Initially, the idea to form an executive company within the KZN Bieżanów Group was related to tram permanent ways. With this in mind, the External Works Division was established, which later evolved into KZN Rail. Our comprehensive approach to tram track systems has been and still remains our business idea and advantage. This means providing fully professional design, production, logistics and installation of these complex structures. From switches, turnouts and crossing, we transitioned seamlessly to a comprehensive offer that covers renovations, major upgrades or construction of new tram line sections. Our positive contribution to the development of this branch of urban transportation can already be seen in Kraków, Bydgoszcz, Olsztyn, Toruń, Wrocław or the Upper Silesian urban area. Today, the company offers comprehensive services within the scope of tram tracks construction and retrofitting for both 1000 mm and 1435 mm gauge.
Our offer for tram infrastructure includes
- Construction of tracks and junctions with aggregate ballast:
- continuous and point grout on the concrete substructure
- the so-called “floating rail” in prefabricated slabs
- tracks in the so-called “Hungarian” slab
- junctions installed in prefabricated slabs >>> CONTRACK
- Construction of tracks and junctions with aggregate ballast on pre-tensioned concrete and wooden sleepers and switch sleepers
- Construction of tracks and junctions in various installation variants: asphalt pavement, concrete pavement, paving stone pavement, aggregate or the so-called green tracks
- Conducting the works within the scope of accompanying industries (track drainage, overhead contact system, power engineering and turnout heating)
- Disassembling old track systems and substructures
- Construction of substructure layers, drainage and track-related infrastructure
- Laying turnouts in accordance with the designated geometric points
- Thermite and electric welding of rails and turnouts, along with flaw detection tests >>> SEE MORE
- Grouting with flexible materials and hot pouring of rails and filling the gaps between slabs
- Installation of straight tracks on concrete substructure or sleepers, including the delivery of permanent way
- Comprehensive repairs of junctions, closed and separated tracks in any technology
- Rental and installation of temporary turnouts for the duration of track works >>> SEE MORE
See our tram infrastructure
Have any questions? Contact us
Selected realizations
Łódź
Tracks alteration in Przybyszewskiego Street in Łódź
As part of the works performed under the title “Low-emission urban transport program – construction of road and tram viaducts in Przybyszewskiego Street in Łódź and track alteration in Przybyszewskiego Street in the section from th...
Kraków
Extension of Kocmyrzowska Street on the section from the junction with the S7 expressway in the area of the intersection with Darwina Street and Podległych Street in Krzesławice to plot no. 513 cadastral district 11 Nowa Huta in the area of Bukszpanowa St
On 24 October 2024, a technical run was carried out on the tram tracks at Kocmyrzowska Street in Kraków, which completed the first stage of alteration of the base of ballast from Darwina Street to the Wzgórza Krzesławickie tram terminus...
Ruda Śląska
Track, catenary and accompanying infrastructure modernization at the Chebzie terminus in Ruda Śląska – stage II
As part of the investment task entitled “Track, catenary and accompanying infrastructure modernization at the Chebzie terminus in Ruda Śląska – stage II” performed in cooperation with “NJN” Damian Kłosek, KZN Rail Sp. z...
Gdańsk
Delivery and installation of two tram turnouts with manual control mechanisms together with delivery and replacement of tracks at the Tram Depot Gdańsk-Nowy Port
For the Gdańskie Autobusy i Tramwaje we carried out the investment task entitled: “Delivery and installation of two tram turnouts with manual control mechanisms together with delivery and replacement of tracks at the Tram Depot Gdańsk-Nowy Port...
Łódź
Construction and alteration of a tram line at Wojska Polskiego Street in the section from Franciszkańska Street to Strykowska Street, together with the alteration of the road system and necessary infrastructure, as well as construction of a tram connectio
As part of the task at Strykowska Street in Łódź we performed the following works in October 2023: - laying of 165 meters of single track on pre-stressed concrete sleepers, along with adjustment and tamping, - laying of 113 meter...

Olsztyn
Expansion of the MPK tram depot at 40 Kołobrzeska Street in Olsztyn
In autumn 2023, the expansion of the tramway depot at 40 Kołobrzeska Street in Olsztyn was completed, including the construction of a depot building, a garbage dump, a tank for sanding up, a water treatment station for the washing station, roads, tra...
Śląskie
Alteration of the base of ballast on Piekarska Street in Bytom along with Sądowa Street in Bytom
Alteration of the base of ballast on Piekarska Street in Bytom along with Sądowa Street has ended. The project included the complex renovation of about 1,780 meters of single track. The vast majority of the work was carried out with the ERS...
Chorzów
Modernization of the tram terminus Stadion Śląski Pętla Wschodnia in Chorzów
On behalf of Tramwaje Śląskie S.A. with its registered seat in Chorzów, KZN Rail performed a task entitled: “Modernization of the tram terminus Stadion Śląski Pętla Wschodnia in Chorzów”. The works were ca...
Wrocław
Replacement of turnouts in the turnout junction at the Borek depot in Wrocław
At the entrance to the Borek Tram Depot in Wrocław, we performed the following works for the General Contractor – “Zakład Sieci i Zasilania sp. z o.o.” from Wrocław: - installation of track made of 60R2 R260 rails and 60R2...
Katowice
Alteration of the tram track along the Nikodem and Józef Renc route in Katowice
The alteration of the tram track in Załęże district of Katowice included a total of about 1520 meters of single track. As part of it, we performed a comprehensive replacement of the structure, i.e. cement-stabilized soil, substructure layers and trac...
Katowice
Alteration of the tram track in Obrońców Westerplatte Street in Katowice in the section from Korczaka Street to Wańkowicza Street, task no. 11.1
Alteration of the tram track in Szopienice district of Katowice included a total of about 1179 meters of single track. As part of it, we performed a comprehensive replacement of the structure, i.e. cement-stabilized soil, substructure layers and trac...
Sosnowiec
Construction of a tram line in the Zagórze district from the tram terminus to the John Paul II roundabout in Sosnowiec – Task 1
The works included the construction of 3500 meters of double track including two tram termini with a catenary and five new tram stops. For the construction of the new permanent way we used: over 700 tons of rails ov...
Kraków
Comprehensive installation of crane runway rails at the WKS paint shop in Kraków – stage II
In August 2022, on the premises of the Steel Structure Works in Kraków, we performed a comprehensive crane runway installation with a length of 128.8 lin. m on commission from Mostostal Kraków. The scope of the works included:...
Zabrze
Alteration of the tram infrastructure along Bytomska Street in Zabrze from Zamkowa Street to Szyb Franciszek Street
“Alteration of the tram infrastructure along Bytomska Street in Zabrze from Zamkowa Street to Szyb Franciszek Street, together with the Biskupice terminus and turnouts” – task 6.2 The alteration covered 2268 meters of single trac...
Bytom
Modernization of the entrance junction to the Łagiewniki Depot in Bytom
On behalf of Tramwaje Śląskie S.A. with its registered seat in Chorzów, KZN Rail performed a task entitled: “Modernization of the entrance junction to the Łagiewniki Depot in Bytom.” The works were carried out from 1 D...
Toruń
Modernization of the tram track in the section from Niepodległości Square to Reja Street in Toruń
Between 15 March 2021 and 30 November 2021, we carried out works under the task “Modernization of the tram track and catenary on the route of no. 2 line in the section from Niepodległości Square to Reja Street” in Toruń. ...

Kraków
Nowa Huta Tram Service Station in Kraków
The Tram Service Station in Nowa Huta was officially handed over for operation in January 2022, while the first works on site began in 2015. The construction was divided into stages, and the entire modernization cost more than PLN 134 million. ...
Wrocław
Renovation of the tramway track at Żmigrodzka Street – Wrocław
On behalf of the Miejskie Przedsiębiorstwo Komunikacji sp. z o.o. with its registered seat in Wrocław KZN Rail carried out a task entitled: “Renovation of the tram track at Żmigrodzka Street from the intersection with Broniewskiego Street to th...
Wrocław
Renovation of tram tracks in Al. Gen. Hallera – Wrocław
On behalf of the Miejskie Przedsiębiorstwo Komunikacji sp. z o.o. with its registered seat in Wrocław KZN Rail carried out a task entitled: “Renovation of the tram track in Al. Gen. Hallera from the intersection with Mielecka Street to...
Chorzów
Installation of single track turnouts, hand drives and internal welds of the turnouts
From 12 August 2013 to 21 October 2015, we carried out works for Balzola Poland S.A. as part of the project “Modernization of the track system on the premises of the Service and Repair Plant in Chorzów – alteration of the turnout s...

Olsztyn
Tram depot in Olsztyn
Between 7 February 2014 and 7 August 2015 we, as a Consortium Partner together with Budimex, the Consortium Leader, carried out a task for the Olsztyn municipality with a total value of works of more than PLN 88 million.
Toruń
Alteration of the tramway track to improve the transport accessibility of the Old Town Complex in Toruń and the construction of an interchange at Toruń Miasto railway station
On behalf of Budimex Sp. z o.o., we started works under the project entitled: “Integration of the urban transportation system and the purchase of tram rolling stock in Toruń – BiT City”. The task was performed in the period from 18 ...
Toruń
Implementation of a “design and build” investment – tram route to the Nicolaus Copernicus University in Toruń
The tram route to the Nicolaus Copernicus University in Toruń was performed in the period between 17 April 2013 and 31 May 2014. The total value of the works amounted to nearly PLN 15 million.
Kraków
Alteration of the level crossing at the intersection of Srebrnych Orłów and Wiślicka Streets in Kraków
Between 28 November 2013 and 19 December 2013, together with PROGREG Sp. z o.o. we carried out a task for the Municipal Infrastructure and Transport Board in Kraków (Zarząd Infrastruktury Komunalnej i Transportu w Krakowie, ZIKiT). The gross v...
Bydgoszcz
Alteration of turnouts at Klaryski junction in Bydgoszcz
Works as part of the task were conducted from May to October 2013. The total value of works carried out for both the basic and additional part amounted to almost PLN 5,000,000.
Gorzów Wielkopolski
Alteration of Kostrzyńska Street
Acting as a subcontractor for Budimex, we participated in the modernization of Kostrzyńska Street which is crucial for urban public transport in Gorzów Wielkopolski. All the works carried out by our company as part of this investment included...
Czeladź
Modernization of the track at Kombatantów Street in Czeladź
The works were completed between 7 April 2020 and 31 May 2020 and included: Installation of a base of ballast made of 60R2 rails on pre-stressed concrete sleepers on the sublayer with profiling and tamping– 428 meters of single track. Ins...
Zabrze
Alteration of the tram infrastructure along Bytomska Street in Zabrze
Alteration of the tram infrastructure along Bytomska Street in Zabrze from Zamkowa Street to Szyb Franciszek Street, together with the Biskupice terminus and turnouts. The task includes the modernization of one kilometer of double-track line separ...
Raniżów
Modernization of the Katowice – Rondo junction
We carried out an investment task in the “design and build” formula entitled: “Modernization of the Katowice – Rondo junction” for Tramwaje Śląskie S.A. The total value of the investment task amounted to nearly PLN 7....



