Riyadh Metro Line 3 – ANM Nine Elevated Stations

Project Overview

Atlantis Contracting successfully delivered the fabrication, supply, and installation of custom architectural and structural metal works across nine elevated stations on Riyadh Metro Line 3, one of Saudi Arabia’s most significant and complex transportation infrastructure developments.

The scope comprised approximately 10,000 linear meters of SS316 stainless steel and hot-dip galvanized steel metal works, together with approximately 4,000 m² of zinc-coated galvanized steel sheet fabrication and installation.

All works were executed in accordance with approved shop drawings, project specifications, quality requirements, and the stringent HSE standards governing the Riyadh Metro programme. The completed systems were engineered to provide long-term durability, precision, and seamless integration with the architectural and structural design of each station.

Project Details

• Project Riyadh Metro Line 3 – Nine Elevated Stations
• Location Riyadh, Saudi Arabia
• Contractor Atlantis Contracting
• Completion 2024
• Scope Custom Architectural & Structural Metal Works – Fabrication & Installation
• Stations 9 Elevated Stations
• Custom Metal Works Approx. 10,000 LM
• Sheet Metal Works Approx. 4,000 m²
• Main Materials SS316 Stainless Steel, Hot-Dip Galvanized Steel, Zinc-Coated Galvanized Steel Sheets

Scope of Works

Atlantis Contracting was responsible for the complete delivery of the custom metal works package, including:

• Site surveys and verification of structural interfaces and fixing conditions.
• Preparation and submission of shop drawings and method statements.
• Fabrication of custom SS316 stainless steel architectural elements.
• Fabrication of hot-dip galvanized steel structural elements and support systems.
• Fabrication and installation of zinc-coated galvanized steel sheet systems.
• Precision cutting, forming, welding, finishing, and treatment of fabricated components.
• Workshop quality control and pre-delivery inspections.
• Transportation and coordinated delivery to nine active station sites.
• Installation of metal works, cladding systems, architectural elements, and structural components.
• Installation of associated support structures and fixing systems.
• Coordination with structural, architectural, and MEP disciplines.
• Final inspection, quality verification, documentation, and handover.

Site Conditions & Project Complexity

• The project involved simultaneous works across nine elevated stations, each progressing at a different stage of structural and architectural completion. This required detailed station-by-station surveys, installation sequencing, and continuous coordination with other trades.
• The elevated station structures also presented significant working-at-height, access, lifting, and material-handling requirements, while varying structural substrates—including concrete, structural steel, and composite elements—required tailored fixing and connection solutions.
• In addition, the project was executed within an active construction environment where structural, MEP, and architectural activities were progressing concurrently. This required careful programme management to maintain installation productivity while avoiding clashes with other disciplines.

Key Project Challenges & Solutions

1. Large-Scale Fabrication Across Nine Stations

The simultaneous delivery of approximately 10,000 LM of custom metal works and 4,000 m² of sheet metal systems required strict control over procurement, fabrication, quality inspection, logistics, and installation sequencing.

Atlantis Solution:

A centralized fabrication and delivery programme was implemented, with production sequenced according to the installation readiness of each station. Workshop inspections were completed prior to dispatch, while critical components were strategically managed to maintain continuity of site operations.

2. Working at Height

The elevated nature of the stations required extensive installation activities at height under demanding project safety requirements.

Atlantis Solution:

Dedicated HSE procedures were implemented for elevated works, including certified scaffolding, access platforms, controlled lifting operations, approved rigging equipment, daily inspections, and toolbox talks prior to work commencement.

3. SS316 Surface Finish Protection

The high-quality architectural finish required for SS316 stainless steel demanded strict control during fabrication, transportation, and installation. Preventing contamination, scratches, and surface damage was critical to maintaining the specified appearance.

Atlantis Solution:

Stainless steel fabrication was performed under controlled workshop conditions with segregation from carbon steel operations. Stainless-steel-specific tools and handling procedures were adopted, while protective film and controlled packaging were maintained through transportation and installation. Final surface inspections were completed prior to handover.

4. Multi-Station Programme Coordination

Managing installation across nine stations, each with different access conditions, construction progress, and interface requirements, presented a significant coordination challenge.

Atlantis Solution:

A centralized project management structure was established, supported by station-specific supervision teams. Weekly progress reviews and rolling look-ahead programmes were used to coordinate manpower, materials, access, and installation priorities while proactively addressing potential programme conflicts.

Quantities Executed

Work Category Quantity Material

1. Custom Metal Works ~10,000 LM SS316 Stainless Steel & Hot-Dip Galvanized Steel
2. Sheet Fabrication & Installation ~4,000 m² Zinc-Coated Galvanized Steel Sheets
3. Stations Covered 9 Stations Riyadh Metro Line 3

Execution Methodology

The project was delivered through a controlled end-to-end process covering:

1. Mobilization & Survey

Detailed verification of metal work zones, structural interfaces, substrates, dimensions, and fixing conditions across all nine stations.

2. Engineering & Approvals

Preparation and submission of shop drawings, technical details, and method statements for review and approval.

3. Workshop Fabrication

Precision fabrication of SS316 stainless steel, galvanized steel, and sheet metal components in accordance with approved drawings and specifications.

4. Quality Control

Inspection and verification of fabricated components prior to transportation to site, minimizing site rework and ensuring dimensional and finish compliance.

5. Logistics & Site Delivery

Coordinated delivery of fabricated components based on station-specific installation programmes and site readiness.

6. Installation

Erection and installation of architectural and structural metal works, support systems, cladding elements, and associated components.

7. Interface Coordination

Continuous coordination with architectural, structural, MEP, and other site disciplines to ensure proper integration and prevent installation conflicts.

8. Inspection & Handover

Final inspections, surface finish verification, quality documentation, rectification where required, and formal handover of completed works.

Project Outcome

Atlantis Contracting successfully completed the custom metal works package across all nine elevated stations of Riyadh Metro Line 3, delivering approximately 10,000 linear meters of SS316 stainless steel and hot-dip galvanized steel works and approximately 4,000 m² of zinc-coated galvanized steel sheet systems.

The project demonstrates Atlantis Contracting’s capability to deliver large-scale, precision-engineered metal works within complex transportation infrastructure environments, combining controlled workshop fabrication, site installation, quality assurance, HSE management, and multi-station programme coordination.

The completed works provide durable, high-performance architectural and structural solutions that contribute to the functionality, longevity, and architectural identity of Riyadh Metro Line 3.