Our client had undertaken Design consultancy services for construction of new bridges on NH -17 from Kannur to Vengalam and from Vengalam to Kuttipuran road. This project was located at backwater estuaries. The survey coverage consist of 10 river/backwater estuary bridges located on NH17 at the eastern region of Kerala. The major challenge was surveying the areas where depth of water is very less with extreme marshy locations which were predominant in the AOI, and conventional boat could not be used. For this purpose Infycons deployed 6x6 all terrain amphibious survey vehicle which can cross ponds, stream, and can travel through marshy surface, rocks etc.
A waypoint map was prepared for the planned survey locations. Features belonging to individual bridge locations were digitized using the ortho-rectified images to act as reference. The overall database created was imported in field controller application Qinsy Survey. Further individual chainages for each bridge alignment along with their offsets were marked and a survey route mission map was prepared. Qinsy synchronized with the GPS and the base station unit and acted as GPS guidance & mapping system. Amphibious vehicle fitted with Multi-beam bathymetry equipment and DGPS traversed along planned routes and covered the entire bed surface

Longding district is one of the recently created 17 administrative districts of Arunachal Pradesh in north eastern India carved out of Tirap District. The district shares its boundary to the east with Myanmar and its boundary to the west and the south with the Indian state of Nagaland & Assam. Towards the north is the Tirap District. The current road connectivity to Longding from Assam is via Bimalapur which is a small town falling under Sonari division, Assam. The road alignment passes through deep forest region along the hill side and valleys. Since the region experiences heavy rainfall during monsoon periods, present condition of the road is poor in most of the parts and the general width is not more than 3.5 m and tends to becomes single lane in most of the stretches. Total length of the road is 46 Km. Black topping is not done in more than 70% of the road stretch. Currently very few CD structures are available along the road stretch and they are in poor condition. Since the formation of new district, it was important to upgrade the road connectivity to this remote district headquarter. Infycons were assigned the task to prepare a Detailed project report for up-gradation of the road to State Highway with double lane. Due to the arduous nature of the terrain, Mobile LiDAR was deployed to expedite the data acquisition activity. Considering the portable nature of Mobile LiDAR, mobilization was accomplished in less than 3 days. Survey was conducted by first establishing DGPS secondary control point along the entire corridor. Mobile LiDAR was used in RTK mode with frequent base station shifts. Complete alignment data was acquired in a weeks time based on which DPR was prepared.
Salient Features of Proposal
Proposed Road Length: 46 KM; CD Structure: 52 (RCC Slab Culvert); Retaining Wall: 160 m; Breast Wall: 40 m; Bridge Length: 93 Rm; Estimated Amount: >$10 Million

At a Zinc Mines in Rajasthan, Underground gallery expansion was to be undertaken without disturbing the peripheral galleries. To perform the blasting operation, drill holes were bored at site.
Infycons was approached to provide a solution to optimize the blasting operation. Infycons planned the drill locations and after post drilling, the drill hole alignments were measured using Boretrak and the blast plan was optimized to the onsite condition looking at the safety aspects on the mine. A cabled BoreTrak device was used to conduct the study along BT Manager software.
Tungabhadra dam is constructed across river Tungabhadra near the town of Hospet in Karnataka. It is considered as a multipurpose dam. catering to generation of electricity, irrigation, Prevention and control of floods etc. Its storage capacity is 135 Tmc. If there is a seasonal and late rain, the dam distributes the estimated quantity of 235 Tmc. The dam is filled as when the water is let into the canals during the rainy season. Owing to siltation the capacity has been reduced by about 28 Tmc. To counter this, balancing reservoirs are planned to store the siltation losses at different locations by constructing flood flow canal on the left bank and facilitate storing water. This further creates command area between the flood flow canal and the left bank main canal. Also, Instead of releasing the water into the river when the dam is full, the flood flow canal could be operated to fill the reservoirs in the identified areas.
Scope of the project
Conducting survey and investigation works for the preparation of Detailed Project Report for the work of “Construction of Flood Flow Canal to feed the series of balancing reservoirs on the left flank of TLBC to supplement the deficit of water in Tungabhadra Project Reservoir due to siltation” This work included detailed survey for finalization of location, Geo-technical investigation, planning and design, preparation of estimates and DPR for head work and flow canals balancing reservoir as per CWC norms. Project Brief
Unlined natural canal of total 55.3km length was proposed with a discharge of 373.275 cumec. Even if there is a flow for 30 days, about 40 Tmc of water would be available for storage. The entire canal would be in cutting and all the nalas coming in between would be inlets to the canal. Aqueducts or super passages were not proposed to keep the cost of construction less. And also all these streams joining to this flood flow canals would become independent catchments, hence could be used as catchments when there is no flow of water from the reservoirs.
The FRL of all the reservoirs and storage tanks were fixed at 497m. When the storage capacity of independent reservoir reaches 492m, the water will start flowing into the next reservoir. When the last tank reaches 492m, all the tanks starts filling simultaneously up to 497m.
In total, 14 tanks were proposed ranging from 0.02tmc to 30tmc with a maximum capacity of 30tmc at Navali in Gangavati district. All reservoirs full level is fixed at 497m and bund top levels at 500m. There were some existing small tanks whose capacity was increased. The highest proposed bond was at Navali with a bund height of 32mt which in turn creates suitable head for hydroelectric power generation.
Around 1106 hectares land area would be utilized to construct flood flow canal and around 20622 hectares of land from 31 villages would be submerged including the land already submerged in the existing projects in this location. The project would create an additional command area of 1 lakh hectares apart from supplying drinking water to nearby towns. Because of the inflows of streams, the command area would be increased.
The whole project is proposed under gravity flow. There is no lift required at any location.