Covering a total of 3.98 km., most of the Project alignments are elevated, with tunnels in the middle. The alignment starts where it connects with Phra Metta Road in Patong Subdistrict, Kathu District. Heading eastward, the alignment is elevated, crossing over Pisit Koranee Road for 0.9 km. before it reaches Nak Kerd Hill. From this point, the alignment turns into a tunnel of 1.85-km. distance, passing under the same Hill, and switches back to elevated form for another 1.23 km. until the end of the Project, where it intersects with Highway 4029 (Phra Baramee Road) in Kathu Subdistrict. The entire elevated sections are 4 lanes per direction (2 for cars and the others for motorcycles), with the Project starting and ending points being interchanges. A toll plaza is also provided on Kathu side for toll collection services on both traffic directions.