The Challenge Network Rail needed extra parking for their new industrial units alongside the railway track in Warrington. Their main concern was the run off of water from the rail line flooding the new car park beneath, and therefore needed a SuDS compliant solution. As an alternative to traditional tarmac carparks that would require expensive drainage systems, consider the use of the Gridforce permeable paving system in conjunction with the use of tarmac. Gridforce products fully comply with SuDS regulations and therefore can act as run off from the tarmac areas. This eliminates the requirements for underground drainage. Prior to the work, the area was an un-used grass land comprising of excess soil mounds and weeds. Project Network Rail Car Park Application 1005m2 gravel finish Product GF 50 black Location Slutchers Lane, Warrington The Solution The land was prepared for laying the grid by removing excess grass land and digging down to the substrate.  MOT type 3 was then laid and compacted to provide a firm surface and allow for adequate drainage. A sheet of geotextile membrane was laid on top of the sub-base to prevent any further weed growth and act as a separating layer. This was then covered with a layer of sand providing a levelling layer and forming a bedding layer for the grid. The GF50 pavers were laid and connected into place to cover the required area.  The grid was then in filled with 14mm angular gravel as selected by the client. Conclusion The installation work on this car park was carried out in December 2012 and within a short space of time the original grass waste land had been transformed and was available for use.  The Gridforce ground reinforcement system allows vehicular stability, water infiltration and the reinforced gravelled finish the customer required. Client Benefits

• Gridforce has a 10 year product guarantee
• Gridforce units weigh only 1.4kg each (5.6kg/m2), well within safe manual handling limits
• Gridforce is manufactured from 100% recycled plastic
• Gridforce’s patented lug and slot connection aids line and level accuracy and facilitates fast installation
• Local materials used in construction of the car park base and stone used in filling Gridforce
• Permeable surface means no drainage infrastructure required and no storm water run off issues
• Rainwater returned to the water table, ensuring no further burden on existing sewer system and alleviating risk of flooding

Project Kew and Ham Sports Association Application 2300m2 gravel finish Product GF 40 black Location Twickenham Installers Gridforce Installation Team The Challenge Kew and Ham Sports Association needed a new aesthetically pleasing car park for their newly built Multi Use Games Area (MUGA). As well as trafficking cars, the car park needed to be able to withstand heavy goods vehicles for the on-going work. Prior to the work, the area was grass land which had been worn down by previous traffic leaving a muddy mess. The Solution The land was prepared for laying the grid by removing excess grass land and digging down to the substrate.  MOT type 3 was then laid and compacted to provide a firm surface and allow for adequate drainage. A sheet of geotextile membrane was laid on top of the sub-base to prevent any further weed growth and act as a separating layer. This was then covered with a layer of sand providing a levelling layer and forming a bedding layer for the grid. The GF40 pavers were laid and connected into place to cover the required area.  The grid was then in filled with 14mm angular gravel. Two colours of gravel were used to differentiate the parking and the access routes. Additionally, parking markers were used to highlight the parking bay areas. Conclusion The installation work on this car park was carried out by the Gridforce installation team in June 2012, and within a short space of time the original grass land had been transformed and was available for use.  The Gridforce ground reinforcement system allows vehicular stability, water infiltration and the reinforced gravelled finish the customer required. Client Benefits

• Gridforce has a 10 year product guarantee
• Gridforce units weigh only 1.4kg each (5.6kg/m2), well within safe manual handling limits
• Gridforce is manufactured from 100% recycled plastic
• Gridforce’s patented lug and slot connection aids line and level accuracy and facilitates fast installation
• Local materials used in construction of the car park base and stone used in filling Gridforce
• Permeable surface means no drainage infrastructure required and no storm water run off issues
• Rainwater returned to the water table, ensuring no further burden on existing sewer system and alleviating risk of flooding

The Challenge Continuing its policy of expansion, Twycross Zoo commenced construction of its new £7,000,000 Himalaya Visitor Welcome Centre in March 2009. Himalaya was designed to emerge naturally from the landscape, and the use of local sustainable materials, ground source heating and landscaping to attract biodiversity were considered fundamental to the development. Design and construction of Himalaya was entrusted to Kier Marriott Construction Ltd, through its Nottingham office.  Various options were considered for the car parking, but bearing in mind that materials used on the previous car parking areas had not always been an unqualified success, the Gridforce ground reinforcement system was selected and approved.  After a 12 month construction period, the Himalaya Centre opened to visitors in March 2010. Application: Parking for new visitors centre Location: Twycross Zoo, Leicestershire Installation Date: Early 2010 Client: Kier Marriott Construction Ltd (Nottingham) -appointed design and build contractor for Twycross Zoo. Gridforce Solution 2060m2 of Gridforce GF40 pavers in black, manufactured from 100% recycled plastic. Construction Details Base: 300mm of crushed stone on a layer of geotextile Blinding Layer: 20mm of coarse grid sand Surface material: Gridforce GF40 pavers (unit size 500x500x40mm but delivered pre-connected in 1m2 = 4 pavers per panel). Pavers filled with 10mm angular granite. Client Benefits

• Gridforce units weigh only 1.4kg each (5.6kg/m2), well within safe manual handling limits
• Gridforce is manufactured from 100% recycled plastic
• Gridforce’s patented lug and slot connection aids line and level accuracy and facilitates fast installation
• Local materials used in construction of the car park base and stone used in filling Gridforce
• Permeable surface means no drainage infrastructure required and no storm water run off issues
• Rainwater returned to the water table, ensuring no further burden on existing sewer system and alleviating risk of flooding
• Carl Ellis of Melfort Construction commented that ‘the pavers were easy to lay, enabling us to complete installation on time.  We were also very pleased with the level of support on site from the Gridforce representative and I know that Twycross Zoo are very happy with the appearance of the car parking area’.