Tree root bridges

RootBridge® is a load-supporting steel lattice framework designed to protect tree root zones during construction by preventing soil compaction and root damage. Made for use in root protection areas, it bridges over roots to allow paving or access without harming trees, supporting loads up to 30 tonnes with minimal structure height

RB Heavy 57kN is a heavy-duty tree root protection system for use under roadways and entrances, supporting vehicles up to 40 tonnes with an 11-tonne axle load. Maintains zero soil compaction and can be finished with mesh grids, paving or asphalt. Suitable for heavy access where trees must be retained

RB Light 15kN is a in ground root bridge system made for light vehicular traffic, supporting up to a 3-ton axle load. Designed for cost efficiency, it uses 1m x 1m sections and can be finished with heel-safe mesh or paved over for different surface requirements: light-duty root protection system for vehicles and pedestrians; supports 15kN point

RB Highway RootBridge by Green Grid Systems is a modular root bridge system designed to create access roads into new developments. It can support dynamic loading from all highway traffic: modular root bridge system for highway traffic; protects tree roots during construction projects; supports 200kN point load; sections measure 2m x 2m; depth of

RB Pedestrian is a tree root bridge system designed to protect existing tree roots in landscaped urban areas with pedestrian traffic. It has a low overall depth of 65mm. Installations can be overlaid with paving, GRP cover or heel-safe gratings

A new-build house was being built on a site in the vicinity of a mature beech tree. Part of the project involved a patio area and carport within the drawn RPA (Root Protection Area) of the tree. Green Grid Systems was contacted to supply a solution to allow these aspects to go through planning. A steel beam structure was bolted to groundscrew

Heavy-duty root bridges were used to ramp onto a geocellular system, creating access for a pair of semi-detached houses in Wokingham. The RootBridge 50kN system was installed within the RPA of a category A tree, and left as exposed mesh to keep the build-up low. 1.8m screw piles were used to support the steelwork, lifting the load above the tree's

RB heavy duty used to create a driveway for nine dwellings and a public house at a project in York. Rootbridge heavy duty is designed for overrun by vehicles up to 30 ton. This made it the solution of choice for a development in York, where planning constraints called for the protection of three mature and established lime trees. The access roads

A new car parking space was to be built around existing tree stock. The developers were looking for a solution whereby they didn’t have to remove or damage existing trees. Green Grid’s tree root protection system was selected for this project. Root bridges can be manufactured in all dimensions and the shape of the root bridge can be adjusted

In urban projects, Green Grid's root bridge can be installed to provide a support layer where paving or tarmac must be applied near existing trees. The 7.5 inches thick steel structure prevents soil compaction, thus protecting the tree

A stairway was to be built near an existing tree. The roots were too close to the surface for a surface layer to be built using conventional methods. Green Grid Systems installed a root bridge, replacing the crushed stone base. The required surface preparation depth was reduced from 30cm to 7.5 cm. The solution enabled works to continue around the

RootBridge 50kN system was used to bridge two areas to provide a temporary tree root protection system capable of supporting construction traffic up to 30 ton at the Royal Botanic Garden in Edinburgh where a new, efficient, eco-friendly and sustainable energy centre, and state-of-the-art plant health suite was being developed

In the picturesque town of Congleton, Green Grid Systems created a new pedestrian pathway using the innovative RootBridge panel system. Designed to integrate functionality and aesthetics, the pathway features a curved design that gently ramps down from the pavement. It features a tarmac surface for a smooth, durable finish and ease of access. To

A car parking solution was needed for an urban area with an existing tree stock. This was to ensure adequate space for nearby café facilities, play areas for children, accessibility and seating, as well as space for additional trees. Green Grid's RootBridge root protection system was chosen for this project. The RootBridge, which has a 7.5cm-high

Very heavy-duty root bridges were used in the construction of a driveway for two new dwellings in Kidlington, Oxford, to protect tree roots. Driveways and access roads often need to pass close to mature trees to get to areas of land for new developments. In this project, the new driveway passes near a mature tree that required protection as a

A pedestrian pathway was needed at a school to create a continuous route through a Root Protection Area on sloping ground. The site presented a moderate gradient with uneven terrain, making it unsuitable for traditional surface treatments that would require excavation and ground compaction. RootBridge was chosen for its ease of installation and

A driveway to five new dwellings was granted access at planning stage through a Root Protection Area (RPA) on the understanding that tree roots would not be damaged. Green grid's involvement didn’t start until the houses were completed, when the developers found that their original plan to use a concrete slab set on concrete piles wouldn’t work

Tree root bridge RB VHD 57kN was chosen for a new driveway for two dwellings in Kidlington, Oxford, which were granted planning permission on the condition that the roots of a mature tree were protected. RB VHD 57kN was chosen because it allows access for all vehicles and does not impede the transfer of water and air to the soil

Driveway access was granted through a Root Protection Area at planning stage for 5 new dwelling houses on the basis of a proposal to use a concrete slab set on concrete piles to protect the tree roots. However, it transpired the proposed solution was not workable due to a gradient across two planes on the proposed driveway. Green Grid was approached to see if their steel tree RootBridge