Sea outlet - discharge of stream water into the Gdańsk Bay part 2, Sopot, Poland
Sea outlet - discharge of stream water into the Gdańsk Bay part 2
Sopot, a seaside city and spa resort, is a tourist destination, which together with the neighbouring Gdańsk and Gdynia, form the Tri-City conurbation with a population of over one million. This health-spa and bathing resort town has attracted visitors ever since its first spa opened in the 16th century. Ever since then, the rich and famous have built their mansions in Sopot. It also attracts investors. Intense development is taking place on the waterfront, with new spa resorts and luxurious hotels being built. Like any other tourist destination, Sopot needs to invest in infrastructure to protect the environment.
Construction of a marine outfall is the first and most vital stage of a larger project called “Protection of Gdańsk Bay waters – construction and modernisation of the storm water drainage system in Sopot”. Two separate collecting systems "A" and "B" are created for Sopot streams and two double-pipe discharge pipelines are installed deep into Gdańsk Bay, 345 – 375 metres away from the outfalls located on the beach. In 2009 Uponor Infra delivered PE WehoPipe dn1600mm PN6 SDR26 pipes for discharge pipelines and WehoPipe pipes of diameter 1200 ÷ 1600 mm for land part of the piplines for the project.
The second Project entitled “Protection of Baltic coastal waters -NEFA BALT II" included among others the construction of outlet system “C” discharging water from Sopot stream into the Gdańsk Bay,consisting of the land part pipeline of the length of 407,5m and two discharge pipelines of the length of 375m each. In 2012 Uponor Infra delivered for that Project: PE WehoPipe dn1600mm PN6 SDR26 pipes.
Uponor Infra also supplied a wide range of non-standard inspection chambers, sedimentation chambers and special fittings. The contract also obliged the company to provide welding machines and installation crew, who made most of the joints.
Having been manufactured in the Uponor Infra factory in Kleszczów near Bełchatów, the pipes were transported to the construction site in 15-metre segments, which were joined by butt welding on the Sopot beach. These several tens of metres long welded, ready-to-install segments were then moved to the construction site and lowered into trenches. In the trenches, individual segments were connected with one another using flange joints.
The pipeline project also included inspection and sedimentation chambers, which were made – as prefabricated components – of pressure pipes with eccentric manhole risers (inspection chambers) or symmetrical ones with straight stubs (sedimentation chambers).
Two discharge pipelines with the length of 375m each and diameter of DN/OD 1600 mm were butt welded directly next to the river Martwa Wisła (Dead Vistula).The pipelines were then fitted with end closures, ballasted with reinforced concrete weights and towed by tugboats to Gdańsk Bay. The trenches had been dug in Gdańsk Bay and water was pumped into the pipelines in order to sink them. The last installation phase was under water and involved joining the pipelines with outlet chambers and receiving tanks, which connect outlets with the pipelines installed on the beach. In spite of periodically unfavourable weather conditions, the whole operation was smooth and easy. The installation phase of the project was finished in the end of 2012.
Excellent properties of PE pipes
Polyethylene pipes are flexible, which makes them easily adaptable in various soil conditions and increases their resistance to vibrations, load and soil movement. Due to their low weight, PE pipes are easy and quick to install. They can be manufactured in considerably longer lengths than traditional pipes, which significantly shortens the installation time. What’s more, polyethylene pipes have superior chemical resistance and don’t corrode, which is a key factor when it comes to applications in salt water. Therefore, PE-HD pipes are the perfect solution for marine projects.
Municipality of the city of Sopot
Consortium of comapnies: Hydrobudowa S.A. Gdańsk/PRCIP Sp. z o.o. Gdańsk
Uponor tryckrörssystem Profuse i Borås Stad
Storsatsning vid Skånes universitetssjukhus i Malmö
Testinstallation av infrakulvert med stor potential
Starkt, säkert och flexibelt
Innovativt - Pålitligt - och installerad på 11 dagar
Uponor markavloppssystem Ultra Rib 2 i Kungälv
Säkert och Hållbart
Fokus på framtida hållbarhet
Weholite installerat i Valdemarsvik
Uponor Vault renar dagvatten
ProFuse installerat i Borås Stad
Första installationen av Ultra Rib 2 Blue
Plastic ensures condensation-free ventilation at new hospital and research facility
Pump structure secures stormwater system’s long life
Drinking water passing through contaminated area in Thisted
Intake pipeline for seawater in Copenhagen Harbour
Butt welding by night of 900 mm pipes ensures stable operation of a district cooling solution in Copenhagen Harbour.
Heavy-duty pipe for Tallinn’s district heating network
PE pressure sewer system from Harjavalta to the city of Pori
New Uponor IQ –Storm water system - Sustainability and Quality in Road Infrastructure
Ultra Double replace concrete pipe line in Raahe
ProFuse pressure pipe line provides drinking water to cottage owners in islands near by Uusikaupunki
Environmental friendly heating and storm water systems in new Launonen day-care centre
New water pipeline
Now that’s truly FAST
Handling storm water in a smart way
Secure tunnel trunk lines
Life is grand for graylings in the pure waters of Ounasjoki River
Europe’s largest ever plastic culvert goes to Norway
Don’t count on luck to protect you from flooding
Urban runoff under control – quickly and easily
Relining to the rescue in Kajaani
Clean drinking water for 17,000 scouts
Iisalmen Vesi renovated a trunk line by relining
To rebuild an office building located in the heart of Amsterdam into 150 appartments in a relatively short time is definitely a big challenge.
Weholite limits overflows and pollution in London
Fighting against an ecological disaster in a world-record time
Rapid action was critical when a sewage collector broke in Warsaw, Poland, causing a massive waste spill into the Vistula River. Uponor Infra’s crew worked 24 hours a day in order to stop the pollution of the river. A temporary pipeline was produced, delivered and connected in just eight days.
Sewage pipelines to sewage treatment plant - HDD method
Collectors for sewage treatment plant
Renovation of reinforced concrete sewer - relining method
Sewage retention chanel
Renovation of cast iron water supply pipeline - swagelining
Thanks to swagelining technology, it was possible to carry out most of the water line modernisation works in the centre of the city of Łódź, in a built-up area, along traffic lanes with heavy traffic of motor vehicles and trams.
Renovation of damaged stoneware collector – cracking/short relining
Sewage separation system
Construction of storm water collectors in Nowe Polkowice is one of the stages of a big investment concerning the drainage of the district.
Sea outlet of treated wastewater
A sea outlet of treated wastewater was initiated in Swarzewo. It is yet another of the many environmentally friendly projects that have recently been carried out in Poland where PE pipes were used.
Hybrid solutions for storm water management
City of Lahti is building new neighborhood called Ranta-Kartano. While they were constructing basic infrastucture the city saw the possibilty to reserve some ground space for storm water management. Now there is a test running for different kind of storm water management. Uponor is involved with new type of storm water filter.
An easy and reliable storm water solution
Flow measurement reveals leaks in the water supply network
Fire wastewater safely recovered
Water treatment plant
Quick installation in the Konotopa channel
Weholite tanks have multiple uses
Water supply in very demanding terrain in Norway
A smart retention system for an anti-flooding solution
September 2018 saw the launch of the project for a stormwater drainage system in Rzeszów, almost 26 kilometres long, in the residential District of Budziwój, which partially coincides with the floodplain of the River Wisłok. One of the elements of this system is the retention canal. The project, scheduled for delivery by May 2020, will help to finally solve flooding problems which have been plaguing the residents of this region of Poland.