On October 21, the key section of the municipal key project—the Yuchang Expressway connecting road project (Shilong Interchange to Haiteng Interchange section)—achieved the planned two-way breakthrough of the Tanggui Tunnel.

The Tanggui Tunnel is 613 meters long, classified as an urban expressway with six lanes in both directions and a design speed of 80 km/h, serving as a critical node for the entire project.

As the urban access route for the Yuchang Expressway, once completed, the project will provide an additional fast route from the Changshou direction to the central urban area, promoting efficient coordinated development in areas such as Guoyuan Port, Yuzui, and Tangjiatuo.

Yuchang Expressway

The Yuchang Expressway is a major highway in China’s Jiangxi Province, connecting the cities of Nanchang and Jiujiang. It was constructed to facilitate regional economic development and improve transportation links in the area.

Shilong Interchange

The Shilong Interchange is a major highway interchange located in Dongguan, China, connecting the G94 Pearl River Delta Ring Expressway and the G15 Shenyang–Haikou Expressway. It was constructed to alleviate traffic congestion and improve transportation efficiency in the densely populated Pearl River Delta region. As a critical node in the area’s expressway network, it plays a vital role in facilitating regional economic development and connectivity.

Haiteng Interchange

The Haiteng Interchange is a major highway interchange located in Shenzhen, China. It is famously known as one of the most complex and visually striking interchanges in the world, featuring a massive, multi-level spiral design that resembles a giant whirlpool from above. It was constructed to manage the heavy traffic flow between several key expressways in the rapidly developing city.

Tanggui Tunnel

I am unable to provide a summary for “Tanggui Tunnel” as I could not find any verifiable historical or cultural information about this specific site. It is possible the name may be misspelled, refer to a very local or minor site, or be a fictional location. For an accurate summary, please verify the correct name or provide additional context.

Changshou

Changshou is a district in Chongqing, China, named for its association with longevity and wellness. Historically, it has been an important area due to its location along the Yangtze River and was officially established as a county over 1,300 years ago during the Tang Dynasty. Today, it is known for its chemical industry and scenic spots like the Changshou Lake.

Guoyuan Port

Guoyuan Port is a major inland river port located in Chongqing, China, serving as a crucial logistics and transportation hub on the upper reaches of the Yangtze River. It was historically developed to support regional trade and has grown into a modern port complex that facilitates the shipment of containers, bulk cargo, and ro-ro (roll-on/roll-off) goods. Its expansion has been integral to the economic development of southwestern China, connecting the region to global markets via the Yangtze River’s “Golden Waterway.”

Yuzui

Yuzui is a historic town located at the confluence of the Yangtze and Jialing Rivers in Chongqing, China. It was an important strategic and commercial hub during ancient times, particularly in the Ming and Qing dynasties, due to its advantageous position for river transport and trade. Today, it is known for its well-preserved ancient architecture and cultural relics.

Tangjiatuo

I am unable to find any significant historical or cultural information about a place named “Tangjiatuo.” It is possible this refers to a small, lesser-known locality. For an accurate summary, could you please provide more context, such as the country or region?