Yangtze’s River Estuary Deep Water　Channel　Renovation Works Phase II including: N IIB contract works； NIIC contract package works and N5 Groin extension works. Works content includes 8.6km north island dike, N6 Groin end section, N8 Groin soft foundation section and N9 & N10 Groin Works. The total alignment length is 12.675km. Major works quantity includes 544nos precast semi-cylinder caisson, 21651nos interlocking revetment block precasting and installation, 350000m3 concrete casting, 2000000m3 rock placing, and 1770000m2 soft geotextiles-laying.
The project was awarded of National Gold Trophy Prize for Excellent Works, China Zhantianyou Prize for Civil Works as well as many other honorary titles for its excellent construction quality.