Construction of Ras Mohaisen Baha Makkah Water Transmission System

Water Transmission Company announces a major project in line with Saudi Vision 2030 and National Water Strategy. It is designed to cover the gap between red sea and high mountainous area to transport desalinated water.

Project Overview:

Feature	Specification
Project Name	Ras Mohaisen to Baha to Makkah Water Transmission System
Developer	Water Transmission and Technologies Company (WTCO)
Project Type	Greenfield Independent Water Transmission System (IWTS)
Model	Design, Build, Finance, Lease, and Transfer (DBFLT)
Total Length	Approximately 325 km
Transmission Capacity	542,000 cubic meter per day
Major Components	4 Pumping Stations & Strategic Storage Tanks
Target Regions	Makkah Al Mukarramah and Al-Baha (Adham & Aradhiyah)
Agreement Term	Up to 35 years

It will deliver desalinated water to the Adham and Aradhiyah regions, specifically serving the cities of Makkah Al Mukarramah and Al-Baha.

Critical Tender Timeline:

This project bidding was started in 2025. But due to slight late in bidding process, following is timeline for bidding process.

Milestone	Date
Tender Launch (RFP Issued)	03 September 2025
Inquiring Deadline	17 November 2025
Revised Bidding Deadline	15 March 2026
Extension Request Deadline	15 March 2026
Expected EPC Award	Q2 2026 (Likely April)
Target Completion	Q4 2028

This project attracts EOI (Expression of Interest) from 31 local and international companies including India, Japan, Spain, and Saudi Arabia.

Ras Mohaisen -Baha -Makkah IWTS: Bidders & Consortia:

The competent bidding companies must be part of a pre-qualified consortium capable of the "Finance" and "Lease" portions of the DBFLT (Design, Build, Finance, Lease, Transfer) model.

Category	Country	Participating Companies
International	Spain	9ACCIONA Agua, Elecnor Group, Cox Water
	India	2Kalpataru Projects (KPIL), Megha Engineering (MEIL)
	Japan	4Sojitz Corporation
	USA	5Lonestar Construction
Regional	UAE	6Abu Dhabi National Energy Co. (TAQA), Contrax International DMCC, Emirates Utilities Development Co. (EUDC)
	Kuwait	9Alghanim International
	Egypt	0Orascom Construction (OC)
Local (Saudi)	KSA	6Al Bawani Capital, Nesma, Al Bawardi Group, Al Jomaih Energy & Water, Al Kobraish Investment, Alkhorayef Water and Power, Al Yamamah Water Projects, Al Ayuni Investment & Contracting, Alrawaf Contracting, Buhur For Investment, Precision Scientific Equipment, Rawafid Industrial Company, Thrustboring Construction Company, Vision International Investment (Vision Invest), Mofarreh Al-Harbi & Partners, Mutlaq AL-Ghowairi Contracting (MGC)

Challenges of this Projects:

This project will come across the Sarawat Mountains to reach the Al-Baha region. To lift water in mountains, it requires highly pressurized pumps. 132/33 KV Substation and Overhead Transmission Line of 17-Km also required to power these pumping stations. Water storage tanks with capacity of 2 to 3 days are also part of this project during maintenance and emergency situation.

Socio-Economic Impact:

This project will preserve environment by depleting non renewable fossil ground water. The tender also attracts local content. This will also support agricultural and tourism sector in Adham and Aradhiyah region to provide stable water source.