SAJCO has been prominent in the execution of roads, bridges, tunnels, interchanges and underpass projects since 1965, some of which include the following expressways, single and double road projects:
- Al-Hanakiya – Hail Road
- Al-Mustawi Road
- Intersection of Riyadh – Taif expressway with Makkah Road
- New Equestrian Club Dual Carriageway and Underpass in Riyadh
- Buraydah – Hail – Madinah Intersection
- Stage III of the Riyadh-Dammam Expressway