Explore Genap’s sustainable project portfolio
Discover how Genap tackles real-world challenges with innovative and sustainable solutions. Explore our project portfolio and see how we leverage our expertise to craft tailor-made solutions to meet a variety of challenges.

Membrane underneath the tunnel entrance
For the expansion of the Doornboslaan underpass, Genap installed an advanced membrane construction. These are crucial for the new bus lane ramps, with 8,500 m² of Aquatex PVC membrane and 17,000 m² of protective fleece used to safeguard the sheet piling.

Sealing membrane on waste Incinerator ash mounds
At the A6/A7 junction near Joure, Genap applied sealing membranes to various waste incinerator ash mounds. The sealing consists of a 2 mm thick HDPE geomembrane, MST+/MSB, double-sided textured, with a protective fleece underneath the geomembrane.

Deepening for tunnel trough
Genap managed the sunken layout of the Hollandiastraat as part of the project at Knooppunt Joure A6/A7, where the A7 passes over the Hollandiastraat. This involved the use of a 1.5mm thick LLDPE MST MSB membrane, which is intended to keep groundwater out of the tunnel box over an area of approximately 14,000m².

Sixteen underpasses for dual carriageway
For improved access to North-East Friesland, a 24 km long dual carriageway has been constructed between Dokkum Zuid and Nijega. Genap was commissioned to apply geomembrane constructions for all 16 underpasses to keep the passages, which are located below the groundwater level, dry.


