Archello Awards 2026 · Enter your projects before 30 September 2026
Archello Awards 2026 · Enter your projects before 30 September 2026

Drainage systems

An overview of projects, products and exclusive articles about drainage systems

Project • By ULMA Architectural SolutionsCoasts

Frente Marítimo de Las Palmas de Gran Canaria

In one of our recent projects, we managed to enhance the overall aesthetics with a concealed drainage system. It is the Las Palmas seafront, in the Canary Islands. The project, by the local architecture firm Romera y Ruiz, is inspired by traditional lateen sail boats and is clearly an homage to them. It is interesting to see how they use their triangular geometry to adapt to the environment with simple and creative forms. Caption Concealed drainage, visual aestheticsFor this inventive project, located on the shore and following the contours of the coast, a concealed drainage system was chosen, which means it passes as inconspicuously as possible. This system stands out at first glance for all the right reasons as it does not affect... More

Project • By ULMA Architectural SolutionsExhibition Centres

MÉCA Bourdeaux

This aesthetic grating has been chosen for the MÉCA, the new cultural centre in the French region of Aquitania. This spectacular building has become an emblem for the city of Bordeaux. This discrete and uncomplicated single slot grating means that it goes unnoticed, making it ideal for places where the drainage solution must not be evident so as not to take away from the beauty of the surroundings, but without losing sight of correct rainwater drainage. Civil F system drainage channels have been supplied for heavy load classes F250K and F300K with the D400 single slot grating and multi V system for intermediate loads with an optimised V-shaped section combined with the D400 single slot grating. More

Product • By GeoplastDRENING

DRENING

DRENING is a modular element for the creation of high capability dispersion and accumulation chambers. The underground collectors for rainwater drainage and reuse prevent flooding and expand underground infrastructure in areas without sewerage systems. Drening is also suitable for creation of basins in limited space of households’ yards.Drening basin calculation is our tool designed to help pre-calculation of underground basins for water storage.Solutions that Drening provides are:- Rainwater dispersion,- Household rainwater harvesting,- Irrigation of public parks,- Drainage and phytoremediation,- Road works water drainage.Learn moreDreningDrening projectsWater solutionsHydraulic invariance: the need to disperse/laminate rainwater... More

Product • By voestalpineMore than just extremely resistant

colofer® robust rain

Based on our many years of experience as a supplier of colofer® for drainage systems we have developed colofer® robust rain. Completely new product specially suited to this area of application The higher layer thickness (35 µm) in comparison with colofer® robust results in additional protection and functionality.This product features increased corrosion protection and can also be used for drainage applications in environments that contain high levels of salt or are heavily polluted by industrial emissions (RC 4). Furthermore, thanks to the higher layer thickness, the protection against mechanical damage has increased to 35 N.We guarantee the highest UV resistance class (RUV 4) for a wide range of colors. The thicker coating layer also allow... More

Project • By ULMA Architectural SolutionsStreets

Sparano street in Italy

The main avenue in the Italian city of Bari, capital of the Puglia region, has been immersed in restoration works. ULMA Architectural Solutions has supplied channels with high hydraulic capacity for rainwater drainage along the entire avenue (800m). Two systems have been chosen: the EUROSELF system and the U system, both with single-slot grating in 30/10 galvanised steel, calibrated for fast, perfect alignment. We can highlight that with the use of this type of grating, the drainage system blends in perfectly with the urban architecture, without affecting the planned aesthetic finish for the street paving. Thanks to the collaboration with the Bari-based company IdrotermSrl, it was possible to guarante... More

Project • By ULMA Architectural SolutionsHospitals

ORLEANS HOSPITAL IN FRANCE

MultiV system channels with single-slot grating have been installed in the area around the hospital.The Orleans regional hospital located 10 km from the centre of Orleans, it has been a great investment for the population of the Centre-Loire Valley region, as it was designed to be the first high environmental quality regional hospital. ULMA Architectural Solutions participated in this project by installing one of its drainage systems in the area around the hospital. The system chosen was the MULTIV+100 model with single-slot grating. The MULTIV system was developed to drain water at higher speed, improving the channel's self-cleaning effect. In addition, as the system is suitable for pedestrian areas, commercial areas an... More

Project • By ULMA Architectural SolutionsHighways

Toll Station on the Motorway

A total of 100 linear metres of KompaqDrain® compact channel have been installed at the toll station on the Motorway, level with the town in Gipuzkoa, Spain. An average of 12,000 vehicles passes through this toll station every day. The installation of this resistant, compact channel was the chosen solution, taking into account the importance of correct water evacuation and safety on public roads.The KompaqDrain® compact channel meets all these requirements. This range is manufactured entirely in polymer concrete, a material highly resistant to compression, shock and wear by abrasion, key factors in areas of high traffic intensity such as toll stations.As it is compact it provides maximum safety, since there is no danger... More

Project • By ULMA Architectural SolutionsUrban Green Spaces

Eco-Neighbourhood

This 60,000 m2 development is located near the city and has a total of 29 homes and land, all with magnificent views and surrounded by nature.KompaqDrain® compact channels have been installed on the access roads to the neighbourhood and to the houses. This channel, with its innovative Max-Flow® system, makes it possible to increase the water speed and its hydraulic efficiency making possible to drain the same volume of water with a smaller channel.In addition, the channel and the grating form a one-piece unit, guaranteeing greater rigidity and security. Thanks to its material, polymer concrete, this channel offers great durability and exceptional resistance.All these aspects make the KompaqDrain channel, unique in t... More

Project • By ULMA Architectural SolutionsOffices

Brasdiesel Headquarters

In addition to the wide range of services traditionally offered to Scania customers, Brasdiesel offers a multibrand service at its new headquarters while centralising maintenance in a single workshop. This new area covers more than 16,000 sqm in Caxias do Sul, RS.The solution chosen for this project was the KOMPAQ200 CIVIL model, part of the compact KompaqDrain® range, the optimal choice for this zone, which is subjected to continuous heavy traffic. The channel and the grille form a single piece, thus ensuring greater rigidity and maximum security in high-transit areas. Furthermore, thanks to its polymer concretematerial, the channel is corrosion-proof, long-lasting, resistant and suitable for all typ... More

Project • By ULMA Architectural SolutionsChurches

Capitol Church in Kragujevac, Serbia

ULMA Architectural Solutions has installed its drainage channels in the Capitol Church in Kragujevac city center in Serbia. The model U100 drainage channel has been installed with a galvanized slot grating for C250 load class.The slot grating is a grating with an inverted "T" shape, and is particularly appreciated for its aesthetic, as it fits perfectly into the pavement (either concrete, cobblestone or tile) achieving a complete camouflage in the urban landscape.Discover more about this aesthetic and functional grating. More

Project • By ULMA Architectural SolutionsStreets

Rua Sete de Abril street

The slotted grille is notable for its appearance, which integrates seamlessly in the urban environment. The refurbishment of the street Sete de Abril is a project of the local council, which is looking to revamp and upgrade pedestrian areas in the town centre. Project carried out by SP Urbanismo and the building firm Almeida Zapata. More

Project • By ULMA Architectural SolutionsVillages

Customised Slot Grating in Azpeitia

A double-intake slot grating specially designed for the site has been supplied, in an historical Basque town which totally blends in with the urban landscape.In order to maintain the aesthetics, a drainage system was proposed consisting of a hidden channel with double-intake single-slot grating. This solution contains a rainwater inlet in a 20-mm slot, divided into two symmetrical parts in compliance with the Accessibility Regulations for Urban Public Areas for Pedestrian use.At the request of the project designer, the grating was customised creating drainage housings so that the water reaching the grating, filtered from the slabs, does not stagnate, but returns to the channel. This prevents the deterioration of the installation and minimis... More

Project • By ULMA Architectural SolutionsStreets

Vitoria Street

ULMA SELF250 drainage channels on Vitoria Street in Lisbon, Portugal.ULMA Architectural Solutions was chosen to install its drainage channels as part of the renovation works on “Rua da Vitória”; a touristic pedestrian area popular due to its location near the most important square in Lisbon, the Praça do Comércio.ULMA supplied channels from its domestic range (SELF 250 system) with a special single-slot grating designed in stainless steel. The stainless steel lateral single-slot grating has been specially developed according to the planner's specifications and adapted to their needs. This kind of inverted L-shaped grating is an ideal solution for pedestrian streets such as Rua da Vitória. In addi... More