Civil engineering & infrastructure at PORRThe basis for modern cooperation
Contact persons
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Civil engineering projects are not always obvious at first glance. They are often integrated into larger buildings and are located below or on the surface of the earth. And yet special civil engineering, road construction, structural engineering and tunnelling as well as hydraulic engineering, sewer and pipeline construction form the basis for our daily interactions. Wherever people live together, be it in the city or in the countryside, our civil engineering services provide the structures they need. Infrastructure is the foundation underpinning today’s society. Every day, people use a wide variety of transport routes and facilities, work and live in public and private buildings, and are supplied with energy. We build to create these resources and connections. We build for the future.
Areas in civil engineering & infrastructure
Areas in civil engineering & infrastructure at a glance

Railway construction
As a full-service provider in railway engineering, we are safeguarding the transport of tomorrow.

Bridge construction
We connect living spaces and rely on both tradition and innovation when doing so.

Rock technology
We ensure peace of mind even in the steepest locations through our reliability, versatility and flexibility.

Structural engineering
We design and realise unique structural engineering projects with technical excellence and individual solutions.

Power plant construction
We play an important part in producing and supplying clean energy.

Pipeline construction
We provide the basis for modern living with electricity, gas, water, sewage, telecommunications and district heating lines.

Special civil engineering
We provide the right foundation for every construction project.

Road construction
We cover every aspect of road construction from a single source – while using sustainable technologies and methods that conserve resources.

Tunnelling
We overcome every obstacle with experience, expertise and innovation.

Hydraulic engineering & harbours
rom coastal construction to flood protection through to groundwater clean-up – water is our element.

Civil engineering expertiseInfrastructure from a single source
As a powerful partner and full-service provider, PORR provides every service across the entire value chain of civil engineering and infrastructure from a single source. Whether it’s a new build, maintenance or upgrade, at home or abroad. Special geological conditions, existing pipelines or other relics from times gone by demand a flexible and solution-oriented approach. We rely on the expertise, flexibility and ability of our staff to solve technical problems as well as the technical innovation and versatility of our processes.
PORR also has a remarkable array of equipment and resources at its disposal including gravel pits and quarries. This facilitates a broad range of applications, while the high levels of in-company competencies also reduce dependency on subcontractors. What’s more, the planning and execution of large-scale or complex special civil engineering projects, such as those for bridges or high-rise buildings, can be professionally fulfilled by PORR as a one-stop shop.
Delivering the best solutions in civil engineering and infrastructure takes comprehensive expertise, absolute reliability and maximum flexibility. PORR meets all these requirements thanks to its many years of experience and highly trained staff.

Essentially, the railway construction division covers the new build, maintenance and refurbishment of track and points systems, railway infrastructure, and the construction of turnkey railway lines.
PORR draws on its international experience in this field and plays a key role in a wide range of projects involving rail networks at home and abroad, urban transport networks, trams and underground systems, as well as industrial rail links. The slab track system – Slab Track Austria – developed by PORR in collaboration with ÖBB is used internationally in Austria, Germany, the UK, the Czech Republic, Slovakia, Slovenia and Qatar – to the complete satisfaction of clients and passengers alike. It is characterised by its ability to ensure a precise track layout with outstanding dynamic and structure-borne noise properties – delivering maximum quality and accuracy with minimal maintenance requirements throughout its entire service life.
The wide range of services also includes tunnel and transport engineering, as well as the associated maintenance and repair work. This covers everything from electrical installations, traffic safety and lighting systems to ventilation and cooling systems, as well as information technology. The experienced team at PORR Verkehrstechnik advises, analyses and successfully implements your project.
References
Passanger railway stop Przylasek Rusiecki (line no. 95, Kraków)
Special competencies
Slab track on the bridge over the River Arges
Civil engineering & infrastructure
Gütsch railway subway, Lucerne
Modernisation of the tram in Reșița
Special competencies
Austrian slab track technology for Australia
Civil engineering & infrastructure
Slab Track Austria for the upgrade of the Maribor-Šentilj railway line
Bucharest - Giurgiu railway line
Rehabilitation of tram lines on Cetății Boulevard, Timișoara
Koralm tunnel expansion with Slab Track Austria technology
Infrastructure measures SBB Zugersee Ost, structural work
Tramway Stefan cel Mare
Harmanli–Svilengrad railway line
Vinohradská–Želivského tram line
Renovation of the Flora tram line intersection
High-speed railway line Erfurt–Leipzig/Halle (VDE 8.2)
JV Petrobrazi Industrial Platform
Oerlikon integration – Subsection 4.006
Slab tracks Wienerwald Tunnel
Lainz Tunnel
Vienna Main Station
Votice–Benešov rail line
Landeck Inn River Bridge
Alptransit Gotthard Nord
Railway Rehabilitation Campina–Predeal
St. Pölten main station, construction lot 1
Sealing Wienerwald Tunnel
Arlberg railway tunnel
Wienerwald Tunnel
Lehrter Station, Berlin

Bridge construction is still considered the supreme discipline today. We support our customers with the utmost professionalism and precision as a reliable partner throughout all phases of a bridge's life cycle – from planning and construction to maintenance.
We can look back on more than 100 years of tradition in bridge construction and have extensive expertise – not only in new construction, but also in the renovation of existing bridges. PORR's range of services extends from steel and prestressed concrete bridges of all kinds to steel composite and steel bridges, cable-stayed bridges and precast bridges. Whether it's carrying out foundation work in rivers or handling large renovation projects in inner-city road networks with high traffic volumes, we use the experience of our experts and the latest technology to implement complex projects successfully and in an environmentally friendly manner. Most of the materials obtained from demolition or excavation during construction are then professionally processed and returned to the material cycle.
References
Wutach Railway Bridge
Civil engineering & infrastructure
Gütsch railway subway, Lucerne
Drammen Bybru
Securing the Luegbrücke bridge
New construction Gizenenbrücke
Renewal of path subway Wattingen and Strahlloch Bridge
Marina Deck
Civil engineering & infrastructure
Gail Bridge in Egg
Raab Bridge in Gleisdorf
Minnevika jernbanebru
Randselva Bridge
K2 Gotthardstrasse - repair works on bridge Intschialpbach
New construction of Danube bridge Linz
Inn bridge Terfens, A12 Inntal motorway
Rugtvedt – Dørdal
Varodd
Chrutacher bridge over the Waldemme, Flühli
Refurbishment of A4 motorway Küssnacht
Fv17 Liafjellet – Olvikvatnet
Reconstruction of the Jiul passage in Timișoara
Remisenstrasse overpass
Zátaví bridges
Dorfnest overpass
Ciheiului overpass
Civil engineering & infrastructure
Łazienkowski Bridge
Overpass restoration and footbridge construction
Tadeusz Mazowiecki Bridge, Rzeszów
Küssnacht SZ rail underpass
Chärstelen bridge, Amsteg
U Garáží bridge
Tresfjordbrua
S10 Mühlviertler Highway, Construction Section 4.1, Section Bypass System Freistadt
A1 Westautobahn (motorway)
Kasern Viaduct
Replacement of Blatten bridge
Aabachtal viaduct
Votice–Benešov rail line
Sava bridge
Bridge over the Odra River
M6 Motorway Dunaújváros–Szekszárd
Landeck Inn River Bridge
Ausserfeld bridge, Stansstad

PORR SUISSE AG has a working group of specialists in the field of rock technology.
Whether it’s rock clearance, rock stabilisation, various anchor works, nail walls, slope stabilisation, avalanche protection, ice clearance or repairs and installation of rockfall protection systems. With our experienced team, we meet the most demanding requirements for reliability, flexibility and versatility, giving us the ability to carry out instant work of any type.
References
Kantonsstrasse K2b Weggis / Vitznau – Safety measures Sparen
K27 Bristenstrasse, Renovation RBBS 04+115 bis RBBS 12+085
Axenstrasse, rock protection Dornisporn
Rock instabilities K2 Gotthardstrasse
K27 Bristenstrasse, renovation 2020
EP Amsteg – Göschenen, Natural Hazards Lot North (Amsteg-Fellital) and Lot South (Göschenen-Fellital)
K27 Bristenstrasse
Zingel quarry
Gurtnellen power station finishing works
Rockfall protective netting with energy absorption - Gurtnellen Nord
Muotathalerstrasse finishing works, Gibelhorn
Rock face protection, Ölberg, Axen
N2, Intschi 2 Tunnel South and SBB, Reuss bridge South
N02, EP Acheregg tunnel and Lopper viaduct

As a specialist in realising large-scale infrastructure projects involving multiple services, PORR handles complex challenges by applying its comprehensive expertise.
Structural engineering includes, for example, bridges, passageways, subways, tunnels using the cut-and-cover or boring method, earthworks, and engineering structures. Structural engineering also includes traffic routes and everyday infrastructure such as flood barriers, underground railway construction, underground car parks and parking decks.
References
Pupping-Karling Bypass
Harbour Gate Linz
West-East Connection (WOV), Lot East
K27 Bristenstrasse, Renovation RBBS 04+115 bis RBBS 12+085
Axenstrasse, rock protection Dornisporn
K27 Bristenstrasse, renovation 2020
Hauptstrasse 2b Langmatt Gersau–Brunnen
Construction engineering A23 Hochstraße, Vienna-Inzersdorf
Prater junction reconstruction
Project Südgürtel ("southern beltway") Graz
Simmering storage reservoir
Celleswald avalanche gallery
S 10 Mühlviertel Motorway, contract section 3
S10 Mühlviertler Highway, Construction Section 4.1, Section Bypass System Freistadt
Cityring: complete overhaul
Rüteli tunnel roofing
Civil engineering & infrastructure
Hergiswil N2 gantry roof
Civil engineering & infrastructure
Project TITLIS

From small power plants to flood protection structures: As a leading provider in hydraulic engineering, PORR is involved in a wide range of projects in power plant construction, protective hydraulic engineering and dam construction both at home and abroad.
Hydraulic engineering combines a wide variety of civil engineering disciplines. From underground waterproofing, special civil engineering, tunnel construction, earthworks, concrete and road construction to landscape gardening – PORR can carry out the entire range of services with its own specialist staff.

Whether electricity, gas, water, wastewater, telecommunications or district heating pipelines – a close-knit network of pipelines provides the basis for our modern lifestyle and keeps us supplied with the essentials, day in, day out.
This is why pipeline construction is a key component of our service range. Our team of experts builds pipelines for supply, disposal and communication using state-of-the-art technologies. Thanks to our complete coverage and multifaceted expertise, we can deliver individual, environmentally friendly solutions tailored to the local conditions and execute demanding pipeline projects efficiently and safely.
References
A2 South Motorway Pinggau-Allhau
Roterdstrasse 78-86 DN 600 roadheader excavation
Rotenturmstrasse project, cable and gas pipe laying
BVH Altenbergerstraße
Civil engineering & infrastructure
BVH main sewer Oberthan BL 3
Galda Landfill & Waste Treatment Plant
Civil engineering & infrastructure
Aqua Burgenland Sopron drinking water pipeline, Neudörfl to Rohrbach section
Chrudim hot-water pipeline and hot-water transfer station
Melk flood protections
Timișoara North Water Supply & Sewerage Systems
Aquaculture facility
Faget Sewage
Rossatz Flood Defences
Weitendorf gas compression station
Civil engineering & infrastructure
Waste water treatment plant Leibnitz-Wagna-Kaindorf

Every construction project needs a solid foundation – precisely tailored to the respective soil conditions and the planned purpose. Larger construction projects or infrastructure projects are especially in need of specialised solutions. As a full-service provider in special civil engineering, PORR carries out all types of excavation support, slope stabilisation, deep foundations, cut-off walls for flood protection projects, and soil improvements.
We offer all common state-of-the-art solutions and cover the entire spectrum of special civil engineering – from diaphragm walls, sheet pile walls or narrow walls through to solidification, injection sealing and elevation grouting.
PORR’s special civil engineering is characterised above all by the fact that it is unique on the market: for every construction project, we offer a complete, customised solution that takes into account the most diverse customer requirements. Everything is possible, from the execution of classic subcontractor services to “turnkey excavation”. This type of full-service provision enables our clients to reduce interfaces and achieve greater certainty in terms of planning and costs from the moment the contract is awarded.
References
Civil engineering & infrastructure
N4 New Axenstrasse construction lot 301
GTL Oberthan
FH Campus Wien – House of Health Sciences
SAWI Sport Arena Vienna
Infineon WBG H11-H13A Deep foundation
The Marks
Civil engineering & infrastructure
Renovating the anchor walls
Sealing the subsoil at the Feldsee dam at 2,200m above sea level
Civil engineering & infrastructure
Vienna TwentyTwo
Boehringer Ingelheim LSCC+QC
Rezidence Pod Skálou – Special Foundation Engineering
Diaphragm wall in the steelworks
ORBI Tower
Monte Laa – building sites 3 and 5
Renovation of A23 supporting wall in Laaerberg
Celleswald avalanche gallery
Aquaculture facility
Environmental engineering
Remediation of contaminated site K20 in Brückl
Demolition of Südbahnhof Station
Ski lift Gura Humorului
Civil engineering & infrastructure
Project TITLIS

PORR has long been a trailblazer in road construction and infrastructure. As early as the start of the 20th century, PORR played a key role in the construction of Vienna’s Ringstraße as well as in the Grossglockner High Alpine Road in 1930. We build on this extensive experience in every one of our projects. Far beyond Austria, Germany, Switzerland, Poland and the Czech Republic, PORR is now a leader in building transport infrastructure.
From complex large-scale projects and transport infrastructure projects like the construction of motorways, expressways and railways, to small-scale projects such as asphalting pavements and parking areas, we deliver the entire range of transport infrastructure construction with the utmost professionalism.
Here we provide the entire range of road construction services from a single source – from earthworks and unbound base courses to asphalt or concrete road surfaces, including drainage work. With our modern equipment and highly trained specialist staff, we are ideally equipped to meet every requirement.
Road construction of the future is sustainable and conserves resources. The majority of the building materials used are recycled and reused. State-of-the-art asphalt mix plants guarantee the careful use of energy and resources. Advances made in applying digitalisation to road construction ensure effective and cost-saving asphalt paving through cutting-edge software solutions that are constantly evolving.
References
Pupping-Karling Bypass
A2 South Motorway Pinggau-Allhau
Civil engineering & infrastructure
K27 Bristenstrasse - stage 2024, natural hazard measures section Bristen - St. Antoni
Civil engineering & infrastructure
N4 New Axenstrasse construction lot 301
Arad bypass
Rodund vehicle fleet building
Civil engineering & infrastructure
Gütsch railway subway, Lucerne
West-East Connection (WOV), Lot East
Civil engineering & infrastructure
Connection Road DN5
Sibiu-Pitesti motorway, section 1
Spořilovská city ring-road exit
Fv17 Liafjellet – Olvikvatnet
Ciheiului overpass
Tadeusz Mazowiecki Bridge, Rzeszów
Motorway Sebeș–Turda, Lot 4
Rerouting of L 197 Arlberg pass road
Prater junction reconstruction
Project Südgürtel ("southern beltway") Graz
Seetalplatz flood control measures
Muotathalerstrasse finishing works, Gibelhorn
Rehabilitation of DN76, Lot 2
Celleswald avalanche gallery
A1 Westautobahn (motorway)
Kasern Viaduct
Access road to OMV Petrom
Expressway S2, southern bypass of Warsaw, Konotopa – Airport Okecie
Bypass Arad
Sava bridge
Bridge over the Odra River
M6 Motorway Dunaújváros–Szekszárd
Underground constructions such as tunnels, shafts and caverns create infrastructure that is fit for the future – one of the most demanding civil engineering disciplines, which also happens to be one of PORR’s core competencies. Our tunnelling teams can look back on extensive experience and references from the successful completion of tunnel projects for roads, railways, district heating supply, sewage systems and pumped storage power plants. The repair and modernisation of existing tunnels complements our services in our home markets. Expertise, innovative, flexibility and an ability to find technical solutions are an absolute must in underground construction. Every metre excavated can reveal an unforeseeable challenge, which PORR manages professionally and expertly, with safety as the top priority.
From building underground railways in inner-city conditions, conventional tunnelling with shotcrete to highly sophisticated tunnelling with tunnel boring machines: PORR is one of Europe’s leading providers in all areas of underground construction and solves complex challenges with expertise and innovation. A clear focus on lean structures and processes – coupled with the consistent use of digital tools and energy-efficient production equipment – form the basis for cost-effective and innovative project management. As a reliable partner, we have successfully proven our technological expertise in all common tunnelling methods time and again (Gripper-TBM, open-shield, earth-pressure and hydro-shield) and also in large cross-sections from six to 13 metres.

References
Ebensee Pumped Storage Power Station
Renovation of the Arlberg Tunnel
Koralm tunnel expansion with Slab Track Austria technology
Brenner Base Tunnel Contract Section H21 Sill Gorge
Ceneri base tunnel railway engineering
Fv17 Liafjellet – Olvikvatnet
Albulatunnel II - New Construction
Koralm Tunnel, contract section KAT3
Green Line, Metro Doha
S10 Mühlviertler Highway, Construction Section 4.1, Section Bypass System Freistadt
S10 Mühlviertler Highway, Tunnel Götschka
Reisseck II Pumped Storage Power Plant
Biel Tunnel East Branch
H3–4 Münster/Wiesing
Limberg II pumped storage power plant
Wienerwald Tunnel

Water is one of the most precious resources on this earth – and a conscientious approach is a prerequisite for guaranteeing our quality of life in the longer term. Hydraulic engineering encompasses hydropower engineering, river engineering, coastal engineering, navigable waterway construction, flood protection and groundwater remediation.
Another essential factor alongside pure civil engineering skill is the assessment of the ecological impact of hydraulic engineering projects. From small power plants to flood control structures: as a leading provider of hydraulic engineering services, PORR is involved in a wide range of projects in power plant construction, flood protection, and dam construction at home and abroad. Hydraulic engineering combines a wide range of construction disciplines. From subsoil sealing, special civil engineering, gallery construction, earthworks, concrete and road construction to landscaping – PORR delivers the full range of services with its own specialist staff.
References
Harbour Gate Linz
Seetalplatz flood control measures
Protection and rehabilitation of an area of the Black Sea coast near Constanta
Melk flood protections
Modernisation of the Nysa Reservoir
Ostravice drainage tunnel and Šance waterworks
Krems River Flood Defences
Rossatz Flood Defences
Flood protection measures Spitz on the Danube
Project management in civil engineering & infrastructurebuilding for daily life

Increasing urbanisation brings future challenges
Modern infrastructure presents both a challenge and an opportunity. The growth of cities and their populations requires future-proof solutions in light of the infrastructure, environmental and economic developments that accompany this shift. Modern mobility and transport systems must meet the requirements of digitalisation, they must be energy-efficient and generate as few CO2 emissions as possible. The goals are clear: reduce traffic, shift traffic, improve traffic.
As a flexible full-service provider in every facet of civil engineering and infrastructure, PORR offers a comprehensive range that covers every area of the modern construction industry and is aligned towards contemporary requirements. A high degree of in-house value creation, comprehensive expertise, and many years of experience make PORR a skilled partner for realising a wide range of projects.

© PORR/APA-Fotoservice
Focus on the safety of people and the environment
In addition to the requisite knowhow and its innovative problem-solving capabilities, PORR’s top priority is preserving the environment and conserving resources as well as the highest standards of occupational health and safety. State-of-the-art technology and construction techniques are applied when realising projects to ensure the safety of everyone involved. Quality assurance takes place throughout the construction process and as part of the approval phase by means of internal quality assurance procedures.

Efficient planning leads to success
A significant part of civil engineering and infrastructure projects involves structural analysis and planning work, which our specialist staff analyse with pinpoint accuracy and process in a practical manner. Our customers also benefit from our many years of experience in project execution and project management. Our subsidiary PORR EPC GmbH in particular is a reliable partner with extensive project organisation in the areas of engineering, procurement and construction, where the position of project manager is complemented by project management and the Project Management Office (PMO). We think in a networked way, closely involve all project participants and meet even the highest requirements in terms of adherence to deadlines, quality and occupational safety.

Optimising processes through digital innovation
Our goal is to fulfil the individual wishes of our customers and to build structures that are as sustainable as possible. We always guarantee efficient project execution and project management. We develop the right solution for every project to meet the requirements of our clients. And for this we draw on digital advances: from process optimisation in road resurfacing via the use of drones for measuring right through to terrain modelling with excavator deployment based on 3D models.
