Engineering Services

Bheema Lift Irrigation Project – Lift I envisages lifting of water from foreshore of Jurala project across Krishna River near Pancha Devalapadu in Atmakur Mandal to irrigate 2.30 Lack acres of parched lands in chronically drought affected upland areas of Mahbubnagar district. Budpur balancing reservoir with a capacity of 1.321 Tmcft is an offline reservoir enroute to Sangambanda reservoir with an infall regulator at Km 11.57 of the canal to irrigate 46,800 acres during Kharif under left and right canals in Makhtal and Atmakur Mandals. The total length of the earth dam is 6160 M with 99 M long weir.

Under package 20 of the above works, ConTec has designed surplus weir, head sluices and specification & preliminary drawings for various appurtenant works for M/s KNR - SLEC JV.

The Sankara Samudram tank is located near Kanayapalli village, Kottakota mandal, Mahaboobnagar district in Andhra Pradesh. Sankara Samudram Balancing Reservoir which is a part of Rajiv Lift Irrigation Scheme (Bhima Lift-II) envisages to convert the existing Shankara Samudram Tank as balancing reservoir by strengthening and raising the existing bund more than 100 year old and forming new bund on both flanks to revised FRL of +358.190m and constructing a new spillway, and head regulators on left and right side to feed the new and existing ayacut totaling about 57,000 acres of ayacut.

Under package 18 (lift II) of Bhima lift irrigation project ConTec has designed Spillway for M/s Sri Avantika & Sai Venkata (JV).

The Pranhita-Chevella Sujala Sravanthi lift irrigation scheme is proposed to be implemented over a span of 4 years at an investment of Rs. 38,500 crore. The scheme is contemplated to provide irrigation facilities for an ayacut of 1.64 million acre and drinking water enroute to Adilabad, Karimnagar, Nizamabad, Medak, Nalgonda, Rangareddy and Warangal districts.

The estimated completion time of the project being 48 months, will bring in 30 tmc drinking water to Hyderabad along with 16 tmc for industrial purposes from River Godavari.

The design engineering work under package V was carried out by ConTec for M/s Megha Engineering & Infrastructures Ltd. for the EPC group, M/s MEIL - MAYTAS - ABB - ANDRITZ (JV).

G.N.S.S. Project is intended to provide irrigation facilities to an extent of 3.25 Lakh acres (Rabi ID) in the districts of Cuddapah, Chittoor and Nellore besides providing drinking water facilities to villages and towns enroute the canal alignment. The scheme envisages drawl of 38 TMC surplus floodwaters of river Krishna from the foreshore of Srisailam Reservoir through Sri Sailam Right Branch Canal (S.R.B.C.) system upto Gorakallu Reservoir and thereafter through an independent flood flow canal to feed 9 Nos. of storage reservoirs enroute and utilize the stored water for irrigation during Rabi season

Under Package 89, GNSS Project, Phase I, ConTec has designed appurtenant works for Owk balancing reservoir for M/s G. Venkat Reddy and Company. Reservoir capacity is 4.31 TMCft.

It is one of the 09 reservoirs in series of reservoirs along the main canal. It is downstream of Uddimadugu Sagar reservoir (1.04 TMC) and upstream of Padmasagar reservoir (0.45 TMC). Its capacity is 3.0 TMC.

Design of Earth and Rockfill Dam for reservoir formation was carried by ConTec under Pkg No. 11/06 for GNSS Phase II Works for M/s PMR Infrastructure Pvt. Ltd.

Under Package 4/06, GNSS Project, Phase II, Uddimadugu Reservoir is formed. It is one of the 09 reservoirs in series of reservoirs along the main canal. It is downstream of Sarvaraja Sagar reservoir and upstream of Sri Balaji reservoir. Its capacity is 1.04 TMC.

ConTec carried out hydraulic design of Uddimadugu Surplus Weir for M/s Sree sai sreenivasa Constructions pvt. Ltd.

Under Package No. 13/06 of GNSS Project, Phase II, Venugopala Sagar Reservoir near Venugopala Puram (V) in Puttur (M) in Chittoor District is formed. It is one of the 09 reservoirs in series of reservoirs along the main canal. It is downstream of Srinivasa Sagar reservoir and upstream of Vepagunta reservoir.

The FRL level is kept at +172.500m and gross storage capacity is 2.683 TMCft and net storage capacity of 2.503 TMCft. ConTec has designed the earth bund for the reservoir for M/s Sabir Dam and Water Works Construction Company.

Cross Masonry and Cross Drainage works for main canal were carried out by ConTec under package 47 in phase- I for M/s G. Venkat Reddy and Company. The package extends from Km 0.00 to Km 16.50 from Owk Reservoir to Gandikota reservoir.

Gollavagu project is under construction near Bheemaram village, Jaipur mandal, Adilabad district. The scheme is intended to irrigate an ayacut of 9500 acres in Adilabad district and is taken up under Engineering Procurement Construction(EPC) system under Jalayagnam. The project comprises construction of earth bund, free over fall dam, head regulator, right main canal (lined) with cross masonry and cross drainage works with distributory system. The length of right main canal is 26.00 km which serves an ayacut of 9500 Acres. ConTec has designed various cross masonry and cross drainage works for a distributary for M/s PJR Project Constructions Limited.

The Handri Neeva Sujala Sravanthi (HNSS) scheme envisages to draw 40TMc of flood water of Krishna river from the foreshore of the Srisailam reservoir in 120 flood days during the period of 04 months from August to November to provide irrigation facilities in the 04 districts of Andhra Pradesh Kurnool, Ananthapur, Chittoor and Cuddapah in addition to providing drinking water facilities. The Phase- I civil works are divided into 14 nos. packages. Eight numbers of balancing reservoirs are proposed under the scheme to store water as per requirement. These reservoirs help in moderating the peak discharges in the canal systems and to store drinking water at the end of crop period for supply during the summer period. Pattikonda balancing reservoir is one of them.

Pattikonda Balancing Reservoir (HNSS Phase I, Package 29) The present project falls under package no. 29, which deals with Pattikonda balancing reservoir and distribution system to feed an ayacut of 32,200 Acres of Khariff I.D. ConTec has designed headworks for the reservoir which includes earth dam, surplus weir, left bank sluice, right bank sluice and other appurtenant works. The work was done by ConTec for M/s Rajanikant A. Patil for the EPC group, M/s R.M. Mohite & Co., Bhooratnam Construction Co., Pvt. Ltd (JV).

Design of some cross masonry and cross drainage structures across main canal from Km -3.420 to Km 20 were carried out by ConTec for M/s Rithwik Projects Limited for the EPC agency, M/s Back bone Projects.

Design of some cross masonry and cross drainage structures across Canal and HNSS Project Phase I from Km 155.000 to Km 176.425 (21.425 Kms) were carried out by ConTec for M/s Rithwik Projects Limited for the EPC agency, M/s Back bone Projects.

ConTec has designed various cross masonry and cross drainage works under main canal phase II, package 14 (Km 400.000 to Km 444.000) for M/s Sree sai sreenivasa Constructions pvt. Ltd. for the EPC agency, M/s Lanco Infra Tech Ltd.

ConTec has designed various cross masonry and cross drainage works under main canal phase II, package 18 (Km 463.000 to Km 490.000) for Sree sai sreenivasa Constructions pvt. Ltd. for the EPC agency, M/s Back Bone Projects Limited.

Indira Sagar (Polavaram) project is located on river Godavari near Ramayyapet village of Polavaram mandal of West Godavari district in Andhra Pradesh. The project is a multipurpose major terminal reservoir project on river Godavari for development of irrigation, hydropower and drinking water facilities to East Godavari, Vishakhapatnam, West Godavari and Krishna districts of Andhra Pradesh. The project will provide irrigation to 2.91 lakh hectares (CCA) and hydropower with installed capacity of 960 MW apart from 23.44 TMC (663.7 MCM) drinking and industrial water supply to Vishakhapatnam township and Steel plant and diversion of 80 TMC water to river Krishna. The ultimate irrigation potential of the project is 4.368 lakh Ha and annual power generation will be 2369.43 million units (mu). In addition, 540 villages will also be provided with drinking water facilities in the command area.

Under package 63, design of headworks including earth dam and 900M long tunnel was carried out by ConTec for M/s SMS Infrastructure Limited.

ConTec designed cross masonry & cross drainage works under Indira Sagar Right Main Canal from km 0.00 to 14.80 under package I for M/s Soma - Patel Engineering Limited JV.

ConTec designed Cross Masonry & Cross Drainage works under Indira Sagar Left Main Canal from km 51.60 to 69.145 under package III for M/s Maytas Infra Pvt. Ltd. for M/s Maytas Infra Pvt. Ltd. - NCC Limited (JV).

This is a medium Irrigation Project across Peddavagu a tributary to Pranahitha River in G-9 sub-basin. The site is located near Ada village, 13 km from Asifabad town in Asifabad Mandal. The proposed ayacut under this project is 24,500 Acres in Asifabad and Sirpur Mandals of Adilabad District. To cater to irrigation need around 65 KM long main canal and distributory system is being constructed. ConTec has designed various cross masonry and cross drainage works for left main canal, distributary no. 3 from KM 0.000 to KM 11.000 for M/s Navyuga - Transstroy JV.

Lingala canal takes-off from right flank of Chitravathi Balancing Reservoir to irrigate drought prone areas of Lingala Mandal of Kadapa District. Considering the necessity of providing the irrigation and drinking water to Lingala and adjoining mandals, this project was conceptualized. The canal runs for a total length of 55 Kms. The command area under this project is 25,000 acres. Along with this, construction of a link canal to Pulivendula Branch Canal and various appurtenant structures are also done.

ConTec has designed various cross masonry and cross drainage works during the stretch of 53.00 kms under the package of C.B.R. Right Canal (Lingala Canal) for M/s Maytas Infra Pvt. Ltd. for M/s Maytas - NCC JV.

Mid Manair reservoir is proposed across Manair river, Manwada village, Karimnagar district. The reservoir project envisages construction of a Spillway, Non Over Flow (NOF) dam and Earth dam to impound 25.873 TMC of water at FRL of El. 318.000 m and a maximum design flood discharge of 14395 Cumecs (5.08 Lakh Cusecs).

Design of the earth dam was taken up by ConTec for M/s JVS – Rathna - Sushee JV and approvals obtained from Central Designs Organisation, Irrigation & Command Area Development, Govt. of Andhra Pradesh. The 34.20m high earth dam was designed as a homogeneous section with “SC” type of soils for earthquake Zone – II.

Mid Pennar Reservoir Project (MPR) was constructed across river Pennar during 1964 to serve an ayacut of 1,33,825 Acres under left and right canals. MP South Canal was designed for 37.90 cumecs (1,338 cusecs) and runs for a length of 96.70 km. MP South Canal in addition to serving the above ayacut, has also to transport waters allocated under T.B.P.H.L.C. system. Water to be transported is : MP South canal direct ayacut : 4.32 TMC, Tadiparti Branch canal : 3.72 TMC, Mylavaram Reservoir assistance : 4.00 TMC & Pulivendula branch canal : 4.40 TMC, Totaling to 16.42 TMC.

Under the modernization of MP South Canal, Tumpera Deep Cut canal system has to carry an enhanced discharge of 26.91 cumecs (950 cusecs) from the present capacity of 15.57 cumecs (550 cusecs). This proposal will ensure transfer 4.00 TMC of water under assistance to Mylavaram reservoir project though MP South Canal in a period of 105 days as against the crop period of 120 days. The enhanced discharges through MP South canal are detailed here : Present carrying capacity : 37.90 cumecs, Assistance to Mylavaram Reservoir : 12.46 cumecs, Transmission losses : 1.32 cumecs, totaling to 51.68 cumecs.

ConTec has designed hydraulic particulars from Km 0.00 to Km 40.00 under package No. 43 and some of the cross masonry and cross drainage works for the package for M/s M. Venkateswara Rao for the EPC group, M/s ECI - BJCL

Tungabhadra project is a joint venture between the Government of Andhra Pradesh and Government of Karnataka to serve the drought prone district of Bellary and Raichur in Karnataka and Kurnool, Ananthapur and Kadapa districts in Andhra Pradesh by providing drinking water and irrigation requirements to the tune of about 12.1 lakh acres.

The scope of work under High Level Main Canal (HLMC) Package - 4 includes modernisation of canal from Km 144.000 to Km 162.000 and distributary System for stabilization of localized ayacut of 5630 Acres under the T.B.P.H.L.C. system including Cross Masonry and Cross Drainage works, Kanekal Tank and Distributory System.

ConTec prepared hydraulic particulars of canal for the above works for M/s Sai sudhir infrastructures limited for the EPC group, M/s Sai Sudhir - Ratna Saisudhir JV.

The Musurumilli Reservoir scheme proposed across Seethapallivagu stream, a tributary to river Godavari is located near Musurumilli village Rampachodavaram Mandal in East Godavari District. The scheme envisages irrigation benefits to an extent of 9164 Ha during Khariff season and 4797 Ha of pulses and paddy during Rabi season in the tribal areas of Devipatnam, Rampachodavaram and Gangavaram Mandals and upland areas of Korukonda and Gonavaram Mandals of East Godavari district, in addition to the drinking water facility for 23 villages enroute the canal.

Detailed Engineering of the project was taken up by ConTec for M/s Srinivasa Civil Works (P) Ltd. and approvals obtained from Central Designs Organisation, Irrigation & Command Area Development, Govt. of Andhra Pradesh. The scope of project includes construction of a 13 m high gated ogee spillway to pass a flood discharge of 3620 Cumecs, formation of a reservoir and head works including 33m high embankment earth dam, concrete non over flow section, head sluice, etc. The project is in final stages of completion.

A medium irrigation project across Peddavagu a tributary of Godavari river in G-9 sub basin is proposed near Neelwai village, situated at 69.000 Km from Mancherial town in Adilabad district. The Project aims at a total gross utilization of 1.855 TMC of water to irrigate an ayacut of 13000 Ac. wet and irrigated dry crops in Khariff season. The project comprises construction of earth bund, free over fall dam, head regulator, right main canal (lined) with cross masonry and cross drainage works, left main canal (lined) with cross masonry and cross drainage works, distributaries system with field channels.

The main canals run for a length of 15 Km and proposed on left & right flanks. The scheme envisages construction of HC weir on left flank of gorge for 340 M from Ch 38 to 55. The maximum height of the earth bund is 13.60 m in gorge portion of Peddavagu River. The project is proposed to be completed within 3 years from the year of commencement. The completion of the project will result is net increased agricultural production of Rs. 2015.73 Lakhs per year. The scheme is economically viable and benefits, the people of backward areas in Adilabad District and will help in promoting the general prosperity of the region.

ConTec has designed various cross masonry and cross drainage works for left and right flank canal for M/s M.V.R.-Soham JV

The Pampa Reservoir Project was constructed across the Pampa River. The Project is located near the Annavaram village, Sankavaram Mandal, East Godavari District to irrigate a total ayacut of 12,005 acres in the district of East Godavari and it also provides drinking water to 10 villages in the Thondangi mandal in East Godavari District. The Project utilizes 1.50 TMC of the available water and the Reservoir Storage Capacity is 0.510 TMC (gross) and 0.50 TMC (net). Modernization of the scheme along with rehabilitation and stabilization was taken up in early 2000.

ConTec has carried out design service for improving storage capacity of the reservoir including improvements to the main earth dam, subsidiary earth bund and spillway for M/s Pioneer Builders Ltd.

A medium irrigation project is constructed across Peddavagu, a tributary of Pranahita River in G-9 sub basin of the Godavari Basin. The site is located near Jagannathapur village, Dehagaon mandal, Adilabad district and is about 12 KM from Sirpur Kagaz Nagar town and Mandal head quarters. The Project is providing irrigation facility to an extent of 6073 ha (15000 acres) benefiting 15 villages in Dehagaon Mandal in Adilabad District. The demand under irrigation is 26.774 MCM (0.9455 TMC) and Drinking Water Supply is 0.180 MCM (0.0063 TMC). ConTec has designed various cross masonry and cross drainage works under right flank main canal from KM 0.000 to KM 29.000 for M/s Integral Construction Company India Pvt. Ltd.

Singareni Collieries Company Limited contemplated acquiring additional area and expansion of Ramagundam Opencast area. Bokkala vagu conveying the surplus discharges of Gundaram, Begampet tanks and its self catchment into Godavari River flows through the Ramagundam Opencast area, raising serious flood threats and safety concerns to the miners. Hence, it was proposed to divert the Bokkalavagu outside the proposed Opencast area without affecting the lower riparian rights, SRSP canal network and the configuration of Bokkalavagu.

ConTec’s objective is to formulate the most suitable project proposal and put forward a Feasibility Report encompassing all the issues to enable smooth implementation of the diversion project.

The Detailed Project Report (DPR) is prepared for developing a 320 Mw run -of-river hydroelectric power project by constructing a gravity dam across River Godavari at Dummugudem village, Khammam district in Andhra Pradesh for APGENCO. The Detailed Project Report (DPR) is prepared by ConTec in line with the Guidelines laid down by Central Electricity Authority (CEA) for formulation of Detailed Project Report (DPR)s for Hydro Electric Schemes, in compliance with the requirement of Section 8 of the Electricity Act, 2003.

The 2500 Cr. project envisages construction of a gated spillway in the deepest course of River Godavari, sandwiched between concrete overflow sections (auxiliary spillways), with a bridge proposed to connect with the earth and rock fill dam on both sides to pass a design discharge of about 1,00,000 cumecs. The power house is located within the concrete non overflow section on the right bank immediately after the right concrete overflow section. The work is done for Andhra Pradesh Power Generation Corporation (APGENCO).

The objective of the Detailed Project Report (DPR) is prepared for developing a run -of-river hydroelectric power project by utilizing the head created by construction of a gravity dam across river Godavari at Kantanapally village, Warangal district in Andhra Pradesh for APGENCO. The study aims at providing the best and most suitable option and specify the design features for optimum overall river basin development of the river for power generation.

The Detailed Project Report (DPR) is being prepared by ConTec in line with the Guidelines laid down by Central Electricity Authority (CEA) for formulation of Detailed Project Report (DPR)s for Hydro Electric Schemes, in compliance with the requirement of Section 8 of the Electricity Act, 2003. The work is done for Andhra Pradesh Power Generation Corporation (APGENCO).

Godavari River is a major waterway in central India. The upper waters of the Godavari are scarcely utilized for irrigation, but the entire delta has been turned into a garden of perennial crops by means of the anicut at Dowalaiswaram, constructed by Sir Arthur Cotton 145 years ago.

The river enters the Andhra Pradesh near Bhadrachalam and flows touching the towns such as Godhavarikhani, Rajahmundry, Kovvur, Tallapudi and Narsapur in a southeast direction until it empties into the Bay of Bengal through two mouths. Whenever the discharge in river Godavari exceeds 28,320 Cumecs the water level in the river raises above the adjoining lands in the delta, affecting crop in 4.0 lakh hectares of rich cultivable land as also affecting the livelihood of 3.5 million people. Based on the experience of past floods, it was proposed to raise the flood banks by 2.00 m over the observed maximum flood level (OMFL) of 1986 flood and widen the banks to the standards for the length of 405.50 Kms.

As flood banks got standardized, construction of outfall sluices at various locations was found necessary to drain out the rain water on the landside so as to prevent water logging.

ConTec designed various out sluices under Package 74 for M/s Coastal Projects Private Limited which worked for M/s Manisha - INDU (JV).

Detailed Project Report (DPR) was prepared by ConTec on behalf of Irrigation and Command Area Development Department, Govt. of AP for standardization of Vamsadhara and Nagavali flood banks in Vizianagaram and Srikakulam districts by raising and widening of the existing flood banks including protection works and retrofitting of existing structures. The project costing Rs. 310 Crores was approved by Central Water Commission and the project and the project was executed by I&CAD, Andhra Pradesh. This work was done for Irrigation & Command Area Development Department (I&CAD), Andhra Pradesh.

ConTec has designed various Outfall Sluices under Cross Masonry and Cross Drainage works for M/s PJR Project Constructions Limited.

The Thadipudi Lift Irrigation Scheme (TLIS) in West Godavari district is contemplated to change the parched and water-starved upland areas of the two districts into green havens. The TLIS, envisaging lifting of about 6.51 TMCft of water from the Godavari and would ensure assured irrigation water to 1.37 lakh acres in nine Mandals. The Tadipudi Main Canal is crossing the river Yerrakaluva at chainage Km 44.195. The main canal is around 80.45 km long. The work of designing the aqueduct and obtaining approval from Central Designs Organisation, Irrigation & Command Area Development, Govt. of Andhra Pradesh was carried out by ConTec for the EPC agency, M/s Maytas Infra Pvt. Ltd

The 280m long aqueduct (20m x 14 spans) is designed to pass a flood of 4375 Cumecs discharge under full submergence. As the aqueduct is to accommodate a single lane bridge for inspection track, a R.C.C box with two vents of size 3.5 M X 3.975 M is proposed with a single lane bridge of carriage way of 4.25M over the box.

ConTec has designed various cross masonry and cross drainage works under package OC 38 of TLIS for the EPC agency, M/s Maytas Infra Pvt. Ltd.

Tarakarama Thirtha Sagaram Reservoir Project envisages stabilization of existing wet ayacut of 3307 Ha (8172 Ac) under Kumili channel system, and to create irrigation facilities (ID) for 6693 Ha (16538 Ac) of new areas in Vizianagaram. Besides irrigation, the scheme provides drinking water supply to enroute villages.This project involved construction of a Barrage across river Champavathi near Kotagandredu village to dispose off a maximum flood discharge of 70,000 Cusecs at FRL +42.50 M. A head sluice is proposed at right angle with the axis of the barrage to divert a discharge of 1205 Cusecs through a diversion canal into an inland reservoir.

The inland reservoir at Kumili is developed to store the diverted waters from Champavathi river by improving the existing big tank of Kumili village to store 1.883 TMC of water at FRL, including a dead storage of 0.445 TMC. The FRL of the reservoir is +38.00 M and the TBL is fixed at +42.00 M. The Right Main Canal and Left Main Canal are being constructed to cover the distributory system to irrigate existing wet ayacut of 3307 Ha (8172 Ac) under Kumili channel system, and to create irrigation facilities (ID) for 6693 Ha (16538 Ac) of new areas in Vizianagaram. ConTec has prepared design for cross masonry & cross drainage works on diversion channel for the Tarakarama Thirtha Sagaram Reservoir Project for the EPC agency, M/s Srinivasa construction Pvt. Ltd.

Thotapalli Barrage project is a major Irrigation project across Nagavali river near Parvathipuram in Vizianagaram District to create irrigation facilities to 1,20,000 acres Irrigated Dry (ID) besides stabilization of 60,000 acres of existing ayacut under Thotapalli regulator and open head channel system in Vizianagaram and Srikakulam districts. In addition to irrigation, the scheme provides drinking water supply to enroute villages and towns.

Major Structures in Thotapalli Barrage project

Swarnamukhi Aqueduct in Thotapalli barrage project The Right Main Canal crosses the River Suvarnamukhi and River Vegavathi along its alignment and aqueducts are proposed at the crossings.

Vegavathi Aqueduct in Thotapalli barrage project The Right Main Canal crosses the River Suvarnamukhi and River Vegavathi along its alignment and aqueducts are proposed at the crossings.

The work of designing the aqueduct and obtaining approvals from Central Designs Organisation, Irrigation & Command Area Development, Govt. of Andhra Pradesh was carried out by ConTec for the EPC agency, M/s ITD Cementation India Limited.

ConTec has carried out design service for improving storage capacity of the reservoir including improvements to the main earth dam, subsidiary earth bund and spillway for M/s Pioneer Builders Ltd.

Package (I) from km 0.00 to km 52.45 in Thotapalli Barrage project

Various Cross Masonry and Cross Drainage works for Main Canal under Phase - I for EPC package (I) from km 0.00 to km 52.45 has been designed by ConTec for the EPC agency, M/s ITD Cementation India Limited.

Package (II) from km 52.45 to km 107.00 in Thotapalli Barrage project

Various Cross Masonry and Cross Drainage works for Main Canal under Phase - I for EPC package (II) from km 52.45 to km 107.00 has been designed by ConTec for M/s Maytas Infra Pvt. Ltd. for the EPC group, M/s Maytas - NCC (JV).

Veligonda Project envisages to provide irrigational facilities to 4.38 Lakh Acres of I.D crops and drinking water to 15 Lakh people in 29 Mandals of fluorine and drought affected upland areas in Prakasam, Nellore and Cuddapah Districts by diverting 43.5 TMC of floodwater of Krishna from foreshore of Srisailam Reservoir near Kollamvagu and proposed to store in Nallamalasagar Reservoir. The major work involves construction of 18.80 km of tunnel and flood flow canal of 21.70 kms.

ConTec has designed ribs for Veligonda Tunnel 1 and Veligonda Tunnel 2 with 300 x 140mm RS Joists & 152 x 152 mm RS Joists respectively for M/s Coastal Projects Private Limited.

In view of the recurring drought conditions and shortage of drinking water in several villages in Bangarpet taluka and towns like Kolar, Bangarpet, Malur; it is proposed to construct a storage reservoir near Yargol village about 24 Kms south of Bangarpet town. The proposed reservoir is across Markendeya river. Yargol project will cater to the drinking water needs of 45 en-route villages and 3 towns namely Kolar, Bangarpet and Malur towns. The water requirement of these towns and villages is about 500 mcft and the dam is proposed to be constructed with gross capacity of 500 Mcft

ConTec has prepared the detailed design and drawings for Spillway & Non- Over Flow Gravity dams along with all appurtenant works for Yargol reservoir for M/s Ramky Infrastructure Limited for Karnataka Water Supply & Drainage Board, Kolar (KUWSDB).

The government of Telangana contemplated to augment the storage capacity of the Dummugudem Anicut across River Godavari at Dummugudem village, Khammam district in Telangana State by raising the crest level by one meter from the present level at El. +49.690 m to El. +50.690 m. The scope of the Detailed Project Report included conducting topographic survey and geotechnical investigations, study of upstream submergence, checking the suitability and stability along with hydraulic and structural design for raising of crest level of the existing Anicut, cost estimate etc. The detailed project report was prepared in line with the guidelines laid down by Central Water Commission.

Dravyavati river was an active river flowing through Jaipur city, which over the time, turned in to a sewage carrying Amanishah Nallah. M/s Tata Projects Limited has taken up the river rejuvenation project for Jaipur Development Authority to transform the neglected and sewage carrying Amanishah Nallah back into active Dravyavati River. The channel will serve the dual role of water front during lean flows and flood carrying channel during monsoon season. ConTec has been awarded with the work for finalisation of hydrology, design and detailed engineering (hydraulic & structural design) of channel apart from obtaining approval from the concerned authorities.

Hydrology and substantial part of detailed engineering of channel along with channel transition / connection with existing structures has been completed and approvals have been obtained from IIT Chennai, Jaipur Development Authority and their consultant PDCOR Limited.

With the broad objective of enhancing the livelihood of beneficiaries in the project target area, government of Andhra Pradesh has taken up Andhra Pradesh Irrigation & Livelihood Improvement Programme (APILIP-II) with the assistance of Japan International Cooperation Agency (JICA).

ConTec was awarded with the contract for preparation of detailed project reports for modernisation of one major and three medium irrigation projects for stabilisation of 73,319 acres of CCA spread over three districts pertaining to North Andhra Region i.e., Srikakulam, Vizianagaram and Visakhapatnam. The task was successfully completed by ConTec and necessary clearances were obtained from the Central Water Commission (CWC) prior to the final approval of the project in the 135th meeting of the advisory committee of MoWR, RD & GR.

Apart from the preparation of DPR’s for modernisation of eight irrigation projects assigned, ConTec was instrumental in obtaining the necessary approvals from the various directorates of the CWC for one major irrigation and nineteen medium irrigation projects in total.

With the vision to extend irrigation coverage to the entire farm land; Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) has been formulated with the focus on end to end solution for improving water use efficiency, source creation, distribution, management, field application and extension activities.

The task of preparation of GIS based District Irrigation Plan’s (DIP) for the thirteen Districts of Andhra Pradesh along with State Irrigation Plan (SIP) was assigned to ConTec. The task was successfully completed by ConTec and the DIPs along with the State Irrigation Plan of the state of Andhra Pradesh for an estimated value of Rs. 55,246 Crs. was approved by the State Level Sanctioning Committee (SLSC).

ConTec has been entrusted with the job for preparation of State State Specific Action Plan (SSAP) for the State of Andhra Pradesh with the objective of creating a comprehensive water data base in public domain.

With the broad objective of enhancing the livelihood of beneficiaries in the project target area, government of Andhra Pradesh has taken up Andhra Pradesh Irrigation & Livelihood Improvement Programme (APILIP-II) with the assistance of Japan International Cooperation Agency (JICA). ConTec was awarded with the contract for preparation of detailed project reports for modernisation of one major and seven minor irrigation projects for stabilisation of 43051 Ha. of CCA spread over seven districts of Andhra Pradesh.

The task was successfully completed by ConTec and necessary clearances were obtained from the Central Water Commission (CWC) prior to the final approval of the project in the 135th meeting of the advisory committee of MoWR, RD & GR. Apart from the preparation of DPR’s for modernisation of eight irrigation projects assigned, ConTec was instrumental in obtaining the necessary approvals from the various directorates of the CWC for one major irrigation and nineteen medium irrigation projects in total.

The Palamuru Rangareddy Lift Irrigation Scheme (PRLIS) project envisages to irrigate an ayacut of 10 lakh acres in drought prone upland areas of Mahbubnagar, Rangareddy and Nalgonda districts, to meet drinking water requirement to the enroute villages and Hyderabad city as also to cater to the industrial use. A total of six reservoirs are proposed as part of the project at Narlapur, Edula, Vattem, Karivena, Uddandapur and Hemasamudram. The 8.51 TMC capacity Anjanagiri reservoir proposed at Narlapur village is the first stage reservoir with a maximum bund height of 57.575m.

The earth bund formation was planned and designed with the soil excavated from the foreshore of the proposed reservoir. However, during the execution of the earth bund it was observed that the top layer of lose soils with the designed properties were in shortage and the properties of the now available borrowed soils (need to be extracted by blasting) differed from the properties of the casing soils originally proposed during design stage.

M/s ConTec DES Pvt. Ltd. was approached and assigned with the task of redesigning the 57.5 m high earth dam section with the available soil material. The earth dam was designed and the stability was checked using “Slide” software of “Rocscience”. The earth dam is under construction after obtaining approvals from CDO, Telangana.

High Level Canal, Stage II, Phase-II, B.R.R. Vamsadhara Project is located in Srikakulam District of Andhra Pradesh. ConTec has undertaken the work of S&L Operations estimate for preparation of Detailed Project Report on the Proposal of Proposed High Level Canal taking off from Hiramandalam Reservoir and crossing Vamsadhara River to serve the L/s ayacut in Kaviti Kanchili, Somapeta, Mandasa and Icchapuram Mandals of Srikakulam District.

Vissannapeta Sub-Lift Irrigation Scheme and Chanubanda Sub-Lift Irrigation Scheme is located in Vissannapeta Mandal of Krishna District, Andhra Pradesh. ConTec has undertaken the work of Preliminary Survey estimate for conducting Detailed Topographical Survey, Preparation of Design, Drawing, Estimate of all Civil Components, Surge Pool, Pumphouse, Cistern, Pressure Main, Delivery Cistern, Canals And Distributory system and preparation of detailed Project Report for Irrigation and Additional ayacut of 50,000 acres (Vissannapeta Sub-Lift Irrigation Scheme 35000 Acres and Chanubanda Sub-Lift Irrigation scheme 15000 acres)

Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) was launched for enhancing physical access of water on farm and expanding cultivable area under assured irrigation, improve on-farm water use efficiency, introducing sustainable water conservation practices. Under this scheme, 99 ongoing AIBP funded irrigation projects have been identified for prioritised implementation in mission mode along with their Command Area Development (CAD) works. The Cabinet Committee on Economic Affairs has approved that CAD works of 99 prioritised AIBP projects are to be funded through NABARD borrowing under long term irrigation fund under existing CADWM programme. Eight irrigation projects of Andhra Pradesh were listed under prioritised ongoing AIBP funded irrigation projects. ConTec was entrusted with the work for preparation of DPR for three projects. Geospatial survey for a Command Area of over 80,000 acres was conducted by utilising a combination of Satellite DEM and UAV Photogrammetric survey, for preparation of DPR for undertaking CADWM works of KOR Gundlakamma reservoir project.

Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) was launched for enhancing physical access of water on farm and expanding cultivable area under assured irrigation, improve on-farm water use efficiency, introducing sustainable water conservation practices. Under this scheme, 99 ongoing AIBP funded irrigation projects have been identified for prioritised implementation in mission mode along with their Command Area Development (CAD) works. The Cabinet Committee on Economic Affairs has approved that CAD works of 99 prioritised AIBP projects are to be funded through NABARD borrowing under long term irrigation fund under existing CADWM programme. Eight irrigation projects of Andhra Pradesh were listed under prioritised ongoing AIBP funded irrigation projects. ConTec was entrusted with the work for preparation of DPR for three projects. Geospatial survey for a Command Area of over 25000 acres was conducted by utilising a combination of Satellite DEM and UAV Photogrammetric survey, for preparation of DPR for undertaking CADWM works of SKK Yerrakaluva reservoir project.

ConTec prepared the detailed project report and detailed engineering for Dummugudem multipurpose project for a value of by construction of a Barrage across river Godavari, 200 m downstream of existing anicut for the I&CAD department of Telangana. Administrative approval for an amount of Rs. 3481 Crs. was granted by Telangana Government and the project is being grounded. Scope of work included Geospatial survey by UAV Photogrammetry, detailed engineering & preparation of DPR including: 1. Construction of Barrage 2. Hydropower Generation & Navigation. 3. Study of Regional geology & topography. 4. River hydrology & design flood. 5. River basin Development. 6. Design engineering & project facilities (Irrigation, Hydropower & Navigation). 7. Power potential & installed capacity. 8. Project implementation methodology. 9. Techno Economic Viability.

Taraka Rama Teertha Sagaram Reservoir Project is located in Vizianagaram District of Andhra Pradesh. ConTec has undertaken the work of Balance investigation and preparation of HPs including the designs and drawings of structures, estimates of RMC, LMC and distributory system of TRTS Project, Vizianagaram District.

Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) was launched for enhancing physical access of water on farm and expanding cultivable area under assured irrigation, improve on-farm water use efficiency, introducing sustainable water conservation practices. Under this scheme, 99 ongoing AIBP funded irrigation projects have been identified for prioritised implementation in mission mode along with their Command Area Development (CAD) works.

The Cabinet Committee on Economic Affairs has approved that CAD works of 99 prioritised AIBP projects are to be funded through NABARD borrowing under long term irrigation fund under existing CADWM program. Eight irrigation projects of Andhra Pradesh were listed under prioritised ongoing AIBP funded irrigation projects.

ConTec was entrusted with the work for preparation of DPR for three projects. Geospatial survey for a Command Area of over 1,20,000 acres was conducted by utilising Satellite DEM and other conventional method of survey including equipment’s like DGPS and Total Station. Trimble catalyst and other handheld GPS devices were used for Geo-Tagging. Preparation of DPR for undertaking CADWM works of SGL Thotapally barrage project is under progress.

The Anam Sanjeeva Reddy Somasila High Level Lift Canal project Phase-II has been proposed to irrigate about 46453 Acres of Ayacut and to provide drinking water facilities from the Somasila Project in Various villages of four (4) Mandals namely Marripadu, Udayagiri, Vinjamur and Duttalur of Atmakur and Udayagiri Assembly Constituencies of SPSR Nellore District by Constructing Three Balancing Reservoirs, Pump House, Pressure Mains and Gravity Canal etc.

The Scope of the work includes, a) Conducting Preliminary investigation, detailed investigation, preparation of Designs, Drawings and estimation for Pump houses, Delivery Cistern, Pressure Main, Service roads, Diversion roads, Fixing of alignment of Gravity Canal, CM&CD works on Gravity Canal & Pressure mains, including Electro Mechanical and Hydro Mechanical works etc., including preparation of LP schedules for Land Acquisition and getting approvals for all the Designs, Drawings, HPs and L.P. Schedules from the competent authority. b) Gravity Canal-6 along with C.M & C.D works for feeding water to Gundemadakela Balancing Reservoir. c) Pressure Main-6 for carrying discharge of 8.20 cumecs from pumping station for feeding water to Kampasamudram Balancing Reservoir with static head of 38.50 Mts d) One pumping Station in the foreshore of Pegellapadu Balancing reservoir and switch yard: Pump House with protection arrangements as per approved drawings to provide suitable Numbers of Pumps and Motors to discharge 8.2 cumecs and other electrical installations as per requirement. e) Approach channel in the foreshore of Pegellapadu balancing reservoir with a carrying capacity of 1.5 times the Design capacity of pumps. f) Construction of One Delivery Cistern

This project Beautification, Conservation and Lake Front Management works for Thirteen Lakes was undertaken for Lake conservation cell, Bhopal Municipal Corporation, Bhopal, Madhya Pradesh. Apart from design and engineering works, the scope of the work was including survey and investigation works. Topographical survey was conducted using Auto levels, Total Station and DGPS. Various investigations for finding the present condition of water in the lake was undertaken. A comprehensive report incorporating various aspects for conservation of water and beautification of lake was submitted to the department.

Geospatial Survey

The Detailed Project Report (DPR) is prepared for developing a 320 Mw run -of-river hydroelectric power project by constructing a gravity dam across River Godavari at Dummugudem village, Khammam district in Andhra Pradesh for APGENCO. The Detailed Project Report (DPR) is prepared by ConTec in line with the Guidelines laid down by Central Electricity Authority (CEA) and CWC (Central Water Commission) for formulation of Detailed Project Report (DPR)s for Hydro Electric Schemes, in compliance with the requirement of Section 8 of the Electricity Act, 2003.

The 2500 Cr. project envisages construction of a gated spillway in the deepest course of River Godavari, sandwiched between concrete overflow sections (auxiliary spillways), with a bridge proposed to connect with the earth and rock fill dam on both sides to pass a design discharge of about 1,00,000 cumecs. The power house is located within the concrete non overflow section on the right bank immediately after the right concrete overflow section. The work is done for Andhra Pradesh Power Generation Corporation (APGENCO) in Co-ordination with Water Resources Department, Andhra Pradesh.

Godavari River is a major waterway in central India. The upper waters of the Godavari are scarcely utilized for irrigation, but the entire delta has been turned into a garden of perennial crops by means of the anicut at Dowalaiswaram, constructed by Sir Arthur Cotton 145 years ago.

The river enters the Andhra Pradesh near Bhadrachalam and flows touching the towns such as Godhavarikhani, Rajahmundry, Kovvur, Tallapudi and Narsapur in a southeast direction until it empties into the Bay of Bengal through two mouths. Whenever the discharge in river Godavari exceeds 28,320 Cumecs the water level in the river raises above the adjoining lands in the delta, affecting crop in 4.0 lakh hectares of rich cultivable land as also affecting the livelihood of 3.5 million people. Based on the experience of past floods, it was proposed to raise the flood banks by 2.00 m over the observed maximum flood level (OMFL) of 1986 flood and widen the banks to the standards for the length of 405.50 Kms.

The hydrographic and topographic survey works were carried out by ConTec for APGENCO, for construction of three-dimensional model for studying the hydraulic performance of the existing spillway being taken up at AP Engineering Research Laboratories.

Bathymetric Survey in the reservoir portion using water sonar sensors, GPS etc. was done. Work included bathymetric survey for 330 Ha of reservoir portion, establishment of Bench mark level at site by carrying levels from the nearest GTS bench mark adopting closed circuit levelling and other ancillary works.

The hydrographic and topographic survey works were carried out by ConTec for APGENCO, for construction of three-dimensional model for studying the hydraulic performance of the existing spillway being taken up at AP Engineering Research Laboratories.

Bathymetric Survey in the reservoir portion using water sonar sensors, GPS etc. was done. Work included bathymetric survey for 250 Ha. of reservoir portion, establishment of Bench mark level at site by carrying levels from the nearest GTS bench mark adopting closed circuit levelling and other ancillary works.

With the broad objective of enhancing the livelihood of beneficiaries in the project target area, government of Andhra Pradesh has taken up Andhra Pradesh Irrigation & Livelihood Improvement Programme (APILIP-II) with the assistance of Japan International Cooperation Agency (JICA).

ConTec was awarded with the contract for preparation of detailed project reports for modernisation of one major and seven minor irrigation projects for stabilisation of 43051 Ha. of CCA spread over seven districts of Andhra Pradesh. The task was successfully completed by ConTec and necessary clearances were obtained from the Central Water Commission (CWC) prior to the final approval of the project in the 135th meeting of the advisory committee of MoWR, RD & GR.

Apart from the preparation of DPR’s for modernisation of eight irrigation projects assigned, ConTec was instrumental in obtaining the necessary approvals from the various directorates of the CWC for one major irrigation and nineteen medium irrigation projects in total.

This project of linking of Nagavali River with Champavathi River and Improvements to Gadigedda Reservoir is located in Vizianagaram District, Andhra Pradesh. Apart from design and engineering works, the scope of the work was including survey and investigation works. Topographical survey was conducted using Auto levels, Total Station and DGPS. Soil investigation and geotechnical investigation was also done as a part of the investigation work.

This project Bonthu Lift Irrigation Scheme is located in Srikakulam District of Andhra Pradesh. Apart from design and engineering works, the scope of the work was including survey and investigation works. Topographical survey was conducted using Auto levels, Total Station and DGPS.

This project Beautification, Conservation and Lake Front Management works for Thirteen Lakes was undertaken for Lake conservation cell, Bhopal Municipal Corporation, Bhopal, Madhya Pradesh. Apart from design and engineering works, the scope of the work was including survey and investigation works. Topographical survey was conducted using Auto levels, Total Station and DGPS. Various investigations for finding the present condition of water in the lake was undertaken. A comprehensive report incorporating various aspects for conservation of water and beautification of lake was submitted to the department.

High Level Canal, Stage II, Phase-II, B.R.R. Vamsadhara Project is located in Srikakulam District of Andhra Pradesh. ConTec has undertaken the work of S&L Operations estimate for preparation of Detailed Project Report on the Proposal of Proposed High Level Canal taking off from Hiramandalam Reservoir and crossing Vamsadhara River to serve the L/s ayacut in Kaviti Kanchili, Somapeta, Mandasa and Icchapuram Mandals of Srikakulam District.

Topographical survey of approximately 1,20,000 acres was undertaken along with survey for main canal & branch canal alignment of more than 150 Kms was completed. Geotechnical works including bore hole drilling of more than 1000 meters, soil testing and trail pit excavation was undertaken as a part of the scope of the work.

Vissannapeta Sub-Lift Irrigation Scheme and Chanubanda Sub-Lift Irrigation Scheme is located in Vissannapeta Mandal of Krishna District, Andhra Pradesh. ConTec has undertaken the work of Preliminary Survey estimate for conducting Detailed Topographical Survey, Preparation of Design, Drawing, Estimate of all Civil Components, Surge Pool, Pumphouse, Cistern, Pressure Main, Delivery Cistern, Canals And Distributory system and preparation of detailed Project Report for Irrigation and Additional ayacut of 50,000 acres (Vissannapeta Sub-Lift Irrigation Scheme 35000 Acres and Chanubanda Sub-Lift Irrigation scheme 15000 acres)

Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) was launched for enhancing physical access of water on farm and expanding cultivable area under assured irrigation, improve on-farm water use efficiency, introducing sustainable water conservation practices. Under this scheme, 99 ongoing AIBP funded irrigation projects have been identified for prioritised implementation in mission mode along with their Command Area Development (CAD) works. The Cabinet Committee on Economic Affairs has approved that CAD works of 99 prioritised AIBP projects are to be funded through NABARD borrowing under long term irrigation fund under existing CADWM programme. Eight irrigation projects of Andhra Pradesh were listed under prioritised ongoing AIBP funded irrigation projects. ConTec was entrusted with the work for preparation of DPR for three projects. Geospatial survey for a Command Area of over 80,000 acres was conducted by utilising a combination of Satellite DEM and UAV Photogrammetric survey, for preparation of DPR for undertaking CADWM works of KOR Gundlakamma reservoir project.

Aerial Geospatial survey by flying UAV was undertaken. Approximately 400 Kms circumference of the Tungbhadra Dam was captured using Photogrammetry survey for identification of features in the periphery of the dam to classify the features and water connection on the boundary of dam.

Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) was launched for enhancing physical access of water on farm and expanding cultivable area under assured irrigation, improve on-farm water use efficiency, introducing sustainable water conservation practices. Under this scheme, 99 ongoing AIBP funded irrigation projects have been identified for prioritised implementation in mission mode along with their Command Area Development (CAD) works. The Cabinet Committee on Economic Affairs has approved that CAD works of 99 prioritised AIBP projects are to be funded through NABARD borrowing under long term irrigation fund under existing CADWM programme. Eight irrigation projects of Andhra Pradesh were listed under prioritised ongoing AIBP funded irrigation projects. ConTec was entrusted with the work for preparation of DPR for three projects. Geospatial survey for a Command Area of over 25000 acres was conducted by utilising a combination of Satellite DEM and UAV Photogrammetric survey, for preparation of DPR for undertaking CADWM works of SKK Yerrakaluva reservoir project.

ConTec prepared the detailed project report and detailed engineering for Dummugudem multipurpose project for a value of by construction of a Barrage across river Godavari, 200 m downstream of existing anicut for the I&CAD department of Telangana. Administrative approval for an amount of Rs. 3481 Crs. was granted by Telangana Government and the project is being grounded. Scope of work included Geospatial survey by UAV Photogrammetry, detailed engineering & preparation of DPR including: 1. Construction of Barrage 2. Hydropower Generation & Navigation. 3. Study of Regional geology & topography. 4. River hydrology & design flood. 5. River basin Development. 6. Design engineering & project facilities (Irrigation, Hydropower & Navigation). 7. Power potential & installed capacity. 8. Project implementation methodology. 9. Techno Economic Viability.

Taraka Rama Teertha Sagaram Reservoir Project is located in Vizianagaram District of Andhra Pradesh. ConTec has undertaken the work of Balance investigation and preparation of HPs including the designs and drawings of structures, estimates of RMC, LMC and distributory system of TRTS Project, Vizianagaram District.

Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) was launched for enhancing physical access of water on farm and expanding cultivable area under assured irrigation, improve on-farm water use efficiency, introducing sustainable water conservation practices. Under this scheme, 99 ongoing AIBP funded irrigation projects have been identified for prioritised implementation in mission mode along with their Command Area Development (CAD) works.

The Cabinet Committee on Economic Affairs has approved that CAD works of 99 prioritised AIBP projects are to be funded through NABARD borrowing under long term irrigation fund under existing CADWM program. Eight irrigation projects of Andhra Pradesh were listed under prioritised ongoing AIBP funded irrigation projects.

ConTec was entrusted with the work for preparation of DPR for three projects. Geospatial survey for a Command Area of over 1,20,000 acres was conducted by utilising Satellite DEM and other conventional method of survey including equipment’s like DGPS and Total Station. Trimble catalyst and other handheld GPS devices were used for Geo-Tagging. Preparation of DPR for undertaking CADWM works of SGL Thotapally barrage project is under progress.

The Anam Sanjeeva Reddy Somasila High Level Lift Canal project Phase-II has been proposed to irrigate about 46453 Acres of Ayacut and to provide drinking water facilities from the Somasila Project in Various villages of four (4) Mandals namely Marripadu, Udayagiri, Vinjamur and Duttalur of Atmakur and Udayagiri Assembly Constituencies of SPSR Nellore District by Constructing Three Balancing Reservoirs, Pump House, Pressure Mains and Gravity Canal etc.

The Scope of the work includes, a) Conducting Preliminary investigation, detailed investigation, preparation of Designs, Drawings and estimation for Pump houses, Delivery Cistern, Pressure Main, Service roads, Diversion roads, Fixing of alignment of Gravity Canal, CM&CD works on Gravity Canal & Pressure mains, including Electro Mechanical and Hydro Mechanical works etc., including preparation of LP schedules for Land Acquisition and getting approvals for all the Designs, Drawings, HPs and L.P. Schedules from the competent authority. b) Gravity Canal-6 along with C.M & C.D works for feeding water to Gundemadakela Balancing Reservoir. c) Pressure Main-6 for carrying discharge of 8.20 cumecs from pumping station for feeding water to Kampasamudram Balancing Reservoir with static head of 38.50 Mts d) One pumping Station in the foreshore of Pegellapadu Balancing reservoir and switch yard: Pump House with protection arrangements as per approved drawings to provide suitable Numbers of Pumps and Motors to discharge 8.2 cumecs and other electrical installations as per requirement. e) Approach channel in the foreshore of Pegellapadu balancing reservoir with a carrying capacity of 1.5 times the Design capacity of pumps. f) Construction of One Delivery Cistern

Vamsadhara & Nagavali Rivers witnessed the brunt of flash floods by two successive depressions in the Bay of Bengal coupled with heavy rainfall in its catchment areas in Orissa and Andhra Pradesh during July and August 2006. The flood waters breached the banks at several locations inundating 719 villages in 38 mandals in Srikakulam District.

The total length of flood banks of Vamsadhara & Nagavali rivers in Srikakulam and Vizianagaram Districts is about 134 Kms. Out of which 33.1 Kms length of flood banks is along Nagavali River and the balance length of 100.9 Kms along River Vamsadhara. With the experience of the past floods, it was proposed to raise the flood banks by 2.00 m over the observed maximum flood level (OMFL) of 1986 & 2006 flood for Vamsadhara & Nagavali Rivers respectively.

The government of Telangana contemplated to augment the storage capacity of the Dummugudem Anicut across River Godavari at Dummugudem village, Khammam district in Telangana State by raising the crest level by one meter from the present level at El. +49.690 m to El. +50.690 m. The scope of the Detailed Project Report included conducting topographic survey and geotechnical investigations, study of upstream submergence, checking the suitability and stability along with hydraulic and structural design for raising of crest level of the existing Anicut, cost estimate etc. The detailed project report was prepared in line with the guidelines laid down by Central Water Commission.

With the broad objective of enhancing the livelihood of beneficiaries in the project target area, government of Andhra Pradesh has taken up Andhra Pradesh Irrigation & Livelihood Improvement Programme (APILIP-II) with the assistance of Japan International Cooperation Agency (JICA). ConTec was awarded with the contract for preparation of detailed project reports for modernisation of one major and seven minor irrigation projects for stabilisation of 43051 Ha. of CCA spread over seven districts of Andhra Pradesh.

The task was successfully completed by ConTec and necessary clearances were obtained from the Central Water Commission (CWC) prior to the final approval of the project in the 135th meeting of the advisory committee of MoWR, RD & GR. Apart from the preparation of DPR’s for modernisation of eight irrigation projects assigned, ConTec was instrumental in obtaining the necessary approvals from the various directorates of the CWC for one major irrigation and nineteen medium irrigation projects in total.

Value Engineering

The Pennar River has its origin in the Chennakesava hills, North West of Nandi hills in Karanataka state and it is known as ‘Uttara Pinakini’. It enters into Andhra Pradesh in Anantapur District and then into Nellore District through a narrow gorge in the Velikonda range of hills.Two anicuts were constructed in Nellore District on River Pennar : 1. Sangam Anicut and 2. Nellore Anicut.

Sangam Anicut
As severe famines occurred in the coastal Districts, the East India Company constructed delta Irrigation works across River Godavari, Krishna and Pennar in the middle of 19th century. Construction of Sangam Anicut was sanctioned in 1881. The work was commenced during 1882 and completed by 1886. It was named after the village ‘Sangam’, where the head works were constructed. In the year 1937, two-feet falling shutters were fitted over the anicut with a view to draw increased supply to Kanigiri Reservoir and to extend 10,000 Acres of first crop and 1,000 Ac of second crop under this delta. The crest level of the anicut is +33.595 mtr and top of falling shutters is +34.205 mtr. The length of anicut is 1242.37 mtr.

Nellore Anicut
This is the last anicut across River Pennar. Captain D.C. Dutt selected the present site. The construction of the anicut was commenced in 1853. Sir Arthur Cotton inspected the anicut and proposed the one similar to the Krishna Anicut. The anicut was completed as per the proposal of Sir Arthur Cotton in 1859. The length of the anicut was increased from 481.889 mtr to 621.79 mtr. In 1919, the crest level was raised from 12.716 mtr to 13.021 mtr, which is by 0.305 m and top surface paved with 4 rows of cut granite wheel tracks to take the increasing traffic between both the banks of the River. Subsequently, in order to extend the irrigation facilities, the crest of the anicut was further raised to +13.109 M and 2 ft falling shutters were installed in 1941.

The Sangam Anicut, the Nellore Anicut along with the network of canals is called Pennar River Canal System. In addition to the main reservoirs, there are 64 Nos. of tanks in Delta area through which water is stored intermittently and supplied to the ayacut. With the completion of Somasila Project, the Delta will be getting adequate supplies to the entire ayacut, except during the failures of Monsoons. As the Sangam Anicut has become more than 100 years old, a new barrage downstream of existing barrage is under construction. The new barrage is 500 m downstream of the exiting Sangam Anicut. The project is situated at a distance of about 33Kms. from Nellore and is accessible from the left bank via SH 57. ConTec vetted and re-evaluated the technical parameters of the project for M/s Harvins Constructions Pvt. Ltd.

Preliminary design of Barrage cum bridge including preliminary general arrangement drawings, specification drawing and expected bill of quantity (civil and hydro-mechanical)

Scope of works, • Review of available data • Design philosophy and system description • Hydraulic design and fixation of various components • Preliminary design of Barrage • General arrangement drawings, specification drawings • Civil and Hydro-Mechanical BOQ • Collection of any other filed data available with department • Visit to site after finalization of preliminary general arrangement drawing

Preliminary design of Barrage cum bridge including preliminary general arrangement drawings, specification drawing and expected bill of quantity (civil and hydro-mechanical)

Preliminary design of Barrage cum bridge including preliminary general arrangement drawings, specification drawing and expected bill of quantity (civil and hydro-mechanical)

Preliminary design of Barrage cum bridge including preliminary general arrangement drawings, specification drawing and expected bill of quantity (civil and hydro-mechanical)

Preliminary design of Barrage cum bridge including preliminary general arrangement drawings, specification drawing and expected bill of quantity (civil and hydro-mechanical)

Preliminary design of Barrage cum bridge including preliminary general arrangement drawings, specification drawing and expected bill of quantity (civil and hydro-mechanical)