The use of geosynthetics for weak soil, embankment and slope stability problems has been increased since 1960s because they can easily act as an engineering tool by means of flexible design methods and they provide great economic advantages. Today, geosynthetics are being frequently utilized as the solution to soil improvement and retaining wall problems. Additionally, geosynthetics with modu-lar system can create innovator, sustainable and alternative formula in building sector. This paper includes design and construction method of green terramesh retaining wall, which is a geosynthetic retaining wall type with flexible front surface, applied as embankment fill at V27 viaduct in North Marmara Highway Project.