Improvement of Tahliah Madinah Intersection Underpass

It was decided to build a tunnel in order to reduce the heavy traffic at the intersection of Tahliah Street and Madinah road in Jeddah. The soil improvement works comprise of the design and implementation of bottom plug by means of tangent jet grouting to form an impervious blanket. The purpose of bottom plug is to minimize the ground water for the underpass excavation and protection of the existing buildings and foundations of the Medinah Road Bridge. Within the scope of the project, the construction of 12,000 m of Jet Grout was designed by Kasktaş. The contract was signed with Advanced Construction Company on September 5, 2019. Jet Grout installations were started on December 12, 2019. Curfews and restrictions on working hours due to the Covid-19 epidemic, the project’s completion time has been extended and is planned to be completed on January 1, 2021.

Project Description

Improvement of Tahliah Madinah Intersection Underpass

  • Engineering

Project Features

Advanced Construction Company
Key Quantities
Jet Grout 12,000 m
Project Duration
Start Date 12.12.2019
Finish Date Current






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