India-based Larsen & Toubro (L&T) has announced that its construction arm secured contracts valued at INR21.7bn ($324.6M) across its various business segments.
The construction arm of Indian conglomerate L&T has bagged INR30.39bn ($446.8M) worth of orders across its various business segments.
There is a significant risk of severe drought in England and Wales with the potential to disrupt the public water supply sector, according to a Water UK report.
An equal stake joint venture (JV) of CPB Contractors and UGL Limited has secured a design and build contract to increase the capacity of the Western Treatment Plant in Melbourne, Australia. [Image courtesy of Melbourne Water]
Indian infrastructure giant Larsen & Toubro (L&T) has announced that its construction unit has won contracts worth INR19.26bn ($282M) across its business units.
Yorkshire Water has received planning approval from Leeds City Council for the construction of a new £72M sludge treatment and anaerobic digestion facility in Leeds, UK.The contract has been awarded to Black & Veatch with the civil engineering element being delivered by Clugston Construction.The new facility — to be located at Leed’s Knostrop waste water treatment works— will replace the existing sludge and bio-solid incinerator, which was built in 1993, and enable the more efficient and effective treatment of sewage combined with the additional benefit of renewable power production from the waste water effluent. The plant will have a capacity to process 131t of dry sludge daily and will generate enough renewable energy to meet 55% of Knostrop’s energy needs — enough to power 8,000 households.It will also help the company reduce its carbon emissions by 15%, and contribute to achieving the planned target of recycling 94% of the region’s sludge by 2020.The facility is planned to be complete in 2019.
A CH2M and Parsons joint venture has won a contract from the District of Columbia Water and Sewer Authority (DC Water) for its $1.3bn capital improvement programme (CIP).The improvement programme aims at repairing and replacing most of the underground water and wastewater infrastructure in Washington, D.C. and neighbouring jurisdictions.The JV will perform programme management services for the development and implementation of CIP.CH2M global water business group president Peter Nicol said: “CH2M has worked with DC Water for many years on capital improvement projects and most recently has been leading the utility’s Asset Management Program. “Aging underground infrastructure is a national problem and leads to disruptions in service and threatens water quality. We are excited to help DC Water tackle the complicated repair and replacement of its aging underground water and wastewater infrastructure to ensure local communities have access to safe drinking water and sanitation systems.”The CIP programme will involve the planning, design and construction of linear and vertical infrastructure in the water and wastewater service areas such as piping, pumping, storage and other appurtenance structures including hydrants, valves, inflatable dams, diversion structures and manholes.It will also involve the rehabilitation or replacement of small- and large-diameter water mains, the rehabilitation of water, sanitary and storm pumping stations, and the rehabilitation of minor and major sewers and storage facilities.
UK-based construction and project management consultancy Turner & Townsend has been chosen to provide commercial support services for the £4.2bn Thames Tideway Tunnel in London.Under the contract, the company will provide project and programme management resources for the super-sewer project over the next four years.The 25km sewer tunnel — expected to be the second largest infrastructure project in London, after Crossrail — has been designed to reduce the millions of tonnes of raw sewage that overflows into the River Thames each year. Turner & Townsend’s director of infrastructure Peter Depledge said: "We're delighted to be playing a role in ensuring the timely delivery of such a huge and important project which will deliver a positive outcome for Londoners for generations ahead."Thames Tideway chief operating officer Mark Sneesby said: "As we start main construction work on the Thames Tideway Tunnel, we are confident that having the knowledge and expertise of three of the most prominent consultancies will be a huge asset in our work to clean up London's river."Turner & Townsend is one of the three consultants on the project’s framework.
Larsen and Toubro’s construction unit has secured contracts worth INR11.67bn ($175M) across various business segments.The water and effluent treatment business won engineering, procurement and construction (EPC) orders worth INR8.43bn ($126M).The Rashtriya Ispat Nigam Limited (RINL) awarded a contract for the construction of a second water storage reservoir in their Visakhapatnam Steel Plant. The scope of the project also includes the construction of an additional balancing reservoir and the erection of associated structures.The business also won an order from Karnataka Urban Water Supply & Distribution Board (KUWSDB) for ‘24/7 Pressurized Water Supply for Tumkuru City’. The contract includes the conversion of the existing water supply system into a 24/7 operation. The scope of the project includes improvements to the 50MLD WTP, the laying of 560km of pipeline network, metered house service connections and other associated infrastructure works.The water and effluent treatment business also secured a contract from the Public Health & Municipal Engineering Department (PHMED) government of Andhra Pradesh for a comprehensive Storm Water Drainage Scheme in Vijayawada city.Meanwhile, the metallurgical and material handling business of Larsen and Toubro’s construction unit won orders worth INR2.59bn ($39M), including the add-ons. A contract has been awarded by Indian Oil Corporation for the construction of Pet Coke Handling System in Haldia.
A joint venture between Kenny Construction and Obayashi has secured a $279m contract to build the South Hartford Conveyance and Storage Tunnel (SHCST) in Hartford, Connecticut.
Adding capacity to the over-tasked wastewater system in Mexico City, an alignment through changing ground conditions is a likely candidate for Robbins’ Crossover TBM, Nicole Robinson reports.In the mountains northwest of Mexico City, the soft rock is self-supporting and very consolidated, a dream to mine. "Even the face is self-supporting," says Roberto Gonzalez, Robbins' general manager in Mexico. "You could use a normal backhoe and excavate like that. It's a beautiful ground to bore."But the alignment crosses valleys of tuff, faults and finishes with a stretch of soft ground with low cover. This is the scenario for Túnel Emisor Poniente II (TEP II), or the English translation of West Drainage Tunnel II.Conagua, Mexico's national water commission, is building the 5.9km-long tunnel with a 7m i.d. to reduce flooding in the area, and increase wastewater capacity. Across three municipalities, some 2.1 million people will benefit from the tunnel project.The contractor joint venture of Aldesa, Proacon and Recsa chose an 8.7m diameter, dual-mode type machine capable of "crossing over" between rock and EPB. With the August 2015 tunnel boring machine (TBM) launch on TEP II, manufacturer Robbins has supplied its first Crossover machine in Mexico.End gameRobbins draws comparisons to the Kargi Kizilirmak hydroelectric project in Central Turkey. The design of the TEP II machine was based largely on experience from past projects, and that TBM in particular. While initial reports on the Turkey project showed fractured hard rock, Robbins explains, within 80m of launch the geology became substantially more difficult than expected, consisting of blocky rock, sand, clays and water-bearing zones. The machine required multiple bypass tunnels and major modifications before it could resume excavation.Robbins says these modifications proved instrumental to the design of its Crossover TBMs, including the TEP II machine.In Mexico, the contractor JV expects to convert the machine from hard rock to EPB mode due to changing ground conditions in the last kilometre of the alignment. "Initially the proposal was a hard rock machine but they found they have 800m of water-more EPM conditions-that's the reason we proposed a Crossover," explains Javier Alcala, job site engineer for Robbins on TEP II.The ground conditions at TEP II are complex, from competent to weathered volcanic rock to clay, and sand. The final 800m is also the portion of the alignment with the lowest cover, some 12m, and the most populated. This is one of the reasons for using a Crossover machine. The rest of the drive has between 50-60m of cover on average with some stretches up to 150m."We try not to convert unless it's completely necessary because you stop, you have to drain the screw conveyor inside the machine, and you have to make a lot of changes, for example on the cutterhead," Robbins' Gonzalez explains.As an open mode machine boring in rock, the TBM is equipped in the event of entering running ground, he says. "These closure doors are able to maintain the material in the cutting chamber. They're just a safety." In smaller valleys of tuff there is potentially some water, but it's unknown for now, he explains."For these cases we believe that these closure doors will be held to see what we have to do with the material, if we have to consolidate in the front."Tight fitAldesa's Castillo says one of the biggest accomplishments on the project so far has been organising the logistics in such a small work space-fewer than 10,000 sq m. The JV excavated a 30m deep launch shaft supported by 800mm-thick Milan walls (slurry walls), and used on-site first time assembly, he says, to start excavation as soon as possible.Once assembled by gantry crane, the machine bored 100m before adding back gantries. When completely assembled the machine has nine gantries for a total length of 1,030m.At the time Tunnels & Tunnelling visited the project, the crews were still adjusting to having the full machine in operation, and had only recently started using the continuous conveyors for muck.The TBM was mining through a transition zone between tuffs and dacites, and had excavated 435m by mid November 2015. At the time of publication the TBM has bored 1,417.5m, which equates to 945 rings. The best day has seen an advancement of 42.8m and the best week is 185.1m. Robbins' Mexico office reports the TBM has reached softer geology and is boring very well.Tunnelling is expected to finish within this year and a second lining of reinforced concrete will be installed following excavation to extend the life of the tunnel. "Once we arrive to the final bit, it's a very close curve of 400m radius," Alcala explains.The tunnel alignment ends along the rivers of San Javier and Xochimanga in Atizapan de Zaragoza.
Construction has started on Scotland’s biggest waste water tunnel, using a tunnel boring machine named Daisy.The Shieldhall Tunnel will be constructed for Scottish Water by the Glasgow Tunnel Partnership, run by a commercial joint venture between Costain and Vinci Construction Grands Projets called CVJV.The £100M tunnel measures 5km in length and forms a key part of Scottish Water’s £250M five-year programme of work to enhance river water quality and the natural environment.The 1,000t TBM being used for the projects measures 180m in length and will commence construction on the tunnel between Craigton and Queen’s Park. The machine was named Daisy the Driller by Lewis Bennett of Craigton Primary School, through a competition run by Scottish Water. The TBM is expected to complete its journey and emerge at Queen’s Park after nearly 13 months, when the new tunnel will be connected to the existing network.The cabinet secretary for environment, climate change and land reform Roseanna Cunningham has launched the tunnel boring machine (TBM) for the project.Scottish Water CEO Douglas Millican said: “The Shieldhall Tunnel is the biggest of many projects which are progressing deep beneath the Greater Glasgow area’s streets largely out of sight of most people who live, work and travel here.“Much of the existing waste water infrastructure was built in Victorian times and the modernisation of the system and construction of new underground assets such as the Shieldhall Tunnel will enable Greater Glasgow to realise its above-ground aspirations.”The project is expected to be complete by the end of 2017.
L&T’s construction unit has won contracts worth a combined value of INR35.9bn ($534.1M) across various business lines.The company’s heavy civil infrastructure business, along with partner PES Engineers Private, has bagged an INR18.5bn ($274.4M) contract to build a barrage in Telangana, India.The scope of the contract, awarded by the Irrigation and Command Area Development Department of Telangana, includes construction of a 1632m-long barrage with radial gates.The scope of the contract also includes mechanical works related to the barrage radial gates with rope drum hoist arrangements, as well as construction of 2592m guide bunds on either side of the barrage across river Godavari at Medigadda, Mahadevapur in Karimnagar district, Telangana.L&T’s deputy managing director and president S.N. Subrahmanyan said: “It is noteworthy that the Government of Telangana has initiated work on the Medigadda Barrage Project in a very systematic and remarkable manner. “Christened a “Dream Project” of Telangana state, L&T is indeed proud to be part of this improvement plan to create irrigated agricultural production systems, which are vital for our country’s development.“This order reaffirms our expertise in building complex irrigation systems to empower the agrarian belts of the country.”L&T’s Water & Effluent Treatment Business has won an INR10.4bn ($154.8M) engineering, procurement & construction (EPC) contract from the Water Resources Department of Madhya Pradesh to build a balancing reservoir, distribution chamber and pumping station at Bansujara left bank’s main canal in Tikamgarh district, Madhya Pradesh.The contract includes design, procurement, construction and installation of pumping systems, rising and gravity main lines, branch lines, as well as distribution network including control and regulation system.The business has also bagged a contract from Ahmedabad Municipal Corporation, Gujarat, to build a 30 MLD Common Effluent Treatment Plant and associated pumping station at Danilimda, Ahmedabad. The plant will make use of sequential batch reactor technology.L&T’s Building & Factories Business has secured an INR3.94bn ($58.5M) contract for the construction of software development blocks. The scope of the work includes civil, structural, MEP and finishing works.L&T’s Power Transmission & Distribution Business has won EPC contracts valued at INR3.12bn ($46.3M) in the international market. This includes a contract from a Middle East customer to build two high-voltage substations. The business also won an order to build a medium voltage distribution substation and underground cabling works from Millennium Challenge Account in Malawi, Africa.
A Salini Impregilo-led consortium has won a $955M contract from Kuwait’s Public Authority for Housing Welfare to build an urban residential development in Kuwait.The contract forms part of the South Al Mutlaa Housing Project and includes the construction of 12,000ha of residential development about 40km northwest of Kuwait City.Upon completion, the project will provide accommodation for 400,000 residents. The project will also see the construction of 150km of roads and related structures, numerous art works, lighting infrastructure, water distribution, rainwater gathering and sewage systems, and other civil works.
Granite Construction subsidiary Kenny Construction has won four sewer renewal contracts worth $119M from the City of Chicago.Under the contracts, Kenny will be responsible for the cured-in-place pipe (CIPP) lining, and CIPP structure lining for two years with an option to extend by one year.The contracts are part of a multi-year programme to replace Chicago’s aging brick sewers, financed by the City of Chicago and Illinois Environmental Protection Agency. Granite Construction said that CIPP lining and structure lining extends the life of hydraulically adequate sewers at lower cost than excavating and replacing sewers in the streets, and is less disruptive to vehicular and pedestrian traffic during construction.Construction is set to commence in the second quarter of 2016 and is expected to be complete in May 2019.
The Government of Egypt and the Kuwait Fund for Arab Economic Development have signed a loan agreement of $98.6M for the construction of five desalination plants in Southern Sinai, Egypt.The project will aim to meet the demand for potable water in some towns in the South of Sinai, as well as in existing residential settlements, and other settlements due to be established, in the Sinai Peninsula.The five plants will process water from the Red Sea and other related works.One of the plants, to be located in the town of El Tor, will have a daily capacity of 20,000cb m, while the other four plants, to be located in Ras Sidr, Abu Zenima, Dahab and Nuwaiba, will each have a capacity of 10,000cb m per day.The development includes the supply of electricity to the plants and the installation of pipelines with a total length of about 42km and diameters ranging between 500–800mm for transmission of the desalinated water to storage tanks, and pipelines with a total length of about 183km and diameters ranging between 200–500mm for transmission of water from the tanks to the nearby settlements.Additionally, it will also involve the construction of eight pumping stations and the necessary networks for distribution of water inside the settlements. The project is expected to be complete by the end of 2019.
The ATAL-Degremont-China Harbour joint venture has secured a HKD$3.14bn ($404M) contract from Hong Kong’s Drainage Services Department for the first phase of the San Wai Sewage Treatment Works (STW) upgrade.The project will use the latest sedimentation technology, which is more efficient than conventional clarifiers and requires less space, saving almost 40% of the land. It will also deploy the BIM technology to visualise the plant’s design with 3D images.Drainage Services Department director Edwin Tong said: “The project comprises the design and construction of sewage treatment facilities with a daily treatment capacity of 200,000cb m to cater for the projected additional sewage flow due to development needs in the Northwest New Territories after 2020.“The works will also upgrade the treatment level of the STW to the chemically enhanced primary treatment level with ultraviolet disinfection facilities for reducing pollution loads to the northwestern waters.”Upon completion of construction works in 2020, the joint venture will undertake the operation, repair and maintenance of the STW for a contractual operation period of 15 years.
Dubai’s Roads and Transport Authority (RTA) has awarded an AED703M ($191.3M) contract for phases 4 and 5 of the Dubai Water Canal Project.Phase 4, which will cost about AED307M ($83.5M), is part of infrastructural works for property development on both sides of the canal, including roads and utility lines.Estimated to cost AED396M ($107.8M), phase 5 will link the Business Bay Canal with the Dubai Water Canal and terminate at the Arabian Gulf.The canal stretches 3.2km from the Business Bay Canal up to the Arabian Gulf via the Sheikh Zayed Road, Al Wasl Road and Jumeirah Road.The scope of the work will include the construction of quay walls using precast concrete slabs along the stretch of the canal, the completing and diverting of utility lines and key services, and the removal of impacted services.It will also include the treatment of hyper-saline water from the Business Bay Lakes, the removal of sand barriers in the course of the canal, and the construction of three marine transport stations.RTA’s director-general and chairman Mattar Al Tayer said: “Projects to be constructed on the waterfront will be served by modern water transport means, and result in improved quality of water in the Dubai Creek.”Both phases of the project are expected to be complete by the end of September.
Barratt is partnering with Segro to develop Enfield Council’s £3.5bn Meridian Water redevelopment in Enfield, UK.The project includes the construction of 10,000 homes, a new water station and a full range of neighbourhood facilities.The Meridian Water site has already been given the housing zone status, allowing the development team to provide new housing in less time.Barratt London will lead the residential portion of the development, while Segro will create the urban logistics and industrial space.Segro's business unit director for Greater London Alan Holland said: “Being selected as the development partners with Barratt London for the regeneration of Meridian Water is great news.“We have a longstanding relationship with the borough with a number of industrial schemes already up and running, bringing real jobs to Enfield and the wider region.“We have a proven track record in delivering successful places for business to thrive, creating employment opportunities and helping attract inward investment to the area helping to create a sustainable community alongside the residential offering.”
US-based services firm CH2M has secured design-build contracts for two infrastructure projects in Texas and California.They include the $1.2bn Northeast Water Purification Plant Expansion (NEWPP) project in Houston and the $85M Cogeneration Facility project in San Jose, California.The NEWPP project will be delivered by the Houston Waterworks Team, a joint venture between CH2M and CDM Smith, over the next nine years.Under the contract, the team will be responsible for designing and constructing a new water facility, start-up, commissioning and operating activities. The project also includes the expansion of the city of Houston's existing NEWPP from 80mgd to 320mgd through two construction phases.CH2M has also been tasked to design and construct the new cogeneration plant at the San José Santa Clara Regional Wastewater Facility.The scope of the project involves a new digester gas treatment system, a control system and monitoring system with connectivity to the Wastewater Facility's Distributed Control System, electrical switchgear, a new digester gas pipeline and natural gas pipeline, new heat recovery systems, and civil work including parking areas and utilities.