Al Haramain High Speed Rail (HHR) is a 300 kilometers per hour electrified line that links Makkah to Madinah and passes through three stations: Jeddah, King Abdul Aziz International Airport, and King Abdullah Economic City in Rabigh. we have been work in Haramain railway in Jeddah as subcontractor from Yapı Merkezi for construction (turkish company) the total budget of project is 1,046,000,000 SAR our scope was block and concrete work and the project still under construction. The HHR is a crucial component of the development plan and the expansion program of the Saudi railway network. This project links the two main cities at the western region, meets the increasing demand to serve the rising number of internal and external pilgrims with a capacity of 60 million passengers a year, and it alleviates congestion on roads in Makkah, Madinah, and Jeddah. Not least the project is to provide comfort, safe and fast transport services. HHR has 35 trains each has 13 cars and 417 seats.