The Tuen Mun–Chek Lap Kok Link (TM–CLKL) is a road project between the Northwest New Territories and Hong Kong – Zhuhai – Macao Bridge, the Airport and North Lantau.

The total length of the road is around 9 km, consisting of two elements which are the Northern Connection and the Southern Connection.
The Northern Connection will join Tuen Mun Area 40 to Hong Kong Port through an undersea tunnel, while the Southern Connection will link the Hong Kong Port and North Lantau Island on viaducts.

Dextra supplied 100,000 Bartec rebar couplers for the structure of diaphragm walls and tunnels.

Full-performance Bartec couplers are an optimal replacement for rebar overlapping, reducing both cost of material and rebar congestion at the lap zone.

Moreover, to avoid rebar congestion in the ventilation building structure, more than 50,000 Headed Bars were applied at the top of the columns. Headed Bars act as a substitute for hook and long development length with more simple and effective anchorage.

The Southern Connection was opened in October 2018. The project is expected to be fully commissioned by 2020.

Pumarejo Bridge is a 3,200m-long bridge including an 800m-long cable-stayed section and 1,300m of viaducts as well as access roads.

The new cable-stayed bridge is located over the Rio Magdalena river in Barranquilla and the Salamanca Island Road Park in Sitionuevo, Colombia.

It replaces the old Puente Pumarejo: with its two lanes, the old bridge was no longer doing justice to the increased traffic, and it quickly became an obstacle for shipping on the Rio Magdalena due to a clearance below of only 16 meters.

The new bridge comprises of 6 lanes of traffic (3 lanes each way), 2 side bike paths and a pedestrian path along its side.

Dextra provided rebar connection solutions that were designed to reinforce the concrete structures.

More than 120,000 Rolltec couplers were provided for pier and deck reinforcements.

In addition, over a thousand of Unitec bolted couplers were applied for the connection rebars without the need of threading.

Since its completion, it became the longest road bridge in the country and one of the largest in Latin America.

Source of images: https://www.khl.com/international-construction/colombias-longest-road-bridge/139582.article, https://commons.wikimedia.org/wiki/File:Puente_ pumarejo.jpg

Thane-Kalwa Creek Bridge is a nearly 2.4-km long U-shaped road bridge over the Thane creek at Kalwa Naka, India, aiming to ease the traffic congestion between Thane and Navi Mumbai along with congestion in Kalwa and Thane city areas.

Dextra delivered more than 20 sets of Tension Rod system in various lengths (maximum length supplied is ~24m), size M108, grade 700, used as suspenders for basket handle bridge/steel arch bridge.

Tension Rods typically act as bracing or suspension elements and provide the benefits of high strength, length adjustability, ease of installation as well as the ability to be post-tensioned after installation. A wide range of sizes and accessories in various steel grades and in both carbon and stainless steel is available.

The bridge was originally scheduled to be opened in 2020, but the pandemic and the subsequent lockdowns significantly delayed the construction.

The Braila-Tulcea Bridge is an under-construction road suspension bridge over the Danube river, between Braila, a major city in the east of Romania, and the opposite bank of the river in Tulcea County.

It will be the first bridge over the maritime sector of the Danube river, which will improve road traffic accessibility of the Galați-Braila area to Constanța and Tulcea, and connect Moldavia and Dobruja regions.

The suspension bridge will have a main span of 1,974m, two side spans of respectively 490m on the Braila bank of the river and 365m on the Tulcea bank of the river, along with two access viaducts of 110m length on both sides, and a connecting road with a total length of approximately 23km.

Dextra supplied 280,000 Bartec rebar couplers for the reinforcement of the suspension bridge structure.

Bartec coupler is compliant with seismic design under ISO 15835 category S2. It can withstand tension and compression of large deformation in case of violent earthquakes.

The construction of the bridge is anticipated to be completed in 2023.

Being the new fast-tracks linking the Center to the East of Thailand, the construction of Bang Pa-In – Nakhon Ratchasima Motorway is therefore considered one of the country’s major infrastructure projects.

The main purpose of this project is to stimulate the country’s economy. When completed, it will connect Thailand’s major urban centers within the Greater Mekong Sub-region.
The Intercity Motorway includes two sections: the six-lane 103-kilometer section from Bang Pa-In to Pak Chong, and the 93-kilometer four-lane from Pak Chong to Nakhon Ratchasima. Having been started in 2016, the project is planned to last until 2020.

The project’s required completion period of 4 years being challenging, the construction of the motorway has been divided into approximately 40 contracts to accelerate the project’s schedule.
To minimize potential impacts to local residents, a number of underpasses, overpasses and elevated structures (e.g. large viaducts) are provided throughout the Bang Pa-In – Nakhon Ratchasima Motorway.

Optimize the infrastructure project with Dextra’s rebar couplers

For the construction of the motorway’s elevated structure, the contractors of different packages opted for Dextra’s full performance Bartec rebar couplers to save time and money on the mechanical connection of the diameter 20mm to 32mm reinforcement bars.
Thanks to Bartec’s unique splicing system, all applications (Standard/ Position) can be fulfilled by one and only model of rebar coupler, reducing inventory management of the project to a minimum.
Further to this, Dextra’s Sonitec sonic tubes were also installed for cross-hole sonic logging tests in the foundations of the Bang Pa-In – Nakhon Ratchasima Intercity Motorway structures.

Dextra’s post-tensioning bars for the Motorway’s elevated structures

In addition to Dextra’s splicing and cross hole logging solutions, both smooth and fully-threaded Post-Tensioning bars were also used for both temporary (lifting and launching girder assembly) and permanent applications in segments. Approximately 28,000 sets of both PT bars have been delivered as per June 2018.
For more information about Dextra’s solutions in Thailand, please contact our Bangkok office.

The construction of Binh Khanh Bridge is a part of Vietnam’s Ben Luc – Long Thanh Expressway project, which will run through Ho Chi Minh City and southern Long An province and involves the construction of 58-kilometer long roads.
Being started in 2016 and scheduled to be in service within 2020, the main purpose of this project is to develop the country’s transport facilities for fast vehicles.
To ease the construction of this 58-km long expressway, the project owner Vietnam Expressway Corporation has divided the project into three phases: the western, the middle, and the eastern sections.

Smooth and Fully-threaded PT bars: post-tensioning solutions for bridges and viaducts

For the construction of the 3-kilometer long Binh Khanh Bridge, which is part of the middle section, Dextra has supplied smooth and fully-threaded post-tensioning bars have been delivered. These have been used in the main structure, the stay cable, as well as the bridge’s western and eastern approaches.

For more information about our solutions in Vietnam, please contact our Bangkok office.

The six-lane extradosed bridge over the Ganga River in Prayagaraj will span for 9.9 kilometers, with the main bridge covering 3.84 kilometers and the approach segment covering the remaining distance.

The 3.84-kilometer stretch would include 67 pillars and 17 pillar foundations. Also, of this 3.84 km, the span of 860 meters will be extradosed bridge, and the rest will be a precast segmental bridge with a span of 50 meters.

Dextra supplied 20,000 Sonitec tubes, an easy-to-assemble and time-saving tube solution used for the CSL (crosshole sonic logging) testing of foundation piles to determine the structural integrity. The tubes were installed in piles that were 30 to 36 meters deep and had a diameter of 1.2 meters.

The bridge will start from the Pratapgrah road, gain height to over cross the existing Y-junction (going towards Lucknow) and would then cross the Ganga from Kacchar area spanning over Beli village before ending at Stanley Road. It is expected to be in operational in 2024.

The New Storstrøm Bridge is a testament to Denmark’s commitment to improving transportation infrastructure and connecting the country’s islands more efficiently. Stretching over the Storstrømmen strait, this bridge will replace the aging Storstrøm Bridge, which has served as a vital connection between the islands of Zealand and Falster since 1937.

The New Storstrøm Bridge is designed to accommodate not only vehicular traffic but also pedestrians and cyclists. Its innovative architecture and engineering are set to reduce travel time, improve safety, and provide a reliable link between these two major Danish islands.

Dextra, with its expertise in engineering construction solutions, has supplied 120,000 Rolltec couplers and headed bars for connecting pile reinforcement cages. These components are essential for the construction of the bridge’s foundation, ensuring that the piles are securely interconnected to support the immense weight and forces the bridge will experience during its lifetime.

In addition to our contribution to the bridge’s foundation, we have also supplied Unitec couplers for repair applications, connecting installed rebars with no threads. With Dextra’s contributions, this bridge will serve as a lifeline between Zealand and Falster for generations to come, connecting people, communities, and opportunities.

The Nanay Bridge is a 2.2km bridge crossing the Nanay River, north of the city of Iquitos, Peru.

The bridge will connect the district of Bellavista on the right bank of the Nanay River with the district of Santo Tomas on the left bank.

With a population of almost half a million people, Iquitos is the largest city in the world that cannot be reached by road – tucked in the Peruvian Amazonia jungle, it is currently accessible only by river and air.

Thanks to this project, the city will finally be connected with the rest of the Loreto Region.

The main structure is a cable-stayed bridge with a main span of 242m and total length of 424m. The approach structures are 1.2km long on the right bank of the river, and 320m long on the left bank of the river.

The bridge carries two lanes of traffic and two pedestrian walkways. The roadway has a total width of 12m, and each pedestrian walkway is 1.2m wide.

It uses light-weight composite steel concrete to minimize the use of concrete and to reduce loads transferred to the foundations.

For this project Dextra has supplied 100,000 Bartec couplers for rebar connection and 30,000 headed bars for shear reinforcement of the anchors.

Once completed, it will be the longest bridge in the Country.