An extensive infrastructure project in Riyadh, Saudi Arabia, involves the construction of a 300-meter bridge with reinforced concrete retaining walls, a pre-stressed cast-in-situ box section roadway featuring spans from 45 to 54 meters, a 600-meter tunnel with open U-sections and closed rectangular sections for utilities, and the upgrading of utilities along Al Thomamah Road. 

Owner: Riyadh municipality, KSA

Year: 2014