Thumamah–Othman intersection project in Riyadh will deliver a tunnel and four bridges to transform traffic flow. The project targets the busy junction of Thumama Road and Uthman ibn Affan Road. Moreover, the initiative forms part of the Road Axes Development Program led by the Royal Commission for Riyadh City (RCRC). Consequently, planners aim to improve connectivity and mobility across key urban corridors.
Thumamah–Othman intersection project scope and engineering design
The Thumamah–Othman intersection project will include four elevated bridges spanning approximately 2,000 meters. These bridges will connect all directions seamlessly without traffic interruptions. In addition, engineers will construct a central tunnel measuring about 850 meters in length. The tunnel will feature three lanes in each direction to support heavy traffic volumes.
Furthermore, the design will convert Uthman ibn Affan Road into a free-flow corridor. This will ensure uninterrupted movement along Thumama Road and surrounding routes. Service roads will also be developed with two lanes in each direction. These roads will support local traffic and improve access to nearby neighborhoods and businesses.
Notably, the project integrates modern traffic engineering principles to eliminate congestion points. By separating traffic streams, the design reduces delays and enhances safety. Therefore, the upgraded intersection will accommodate future demand as Riyadh continues to expand. In addition, drainage systems and utility adjustments will support long-term infrastructure resilience.
Construction strategy for Thumamah–Othman intersection project
The Thumamah–Othman intersection project will follow a phased construction approach to minimize disruption. Initially, contractors will prepare the site and implement temporary traffic diversions. These diversions will regulate vehicle movement and maintain flow during construction. Moreover, clear directional signage will guide motorists along alternative routes.
In addition, project teams will conduct continuous on-site monitoring to manage traffic conditions effectively. Safety measures will also be implemented across the work zone to protect both workers and road users. Consequently, authorities aim to maintain operational efficiency despite ongoing construction activities.
Subsequently, excavation works for the tunnel will commence alongside bridge foundation construction. Advanced construction methods may be used to accelerate delivery timelines. For instance, prefabricated structural elements could improve efficiency and quality. Therefore, the project is expected to progress steadily while maintaining high safety standards.
Urban benefits of Thumamah–Othman intersection project
The Thumamah–Othman intersection project will deliver wide-ranging benefits for Riyadh’s transport network. Firstly, it will significantly reduce travel time across a major traffic corridor. Secondly, it will enhance road safety by minimizing conflict points and streamlining vehicle movement. Moreover, improved traffic flow will support faster emergency response times.
In addition, the project will contribute to environmental sustainability by lowering vehicle emissions. Reduced congestion will decrease fuel consumption and improve air quality. Furthermore, the initiative will enhance urban landscaping around the intersection. This will create a more attractive and functional urban environment.
Importantly, the project will also increase investment value in surrounding areas. Improved infrastructure often attracts commercial and residential development. As a result, businesses and communities will benefit from better connectivity. Therefore, the intersection upgrade aligns with Riyadh’s long-term urban development strategy.
The Qatar–Bahrain Friendship Bridge project, is a similar large-scale regional connectivity development which also focuses on enhancing cross-border transport links and easing congestion across strategic corridors
Project Fact Sheet
Project Name: Thumamah–Othman Intersection Project
Location: Riyadh, Saudi Arabia
Estimated Cost: $240 million
Client/Owner: Royal Commission for Riyadh City (RCRC)
Project Type: Urban road infrastructure development
Scope of Works:
- Construction of four elevated bridges (2,000 meters total length)
- Development of a central tunnel (850 meters) with three lanes each direction
- Service roads with two lanes in each direction
- Traffic management and diversion systems
- Urban landscaping and supporting infrastructure
Objectives:
- Improve traffic flow and reduce congestion
- Enhance connectivity between major road axes
- Reduce travel time and improve safety
- Lower emissions and support environmental goals
- Boost economic and investment potential
Program Alignment:
Status (2026): Planned/early-stage implementation
Project Team
Owner: Royal Commission for Riyadh City (RCRC)
Partners:
Sponsors: Government of Saudi Arabia
Contractors:
Main Contractor: To be announced
Subcontractors: To be announced
