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RITES invite tenders for Railway Electrification and S&T Works on Udaipur City-Himmatnagar section

Narendra Shah
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RITES invite tenders for Railway Electrification and S&T Works on Udaipur City-Himmatnagar section

NEW DELHI (Metro Rail News): Rail India Technical and Economic Service Limited (RITES Ltd) invites open tender on behalf of North Western Railway (NWR) for Railway Electrification and Signaling & Telecommunication works on single-line section of Udaipur City -Himmatnagar section of Ajmer Division, North Western Railway, Rajasthan & Gujarat.

Name of Work

Railway Electrification of 25 kV OHE works including Traction Substations, General Electrification, Civil Engineering Works including Tower Wagon Shed, Service Buildings, Staff Quarters, Track works and Signaling & Telecommunication works on existing track of single line section of Udaipur City (Excl.)-Himmatnagar (Excl) section of Ajmer Division, North Western Railway, Rajasthan & Gujarat, India

Important Details

Tender Reference Number – RITES/CO/EE/RE/WORKS/UDZ_HMT

Estimated Cost of Work – INR 178.19 Crores

Completion Period – 456 Days

Document Download Start Date – 19-May-2021 02:00 PM

Document Download End Date – 21-Jun-2021 03:00 PM

Bid Submission Start Date – 21-May-2021 10:00 AM

Bid Submission End Date – 21-Jun-2021 03:00 PM

Bid Opening Date – 22-Jun-2021 03:30 PM

Scope of Work

This Railway Electrification work shall broadly include Civil, S&T and Electrical related works –

  1. General –
  • Provision of OHE on Udaipur City (UDZ) – Himmatnagar (HMT) single line section.
  • Construction of Traction sub-station (TSS), switching posts (SPs/SSPs).
  • Modification (Indoor and Outdoor) to telecommunication system to suit 25 kV A.C. traction as per existing guidelines.
  • Provision of service buildings and staff quarters along with associated civil engineering works.
  • Tower Wagon siding for Tower Wagon including inspection pit, etc.
  • Co-ordination & Liaison, if required, with state electricity authorities regarding 132 or 220 kV Transmission Line network from nearby Grid Sub-station (GSS) to Traction Sub-station (TSS) in this section. However, Construction of Transmission Line from GSS to TSS not covered in the scope of this tender.
  • Modification of Power Line Crossings.
  • All allied works necessary for successful completion of the project including Maintenance & supervision of entire system during defect liability period of the project.

2. Civil Works –

  • Establishment of survey control points for accurate survey using high end survey equipment such as DGPS and Total Station connected with nearest GTS Benchmark and establishment of pillars.
  • Co-ordination & liaison for Land Acquisition for Traction Sub Station, Quarters, Service Buildings transmission line, etc., if any.
  • Provision of Earth work in-formation for Traction Sub Station, Tower wagon Shed & Service roads, approach road for TSS as per site conditions and approved drawing.
  • Planning, Design, Construction and Raising of Foot Over Bridge, Road Over Bridge, or any other overline structure.
  • Planning, design, and construction of Service Buildings, OHE cum PSI depots, TSS, TWS, SP/SSP’s Buildings, AEE office cum Training Centre, S&T office, TRD office, S&T Structures, Relay Room, Battery Rooms, etc. as per approved drawing and client’s requirements.
  • Planning, Design, and Construction of Residential Quarters (Type -2, Type-3, Type -4, and Type-5) with water supply and sewerage facilities, drainage, service roads, approach road, boundary walls, etc., at different locations, as per approved drawing and client’s requirements.
  • Water Supply arrangements for the Residential Quarters, Office Buildings, Service Buildings, etc., as per approved drawing and client’s requirements.
  • Transportation, handling, stacking, watching, protection, etc., for the construction and Track materials from manufacturer’s works/place of purchase to the working sites.
  • Testing of Material, Quality of works, documentation as per ISO and RDSO/Railway specifications and ensuring precautionary measures and safety arrangements.
  • Providing Ready Mix Concrete (RMC) from reputed supplier of RMC as per approved design mix, drawings, specifications, and contract agreement.
  • Protection works for bridges: Protective screens at FOB’s, ROB’s, etc.
  • Raising of FOB in the section
  • Modification in the platform shelters, passenger amenities, and miscellaneous works as per client’s requirements/approved drawings.
  • Provision of Height gauges at Level Crossings.
  • Construction of Low height sub-way (LHS), Road under bridge (RUB), Road over bridge (ROB) in replacement of Level Crossings, as per client’s
  • requirements.
  • Provision of Permanent Way Linking, construction for TWS & TSS at different locations as per Railway requirements.
  • Preparation and supply of “As Built” drawings.

3. Signaling & Telecommunication works –

  • Modifications in existing S&T plans/drawings for 25 kV ACT system between Udaipur City (excl.)-Himmatnagar (excl.) section.
  • Preparation of new S&T plans & other drawings.
  • Modifications in existing signaling installation at stations and mid-section LC gates for 25 KV ACT between Udaipur City (Excl.)-Himmatnagar (Excl) section.
  • Replacement of existing single line block instruments by single line block instruments suitable for 25 KV AC Traction between Udaipur City (excl.)-Himmatnagar (excl.) section.
  • Provision of additional signal cables for signaling modifications and provision of Quad & OF cables for additional telecom requirements for RE.
  • Provision of additional telecom facilities.
  • Provision of communication media for SCADA.
  • Execution of S&T work and commissioning S&T system as per NR practices/ approvals.
  • Preparation of “as built drawings”.

4. Electrical Works –

  • Supply & installation of 25 KV single Phase AC overhead equipment and all associated works including preparation of all related drawings.
  • Construction of Traction sub-station, switching posts, Sectioning Posts, Sub Sectioning Posts, Maintenance Depots etc.
  • Electrification of Service buildings, Residential Buildings, FOBs/ROBs, LC gates and streets/roads, connecting Service buildings, Residential Buildings & stations.
  • Modifications to existing 11 kV & 33 kV overhead Power Line Crossings
  • Liaison with State Electricity Authorities / Board and other related Government Agency for Power supply arrangement from utility/ State GSS to Proposed TSS and augmentation of 25kV bays, as per requirement.
  • Modification in LT distribution lines at stations as required, to provide necessary safety and electrical clearance required for 25 kV AC electrification.
  • Provision/expansion of rooms for SCADA equipment’s, UPS, workstations, etc. in the existing SCADA Centre, if any.
  • Modification in existing SCADA system, SCADA work at TSS, SP and SSPs including four (04) years of comprehensive maintenance.
  • Training of staff for 25 kV AC Traction system.

For more details, tender documents can be downloaded from the website –https://etenders.gov.in/eprocure/app 

Noida Metro re-invites bid for providing free E-Rickshaw services from Sector-51 and Sector-52 Metro Stations

Narendra Shah
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0
Noida Metro re-invites bid for providing free E-Rickshaw services from Sector-51 and Sector-52 Metro Stations

NOIDA (Metro Rail News): Noida Metro Rail Corporation Limited (NMRC) re-invites RFP (Request for Proposal) for providing free E-Rickshaw services to Metro commuters between Sector-51 and Sector–52 Metro Stations through dedicated pathway/cartway.

Name of the Bid: RFP for Engagement of Agency for providing free ERickshaw services to Metro commuters for seamless connectivity between Sec -51 Metro Station (NMRC) and Sector – 52 Metro Station (DMRC) through dedicated pathway/cartway.

Important Details

Tender Reference Number – NMRC/Free E-Rikshaw/147(R1)/2021

License Period – 2 Years

Pre Bid Meeting Date – 25-May-2021 11:00 AM

Document Download / Sale Start Date – 18-May-2021 02:00 PM

Document Download / Sale End Date – 07-Jun-2021 03:00 PM

Bid Submission Start Date – 18-May-2021 02:00 PM

Bid Submission End Date – 07-Jun-2021 03:00 PM

Bid Opening Date – 07-Jun-2021 04:00 PM

Requirements / Pre-requisites for Operator –

  • Operator has to ensure 10 operational E-Rickshaws at all time during operation.
  • All E-Rickshaws shall be owned, managed and controlled and operated by the Operator and operator will bear all the associated cost.
  • The operator shall engage minimum four-seater E-Rickshaws, excluding the driver.
  • The operator shall make own arrangements for lubricants / battery charger, batteries etc., and all other maintenance works as applicable necessary for the operation of the fleet.E-Rickshaw parking facility and Charging facility shall also be managed by the Operator company, however alternatively NMRC can also provide the spaces (other than Sec – 51 Metro Station) as per feasibility for develop parking and charging facility by the perator at their own cost and risk and  same will be on chargeable basis.
  • E-Rickshaws shall be conforming to the latest specifications and relevant standards notified by Government of India/Govt. of UP and will carry certification from approved testing centers for the same.
  • E-Rickshaws shall have the certification from Government of India approved testing centres (ARAI, ICAT, etc.), so as to satisfy the required performance of E-Rickshaw as a whole and also conformance to the relevant applicable specifications for the main components used in it as the Motor, Battery, Motor Controller, Mechanical Power Transmission system, its body, other auxiliary systems such as brakes, lighting and control, etc. and the overall safety.
  • For reliable and economical after – sale service, indigenously developed superior designs by reputed manufacturers of E-Rickshaws with Solar panel shall be preferred.
  • Each E-Rickshaw shall be registered individually with appropriate Transport Authority, if required.
  • Number of E-Rickshaws deployed by the Operator shall be as per the number mentioned in the RFP to match with the required frequency and load of metro commuters
  • E-Rickshaws deployed by the Operator shall be supplied from an original manufacturer of the E-Rickshaws/ an Authorised dealer thereof.
  • The e-rickshaw shall be fully compliant with the Government’s Make in India campaign.
  • Zero Carbon emissions as vehicle being electric.
  • Fleet of E-Rickshaws for metro connectivity may be given a uniform and pleasing appearance; proposed colour and design in this regard should be of Aqua colour bearing the Logo of NMRC.
  • Literate and trained drivers in Uniform shall be deployed by Operator to run these E-Rikshaws.
  • Preferably a suitable overnight parking hub(s) to park E-Rickshaws (at night) and to carry out repairs and maintenance suitably equipped with spares and technical team shall be available with the Operator. All expenses / cost related to maintenance / refurbishment of vehicles will be borne only by the operator for the tenure of the contract. In the event of vehicle getting damaged beyond repair the operator may arrange for replacement of vehicle at his discretion but NMRC shall not be liable for the same.

Sector – 51 Metro Station of Aqua line (NMRC) and Sec – 52 Metro Station of Blue line (DMRC) is adjacent to each other and there are a number of passengers who use both Metro system on regular/daily basis. To provide seamless, hassle free, easy and free connectivity between these two Metro Stations, it is conceptualized to provide the free connectivity through E-Rickshaws operated on a dedicated pathway/cartway.

For more details, tender documents can be downloaded from the website – http://etender.up.nic.in or on NMRC website – www.nmrcnoida.com 

90% of Viaduct work is completed for Nagpur Metro Reach-4

Narendra Shah
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0
90% of Viaduct work is completed for Nagpur Metro Reach-4

NAGPUR (Metro Rail News): 90% of Viaduct and Station construction work is completed from Sitabuldi to Prajapati Nagar road of Nagpur Metro Reach-4. Construction work for Nagpur Metro is underway at a rapid pace despite the ongoing corona crises. A total of nine metro stations are proposed on this route of 8.30 km between Sitabuldi Interchange to Prajapati Nagar Metro Station.

At present, 75% of the track laying work is completed for this Central Avenue Reach-4 route. Central Avenue is one of the major routes connecting the east and west parts of Nagpur. Despite lockdown due to coronavirus, Maharashtra Metro Corporation Limited (Maha Metro) is working at great speed to complete Phase-1 of Nagpur Metro.

2 out of 4 Reaches of the Nagpur Metro Rail Project have already been completed and the remaining 2 Reaches are expected to become operational by the end of this year.

Phase-1 of Nagpur Metro comprises construction of 38.21 km long network with 2 lines i.e. Orange Line and Aqua Line. Reach 1 under Orange Line from Sitabuldi to Khapri of length 13.5 km and Reach-3 from Sitabuldi to Lokmanya Nagar under Aqua Line of length 11 km are already operational. Reach-2 (Orange Line) from Sitabuldi to Automotive Square and Reach-4 (Aqua Line) from Sitabuldi to Prajapati Nagar will start operation by December this year.

This 38.21 km long route under Phase-1 of Nagpur Metro is one of the fastest executing metro projects in the country. The viaducts are nearing completion and tracks have been laid to a large extent. Many stations are in advanced stages of completion. A double decker flyover is also being built on Kamptee Road.

Alstom Ballarat plant to manufacture 25 new trains for Melbourne Suburban Railway

Narendra Shah
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0
Alstom Ballarat plant to manufacture 25 new trains for Melbourne Suburban Railway

MELBOURNE (Metro Rail News): French rolling stock manufacturer Alstom has won a contract worth $986 million to manufacture 25 new trains at its Ballarat plant in Victoria for Melbourne’s suburban network.

According to the plans unveiled on Tuesday by acting Premier of Victoria James Merlino and Public Transport Minister Ben Carroll, Alstom’s Ballarat factory will start building the X’Trapolis 2.0 trains from next year and with operations of the train to began on the network by 2026.

These trains will consist of six cars each and will replace the ageing Comeng fleet. These trains will be required to be built with a minimum 60% of local content. Trains will be designed to have capacity of 1200 passengers which is well beyond the Comeng capacity of about 760 passengers.

According to Mr. Carroll, “We are currently the only state that actually builds trains, builds trams and builds buses. Often our factories are supplying other public transport modes to other states”.

Mr Carroll said the new trains would be lighter and more energy efficient and the doors will be wider in a bid to reduce wait times at stations, while carriages will be roomier and more accessible for people with wheelchairs and prams. According to him, the contract would deliver a major boost to regional manufacturing.

According to Government, Alstom will employ 150 people, adding to the 25 workers currently engaged at the dormant Ballarat site, while a total of 750 jobs will be created. There will be spending of about $13 million for upgrading the Ballarat facility.

According to Alstom’s managing director in Australia, Mark Coxon, 15% of the workers would-be apprentices and 7% would be disadvantaged Victorians. He said the company was exploring different designs, including some with “transversal and longitudinal seating”, which would involve seating running along the sides of the carriages rather than across them.
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Public Transport Users Association spokesperson Daniel Bowen said many of the Coming trains are nearly 40 years old and will need to be replaced before they start to cause widespread reliability problems.

Indian Railways delivers more than 11030 MT oxygen to various States battling corona crises

Narendra Shah
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0
Indian Railways delivers more than 11030 MT oxygen to various States battling corona crises

NEW DELHI (Metro Rail News): Giving a major assistance to the country in the wake of rising corona crises and overcoming shortage of oxygen supply across various States battling Covid-19, Indian Railways has delivered more than 11030 MT of Liquid Medical Oxygen (LMO) through more than 675 tankers to various States across India.

A total of nearly 175 Oxygen Expresses have completed their journey so far and brought relief to various States. Southern states of Kerala, Andhra Pradesh, Telangana, Karnataka and Tamil Nadu got a big boost in Oxygen supply with several Oxygen Expresses delivering their loads on 15th May night and on 16th May.
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NCR region crossed the delivery of more than 5000 MT of Oxygen for further distribution. Oxygen Expresses have been delivering nearly 800 MT of LMO to the Nation each day for last few days. Kerala received its first Oxygen Express at Ernakulam with 118 MT of load.

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It is Indian Railways endeavour to deliver as much LMO as possible in the shortest time possible to the requesting States.

According to Ministry of Railways, 521 MT of Oxygen has been offloaded in Maharashtra, nearly 2858 MT in UP, 476 MT in MP, 1427 MT in Haryana, 565 MT in Telangana, 40 MT in Rajasthan, 480 MT in Karnataka, 200 MT in Uttarakhand, 350 MT in Tamil Nadu, 81 MT in Punjab, 118 MT in Kerala and nearly 3794 MT in Delhi.

In order to ensure that Oxygen relief reaches in the fastest time possible, Railways is creating new standards and unprecedented benchmarks in running of Oxygen Express Freight Trains. The average speed of these critical Freight trains is way above 55 in most cases over long distances. Running on high priority Green Corridor, with a highest sense of urgency, operational teams of various zones are working round the clock in most challenging circumstances to ensure that Oxygen reaches in fastest possible time frame. Technical Stoppages have been reduced to 1 minute for crew changes over different sections.

Tracks are kept open and high alertness is maintained to ensure that Oxygen Express keeps zipping through. All this is done in a manner that speed of other Freight Operation doesn’t get reduced as well.

Railways has mapped different routes with Oxygen supply locations and keep itself ready with any emerging need of the States. States provide tankers to the Indian Railways for bringing LMO.

Agra Metro first station is now taking shape

Narendra Shah
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0
Agra Metro first station is now taking shape

AGRA (Metro Rail News): Despite the extreme challenges created by the second wave of Covid-19, construction work for Agra Metro Rail Project continues as Uttar Pradesh Metro Rail Corporation (UPMRC) has prepared 50 pillar bases in just 5 months, while 18 pillars, 50 pile caps and 414 piles have been completed so far for the elevated section of the Priority Corridor between Taj East Gate to Fatehabad Road.

Along with this, the construction of horizontal beams for Taj East Gate Station has begun as a result the first station of Agra Metro has started taking shape.

For the Taj East Gate metro station, the work of piling in ‘A’, ‘B’ and ‘C’ grids have been completed. Six Piers are already ready in the ‘B’ Grid as a result construction of the Horizontal Beam has initiated here. At the same time, pile caps are being constructed for the ‘A’ and ‘C’ grids. Currently, three pile caps have been constructed in both these grids.

Construction of the median has also started after completion of the pillar work from the Taj East Gate metro station to the dead end with removal of the temporary boundary wall, making the road look wider as before. Just like Lucknow and Kanpur Metros, UPMRC will carry out plantation in median of both corridors of Agra Metro to provide greenery and aesthetic look to the metro project.

The Priority Corridor of Agra Metro comprises construction of 6 km long section from Taj East Gate to Jama Masjid with six stations. Contract is awarded to Sam India Built Well Pvt. Ltd. for the elevated portion of length 3 km with 3 stations namely – Fatehabad Road, Basai & Taj East Gate. However, tender is still pending for the underground section of length of 3 km that will run from Jama Masjid to Taj Mahal with three underground stations.

Uttar Pradesh Metro Rail Corporation (UPMRC) has set a deadline of March 2024 to start operation of metro trains on the Priority Corridor.

Line-1 (14.24 km) of Agra Metro is partly elevated (6.56 km) and partly underground (7.68 km) with 14 stations. These stations are Sikandra, Guru Ka Taal, ISBT, Shastri Nagar, RBS College, Raja Ki Mandi, Agra University, Medical College, Jama Masjid, Agra Fort, Taj Mahal, Fatehabad Road, Basai & Taj East Gate.

UPMRC is following a special strategy to maintain the pace of work in this difficult time of Covid-19. The most important aspect for the good pace of work is the workers and the health and convenience of the workers are being taken of utmost care under the Agra Metro Rail Project. Along with this, the guidelines issued by the government regarding Covid-19 are being completely followed.

Kanpur Metro’s Priority Corridor Gets ISO Certification for Environment & Safety Management

Narendra Shah
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0
Kanpur Metro’s Priority Corridor Gets ISO Certification for Environment & Safety Management

KANPUR (Metro Rail News): Kanpur Metro’s Priority Corridor, which is being built between IIT & Motijheel has attained the ISO certificates for environment & safety management. The corridor has been certified with ISO 14001 for environment management & ISO 45001 for safety management. After the rigorous audit by the auditors of United Registrar of Systems, Noida affiliated with UKAS, United Kingdom, Kanpur Metro has achieved this certification for its 9KMs long Priority Corridor.

United Registrar of Systems has certified that Uttar Pradesh Metro Rail Corporation Ltd. (UPMRC) has been fulfilling all the requisite standards required for the provided certification during the execution of the Kanpur Metro Rail Project’s Priority Corridor. To verify that the project has a proper system in place for enabling the policy of environment & safety management, proper execution, regular reviews and accordingly to execute the corrective measures; an audit team reviewed the project last month. UPMRC has already started planning to get these certifications for the whole Corridor-1 i.e. from IIT-Kanpur to Naubasta.

UPMRC always ensures the compliance of international standards during the project execution. Talking about the Lucknow Metro Project, it is to be informed that the 23 KMs long North-South Corridor of Lucknow Metro (CCS Airport to Munshipulia) had received this certification in 2018 i.e. before commencing the passenger services/revenue operations on the whole corridor in March, 2019.

Wabtec’s FLXdrive all-battery electric locomotive reduces freight train fuel consumption by more than 11 %

Narendra Shah
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0
Wabtec’s FLXdrive all-battery electric locomotive reduces freight train fuel consumption by more than 11 %

Wabtec Corporation (NYSE: WAB) revealed today a rail industry first: the FLXdrive battery-electric locomotive reduced fuel consumption and greenhouse gas emissions by more than 11% on average over an entire train. That is the equivalent of saving over 6,200 gallons of diesel fuel and reducing nearly 69 tonnes of CO2 emissions.

These results are the culmination of a three-month pilot with BNSF Railway, the largest railroad in the United States, during which the FLXdrive, the world’s first 100% battery locomotive, was tested in revenue operation through more than 13,320 miles of hilly terrain in San Joaquin Valley, California – a region surrounded by mountains.

“The FLXdrive battery-electric locomotive is a watershed moment for freight rail, accelerating the industry’s transition to low- to zero-emission locomotives,” said Eric Gebhardt, Chief Technology Officer at Wabtec. “It strengthens the rail industry’s status as the most effective and environmentally friendly mode of transportation.

Wabtec, BNSF, and the San Joaquin Valley Air Pollution Control District received a $22.6 million grant from the California Air Resource Board for the California pilot programme. The pilot’s 430,000-pound FLXdrive has 18,000 lithium-ion battery cells. The battery locomotive was charged at the rail yard and recharged while travelling via regenerative braking.
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The Trip Optimizer system, an intelligent cruise control system designed by artificial intelligence to adapt to any twist and gradient of the track in the most energy-efficient way possible, manages the total train energy flow and delivery.

The aim of Wabtec is to create the next generation of zero-emission locomotives. The corporation has a direct roadmap to using batteries, hydrogen internal combustion engines, and hydrogen fuel cells to power new locomotives and repower existing locomotives. It is part of Wabtec’s strategy for the rail sector to play a vital role in the development of a renewable energy economy, reducing global carbon emissions by up to 300 tonnes per year.

Tata Projects won Rs. 241 cr Railway Electrification contract from North Western Railway

Narendra Shah
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4
Tata Projects won Rs. 241 cr Railway Electrification contract from North Western Railway

NEW DELHI (Metro Rail News): IRCON International Limited has issued a Letter of Acceptance (LOA) to TATA Projects Limited for the work related to supply and commissioning of railway electrification work for Pipar – Bilara, Makrana – Parbatsar, Merta Road-Merta City, Merta Jodhpur (Rai Ka Bag) & Merta – Phulera Sections of North Western Railway.

Tender Number: IRCON/ELECT/5033/RE NWR PKG 3/EPC/3

Name of Work: Design, Supply, Installation, Testing & Commissioning of Railway Electrification work for Pipar – Bilara, Makrana – Parbatsar, Merta Road-Merta City, Merta Jodhpur (Rai Ka Bag) & Merta – Phulera Sections of North Western Railway (Package No. 3) on Engineering, Procurement and Construction (EPC) Mode”.

Period of Completion: 450 Days

Contract Value: INR 241.06 Crore

The awarded contract value is 22.30% below the estimated cost of INR 310.25 Crore. A total of 13 firms submitted the financial bids for this contract and among them, TATA Projects Limited quoted the lowest bid value and bag the contract for this work.

Earlier this month, TATA Projects Limited has also won another railway electrification contract from IRCON. The details for that contract is given below –

Tender Number: IRCON/ELECT/5032/RE NWR PKG 1/EPC/2

Name of Work: Design, Supply, Installation, Testing & Commissioning of Railway Electrification work for Hanumangarh-Sriganganagar-Sarupsar-Suratgarh, Incl. Sarupsar-Anupgarh, Madar-Pushkar, Degna-Ratangarh, Hisar-Suratpura Sections of North Western Railway (Package No. 1) on Engineering, Procurement and Construction (EPC) Mode.”

Period of Completion: 600 Days

Awarded Value: INR 317.23 Crore

Kolkata Metro completes entire tunneling work of East-West Corridor

Rajat Khanna
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1
Kolkata Metro completes entire tunneling work of East-West Corridor

KOLKATA (Metro Rail News): Tunneling work for the 16.6 km-long East-West Metro corridor, which hit several hurdles over the last two years, has finally been completed, said KMRC Officials.

The tunneling work gets completed by Tunnel Boring Machine [TBM ] in East-West Metro Corridor with the breakthrough of “Urvi“ at Bowbazar, Kolkata on 15th May 2021. With this breakthrough, the entire TBM tunneling for the Kolkata East-West Metro Project is completed. The stretch was difficult for tunneling work as it had century-old buildings.

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TBM 2 Urvi breakthrough at Bowbazar, Kolkata on 15th May 2021

According to the statement by the Ministry of Railways, this challenging tunnel drive of 800 M has been completed successfully, and according to this pandemic situation, we follow all the necessary protocol and precautions during the completion of work.

“The Tunnel Boring Machine ‘Urvi’ that had earlier completed East Bound tunnel from Esplanade to Sealdah on 9th October 2020 was relaunched from Sealdah after necessary refurbishment and inspection 9th January 2021 to complete the balance 800 M tunneling work in West Bound tunnel from Sealdah to Bowbazar. This drive of tunneling has been completed and the tunnel boring machine break through at Retrieval Shaft at Bowbazar has been achieved Saturday on 15th May 2021.

This TBM [Urvi] has passed below Sealdah Flyover also for which vehicular movement on the Fly over was closed for 3 days for safety reasons. After completing this Tunnel Boring Machine drive, the tunnel boring machine ‘Urvi’ and the other stalled TBM ‘Chandi’ will be retrieved from this retrieval shaft at Bowbazar.

Excavation of shaft after ensuring the water-tightness of the shaft and the affected tunnel and retrieval of the TBMs are intricate activities that have to be done safely and hence will take time.

After completion of the entire excavation, both the TBMs will be retrieved in pieces from the shaft. The RCC flooring and roofing for the shaft area

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