The first foundations are to be sunk later this year for a 47km causeway bridge spanning the Gulf of Thailand south-west of Bangkok. Total length of the structure will be 90km, including a section running above rooftops on land. The bridge will be built in 100m stretches and will take two to three years to complete. This is the fifth very long international road bridge with Cowi involvement. "Causeway solutions are growing in popularity,” explains project manager Pisit Karnjanarujivut of local company Arun Chaiseri in Thailand. Cowi is currently carrying out studies for a 32km bridge in Kuwait and a 42km link between Qatar and Bahrain and has also been working on the 32km Dong Hai bridge in China and the 25km Saudi-Bahrain causeway.