The project is located in five different areas in the city of Jeddah, Saudi Arabia. The project’s scope involves the construction of five concrete-lined rock-fill dams, spillways, discharge channels, intakes and bottom outlets, roads, power grid, and siren systems.
The dams constructed as part of the project are Vadi Gahaia, Vadi Ghulail, Vadi Braiman, Vadi Um Hablain, and Vadi Daghbaj. The reservoirs of five dams have the combined capacity of around 29 million m3 of rainwater. The height of the dams varies between 10 to 21 meters, and their length between 190 and 1,225 meters. The discharge channels, 30 kilometers in total, are made of open, trapezoid-shaped concrete channels.
Originally, the project is part of the second emergency action program initiated in the aftermath of the flood disaster of 2009. The first program, which involved the establishment of an urban rainwater transportation system, was also delivered by our company within a period of three months.
The project was completed in 1 year, and reached a maximum staff of 8,500.
- Contract Works
Jeddah Stormwater Drainage Program
- Main Items
Aggregate Base Layer:525.293 ton
Bitumen Hot Mix Asphalt:81.860 ton
Engineering Structures and Other Concrete Works:368.289 m3
Dam Surface Concrete Lining:29.063 m3
Rock Fortification:101.168 m3
Guard Rails:70.230 m
Secant Piles:1.376 m