The regional airport of Monterey (California, US) has two parallel runways, respectively 7,404 and 3,503 feet long. The RSA on 10R-28L, the primary runway of Airport MRY, failed to meet the standards prescribed by the American aviation authorities. The primary runway was constructed many years ago by levelling the top of a hill. Lengthening the runway involved extending an earthen embankment out over a low-lying flood plain area. The proximity of the San Andreas Fault played a role when it came to the slope stability analysis. After taking various aspects into consideration, it was decided to reinforce the underlying soil with a geogrid: TenCate Miragrid™.
Work began on the east side of runway 10R-28L in February 2014 and was completed in April 2015. Part of the work involved the construction of terraced retaining walls to support the plateau for the installation of a so-called engineered material arresting system (EMAS) bed. In total 42,000 m2 of TenCate Miragrid® was used for this construction.
Picture: SharpShotsAerial. More information and pictures in the upcoming edition of txtures.