The Quang Ngai – Hoai Nhon Expressway project stands as a pivotal national initiative, integral to the Eastern North-South Expressway network for the 2021-2025 phase. Spanning 88 kilometers, it traverses Quang Ngai (60.3 km) and Gia Lai (27.7 km) provinces, with an investment exceeding 20 trillion VND. Commenced on January 1, 2023, the project is spearheaded by Project Management Unit 2 (Ministry of Construction), with Deo Ca Group leading the construction consortium.
In its initial phase, the expressway is designed for four lanes, with a cruising speed of 80 km/h. Despite the original timeline targeting completion by Q3 2026, the project is on track to finish eight months ahead of schedule—a remarkable feat given the extensive workload, challenging terrain, and adverse weather conditions.
Mountain tunnel on the Quang Ngai – Hoai Nhon Expressway.
After over 1,000 days of uninterrupted construction, involving 4,000 engineers and workers, most key segments are complete. The roadway has been uniformly paved with asphalt, and safety installations—signage, road markings, and surface cleaning—are nearing completion, preparing the expressway for operation.
Recognized for its intricate technical infrastructure, the expressway features 77 bridges, 586 culverts, and 81 underpasses. Notably, it includes three mountain tunnels totaling over 4,500 meters.
Tunnel 1 (610m) and Tunnel 2 (700m) are complete, with Tunnel 3 (3,200m) classified as a special-grade tunnel. Upon completion, Tunnel 3 will be the longest on the North-South Expressway and the third-longest nationally, following Hai Van and Deo Ca tunnels.
Song Ve Bridge (Dinh Cuong Commune), the project’s longest at 610 meters.
Tunnels 1 and 2 are operational, with technical systems like ventilation, lighting, and fire safety undergoing testing. Tunnel 3 is in the final stages, with 20 jet fans and 1,700 lights (40W-220W) being installed, alongside other safety measures.
Advanced construction methods have optimized geological control, reduced drilling time, and accelerated tunnel reinforcement, ensuring both quality and timely completion. These innovations are key to the project’s early delivery and future operational safety.
Signage installed along the Quang Ngai – Hoai Nhon Expressway.
Once operational, the expressway will connect to the Da Nang – Quang Ngai Expressway in the north and the Hoai Nhon – Quy Nhon Expressway in the south, alleviating pressure on National Highway 1A. It will also foster economic growth in the Central Highlands and nationwide by creating a new development corridor.
Snapshots of the Quang Ngai – Hoai Nhon Expressway pre-inauguration:
Paved and marked roadway.
Tunnels 1 and 2 equipped with fans, lighting, and road markings.
Workers finalizing remaining tasks.
Guardrails and signage completed.
Access ramps to the expressway nearing completion.
The Quang Ngai – Hoai Nhon Expressway awaits inauguration.
Bridges spanning rivers along the expressway.
Final preparations: signage, road markings, and surface cleaning for operational readiness.
Inside Vietnam’s Largest North-South Expressway Tunnel: Over 900 Days of Construction, 1,730+ Lighting Systems Installed
This is one of three mountain tunnels with a total length of 4,500 meters on the North-South Expressway.
Billion-Dollar Highway Through Gia Lai Set to Open Soon
After nearly three years of construction, the Hoai Nhon – Quy Nhon Expressway project has substantially completed its main contract items and is set to open for technical traffic on December 19th.
Conquering Challenges: The 1,000-Day Journey on the Quang Ngai – Hoai Nhon Expressway
After more than 1,000 days of relentless effort, the Quang Ngai – Hoai Nhon Expressway project will officially open on December 19, 2025, completing eight months ahead of schedule. Beyond being a critical transportation infrastructure, this expressway serves as a vital link in the North-South Expressway network, playing a key role in achieving the national goal of 3,000 kilometers of highways connecting Lang Son to Ca Mau.
Prime Minister Challenges Deo Ca: “Where There’s a Will, There’s a Way” – Innovative Tunneling Method to Slash 8 Months Off 20 Trillion VND Expressway Project Timeline
Under the contract, Tunnel No. 3 is slated for a 42-month construction period, with an anticipated completion date of September 2026. In alignment with the Prime Minister’s directive to expedite the project, the target completion has been advanced to the end of 2025, effectively reducing the timeline by 8 months.
Unlocking Central Vietnam’s Potential: The New Economic Corridor Revolution
After nearly three years of construction, the Quang Ngai – Hoai Nhon Expressway project has completed over 90% of its total volume, poised for full-line opening to traffic.
