Road Gullies & Drainage Gullies Ireland
Road gullies and drainage gullies collect surface water and divert it into the drainage network, preventing pooling and flooding. Mactar supplies and installs the full range across Ireland: round trapped gullies (with a water seal to stop odours), untrapped square gullies, silt boxes and driveway gullies. Every road gully we install is bedded and surrounded in mass concrete to resist deformation.
Supply and installation of drainage gullies sits alongside Mactar’s wider civils and surfacing work, so drainage, ironwork and the final surface can be delivered by one contractor.
What Drainage Gullies Do
Drainage gullies are the point where surface water leaves the ground and enters the drainage system. Every hard surface needs somewhere for rainwater to go: on a driveway, patio or yard that is a drainage gully, and on a road or car park it is a road gully set along the kerb line. Without them, water sits on the surface, seeps into the layers below and breaks the surface up over time.
Road Gullies vs Drainage Gullies
The two work the same way; the difference is scale and setting. Domestic and site drainage gullies handle run-off from driveways, patios and roofs. Road gullies are larger units for carriageways: the outlets are 150mm in diameter rather than the domestic 100mm, and a single road gully drains up to around 250m² of carriageway. Both come in a range of sizes and depths.
| Drainage Gully (Domestic/Site) | Road Gully (Carriageway) | |
|---|---|---|
| Typical use | Driveways, patios, roofs, yards | Roads, kerb lines, car parks |
| Outlet | Commonly 100mm | 150mm diameter |
| Catchment | Local area / single point | Up to ~250m² of carriageway |
| Larger units | Standard pot sizes | Up to 450mm units (craned in) |
Comprehensive Water Management Solutions for Road & Drainage Gullies
Road gullies are a specific type of drainage gully designed to be installed along roadways to collect rainwater and surface runoff from the road surface. They are an essential component of urban drainage systems, helping to prevent water accumulation and potential damage to the road structure. Road gullies are strategically placed along the curbs or edges of roads to capture water before it can cause pooling or erosion. They are connected to underground drainage pipes that carry the collected water to larger stormwater management systems or natural water bodies
Concrete Road Gullies Ireland
Experience enhanced functionality with our round trapped gullies, which employ a water seal to eliminate odors. Alternatively, use untrapped square gullies and silt boxes to efficiently collect surface water. Silt Boxes arrive with one pre-tapped hole, with the option to tap out the remaining three as needed.
Elevating Your Water Management
Choose from our comprehensive range of Concrete Channels and Road Gullies to optimize your site’s wastewater management. From efficient drainage to odor elimination, our solutions are tailored to meet your diverse needs.
The road gullies are larger, but they work the same. The outlets are 150mm in diameter, not 100mm. They come in different sizes and depths. Road gullies are used in carriageways to drain a maximum of 250m2.
OUR SERVICES -
RECENT PROJECTS -
CONTACT DETAILS -
0838027031
info@mactar.ie
MacTar Kingsgate, Duleek, Co Meath
How We Maintain Quality and Safety
Concrete road gully under construction Some local authorities insist that the regulating wall be built directly on top of the concrete gully/surround.
The grating must be installed before the final surfacing/paving.
To accommodate smaller gratings on the larger pots with a diameter of 450mm, it is common for the brickwork to be corbelled inwards. The corbelled course should not exceed the preceding course in height by more than 50mm.
Your Queries, Our Expertise
Got questions about, Sealing For Manholes, Asphalt Contractors ? Our team of experts is at your service. Reach out with your queries, and rest assured, we have the perfect solution waiting for you.
A Spectrum of Services
Mactar’s commitment goes beyond drainage gullies. Explore our wide array of services, encompassing Civil Engineering, Road Construction, Routine Maintenance, Mastic Ironwork, tramacdam, CarPark Resurfacing and even Hot Box Hire.
Drainage Gullies Ireland
Essential to any drainage system, drainage gullies play a pivotal role in preventing water pooling and property flooding. In Ireland, they are mandatory for new builds and renovations, in line with government standards. These gullies collect and divert water from diverse sources, such as roofs, gutters and driveways, into a drainage network. The water then flows to the municipal stormwater system, away from your property.
Planning
Options for drainage gullies range from classic concrete and brick to modern plastics and composites. Material choice affects their durability and lifespan, so it should match your project’s needs. Installation requires meticulous planning and professional execution to ensure proper functioning and compliance with regulations.
Maintenance
Maintenance is key to their longevity and performance. Regular cleaning and inspection are essential practices that remove debris and reveal wear and tear. Design considerations are also paramount when selecting a drainage gully system, as the design directly influences its efficiency and performance. Drainage gullies can even be added to existing structures, making them an ideal solution for older buildings lacking proper drainage.
In conclusion, drainage gullies stand guard against water intrusion and prevent property flooding. Choose a suitable system for your project, and entrust its installation and maintenance to professionals.
Road Gully Types We Supply
- Round Trapped Gullies A built-in water seal (trap) blocks drain odours from rising back up. The default where smell is a concern.
- Untrapped Square Gullies Efficient surface-water collection where a trap is not required.
- Silt Boxes Capture grit and silt before it enters the pipe run; supplied with one pre-tapped hole and the option to tap out the remaining three on site.
- Concrete Channels & Driveway Gullies Linear channel drainage and driveway gullies for domestic and commercial entrances.
Road Gully Sizes & Specifications
| Specification | Typical options |
|---|---|
| Pot diameter | 375mm / 450mm |
| Depth | 750mm / 900mm / 1050mm |
| Outlet | 150mm (road gully), 100mm (domestic drainage gully) |
| Trap | Trapped (water seal) or untrapped |
| Grating class (EN 124) | C250 for car parks and kerb lines, D400 for carriageways |
Not sure which road gully suits your site? Book a site assessment and we'll specify the right unit, depth and grating for the traffic it will carry.
How Mactar Installs Road Gullies
Every road gully Mactar installs follows the same five steps:
- Set out and excavate at the correct level and fall for the surface around it.
- Connect the outlet to the drainage pipe run.
- Set the gully pot or liner and pour the mass concrete surround and bed.
- Build the regulating course and fit the grating to the right load class.
- Reinstate the surface so the road gully sits flush with the finished road.
Drainage Gullies for Your Project
Supply and installation of road gullies and drainage gullies sits alongside Mactar's wider civils and surfacing work: civil engineering, road construction, mastic ironworks, tarmacadam, driveway paving and car park resurfacing. That means drainage, ironwork and the final surface can be delivered by one contractor. Our crews install drainage gullies across Dublin, Meath, Louth, Kildare and the wider Leinster region, with projects delivered nationwide. For ongoing cleaning and emptying, see our gully cleaning service.
Road Gully FAQs
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What is a road gully?
A road gully is a drainage chamber set into the carriageway, usually along the kerb line, that collects surface water through a grating and carries it into the stormwater pipe network. Each road gully has a 150mm outlet and drains up to about 250m² of road. Mactar supplies and installs road gullies and drainage gullies across Ireland, all bedded in mass concrete. -
How much does a road gully cost to install in Ireland?
The cost of a road gully depends on the unit type and depth, the grating load class, excavation and pipe connection, traffic management, and reinstating the surrounding surface. Mactar quotes after a free site assessment, and can supply, install and resurface around drainage gullies and road gullies in one visit. -
How are road gullies installed?
Mactar sets the road gully on the pipework, surrounds and beds it in mass concrete, fits the grating on a regulating course, then lays the final surface so the gully sits flush with the road. -
What is the difference between a road gully and a drainage gully?
They work the same way — collecting surface water into the drainage network. Road gullies are larger units for carriageways, with 150mm outlets and catchments up to about 250m², while domestic drainage gullies typically have 100mm outlets and serve driveways, patios and roofs. -
What is a trapped gully?
A trapped gully has a built-in water seal that stops drain odours rising back to the surface. Round trapped gullies are the usual choice where smell could be an issue; untrapped square gullies are used where a trap is not needed. -
Are drainage gullies required for a new build in Ireland?
Yes — drainage gullies are effectively mandatory for new builds and renovations in Ireland to manage surface water in line with building and drainage standards. Mactar can advise on the right layout and specification for your site. -
What is a silt box for?
A silt box traps grit and silt before it enters the pipe run, reducing blockages downstream. Mactar's silt boxes come with one pre-tapped hole and the option to tap out the other three on site to suit the pipe layout. -
Who installs road gullies and drainage gullies in Ireland?
Mactar supplies and installs road gullies and drainage gullies for councils, main contractors, commercial sites and homeowners. Six qualified crews cover Dublin, Leinster and nationwide, and can deliver the gully, ironwork and final surface in one contract.
Book a Road Gully Site Assessment
Concrete road gullies, drainage gullies & silt boxes supplied and installed across Ireland. Trapped, untrapped & driveway gullies to spec. Six qualified crews covering Dublin, Leinster and nationwide. Free quote.
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