Maerdy Mountain Landslip scheme was awarded the Transportation Geotechnics award and received a high commendation for Transportation Project of the Year at the 2018 CIHT Cymru Wales Awards.
Tony Gee worked with Alun Griffiths Contractors Ltd to repair a slipping section of the A4233 Maerdy Road situated on a steep mountainside near Aberdare, where Tony Gee designed a 145m long reinforced concrete edge beam.
The beam was founded upon a double row of staggered piles, offset to combat the push-pull effects of loading on the road carriageway. The scheme also involved construction of a 200m long reinforced aggregate matrix retaining wall. We also designed a drainage scheme for the entire mountain slope that required a large attenuation tank situated on a hairpin bend, this was to buffer flash inundations regularly experienced in this area of South Wales.
Speaking on the Transportation Geotechnics award win, the judges commented that “These works involved major road renewal and maintenance works over a limited closure period in order to reconnect two valley communities. The project raised demanding stakeholder and value management issues and required partnership working throughout the project’s preparation and construction phases. The works were necessary, appropriate and effectively carried out”