Sapphire Jubilee Bridge-Tunnel

Sapphire Jubilee Bridge-Tunnel
Carries	6 lanes vehicular traffic 2 high-speed rail lines 2 freight rail lines Pedestrian/cycling path
Crosses	Strait of Lyrica
Locale	Buenaventura, South Lyrica to Estefania, Islas de la Libertad
Official name	Sapphire Jubilee Trans-Maritime Connection
Other name(s)	The Unity Link
Owner	Government of Nouvelle Alexandrie
Maintained by	Department of Civil Works and Transportation
Characteristics
Design	Bridge-tunnel combination
Total length	233.73 km
Width	42 meters
No. of spans	8 artificial islands
No. of lanes	6 vehicular + 2 emergency
Rail characteristics
No. of tracks	4 (2 passenger, 2 freight)
Track gauge	1,435 mm (standard gauge)
Electrified	25 kV 50 Hz AC overhead
Operating speed	200 km/h (passenger rail) 120 km/h (freight rail) 110 km/h (vehicular)
History
Designer	Federal Infrastructure Design Bureau
Constructed by	Parap Construction and Engineering ESB Construction Constructora de Hato Rey
Construction start	1.I.1750 AN
Construction end	1755 AN (projected)
Construction cost	NAX€26.8 billion
Opened	5.II.1755 AN (target)
Statistics
Toll	Yes (vehicular) Rail tickets sold separately
Location
References

A map of the Sapphire Jubilee Bridge-Tunnel project location; 1750 AN.

The Sapphire Jubilee Bridge-Tunnel is a 233.73-kilometer combined bridge and tunnel connection under construction between Buenaventura in South Lyrica and Estefania in the Islas de la Libertad, Nouvelle Alexandrie. Approved by the Federal Assembly in 1748 AN with a budget of NAX€26.8 billion, the project officially began construction on 1.I.1750 AN as the flagship infrastructure initiative of the nation's Sapphire Jubilee, marking 65 years since the federation's founding. The connection consists of 142.73 kilometers of bridge sections and 91 kilometers of tunnels, including a 67-kilometer main tunnel passing beneath the international shipping lane, making it one of the longest underwater tunnels on Micras.

The project extensively utilizes Wechua concrete, a traditional construction material known for exceptional water resistance and compressive strength, requiring approximately 6.8 million cubic meters for the tunnel sections alone. Eight artificial islands serve as ventilation stations and bridge-tunnel transition points, with the largest, Isla Navegación, spanning 22 hectares and housing a maritime control center. When completed in 1755 AN, the bridge-tunnel will accommodate six lanes of vehicular traffic, two high-speed rail lines, emergency lanes, and pedestrian paths on bridge sections, reducing transportation time between the regions by 60 percent while maintaining uninterrupted passage for international shipping traffic through one of the area's busiest maritime corridors.

See also

• Sapphire Jubilee of Nouvelle Alexandrie
• Wechua concrete
• South Lyrica
• Islas de la Libertad
• Transportation in Nouvelle Alexandrie
• Federal Infrastructure Design Bureau