Question: What is the name of this ongoing construction project, which consists of a series of bridges and tunnels and located some 32 km south of the planned Shenzhen-Zhongshan Bridge?

Context paragraphs:
Zlatitsa: Zlatitsa (Bulgarian: Златица ) is a town and the seat of the Zlatitsa Municipality in southern Bulgaria located in the Zlatitsa-Pirdop valley.  It lies between Stara Planina to the north and Sredna Gora to the south at 680 m above sea level.  It is situated immediately south in the lap of the Zlatitsa -Teteven Mountain.  Zlatitsa is situated 75 km east of Sofia, 27 km south of Etropole, 32 km north of Panagiurishte, 2 km west of Pirdop and 32 km northwest of Koprivshtitsa.  The population is 5,286.

Shenzhen–Zhongshan Bridge: The Shenzhen–Zhongshan Bridge is a planned construction project to connect two major cities on the Pearl River Delta (PRD) in China: the city of Shenzhen on the eastern side of the PRD, and the city of Zhongshan on the western side.  It will consist of a series of bridges and tunnels, starting from Bao'an International Airport on the Shenzhen side.  The proposed 51 km eight-lane link is scheduled to be completed in 2021 and is expected to cost around US$4.83 billion.  It will be located about 27 km downriver from the Humen Bridge, the only current bridge crossing of the delta, and some 32 km north of the new Hong Kong–Zhuhai–Macau Bridge, which is currently under construction and will link the cities of Hong Kong, Zhuhai, and Macau at the southern end of the PRD, scheduled for completion in 2016.

Tolderol, South Australia: Tolderol is a locality in the Australian state of South Australia located about 67 km south of the Adelaide city centre, 32 km north-east of the centre of Goolwa and 32 km northeast of the centre of Murray Bridge on the west coastline of Lake Alexandrina.

Gryfino County: Gryfino County (Polish: "powiat gryfiński" ) is a unit of territorial administration and local government (powiat) in West Pomeranian Voivodeship, north-western Poland, on the German border.  It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998.  Its administrative seat and largest town is Gryfino, which lies 20 km south of the regional capital Szczecin.  The county contains five other towns: Chojna, 32 km south of Gryfino, Mieszkowice, 52 km south of Gryfino, Trzcińsko-Zdrój, 33 km south of Gryfino, Cedynia, 45 km south-west of Gryfino, and Moryń, 44 km south of Gryfino.

Helix Bridge: The Helix Bridge, officially The Helix, and previously known as the Double Helix Bridge, is a pedestrian bridge linking Marina Centre with Marina South in the Marina Bay area in Singapore.  It was officially opened on 24 April 2010 at 9 pm; however, only half was opened due to ongoing construction at the Marina Bay Sands.  It is located beside the Benjamin Sheares Bridge and is accompanied by a vehicular bridge, known as the Bayfront Bridge.  The entire bridge was opened on 18 July 2010 to complete the entire walkway around Marina Bay.

Hong Kong–Zhuhai–Macau Bridge: The Hong Kong–Zhuhai–Macau Bridge (HKZMB) () is an ongoing construction project which consists of a series of bridges and tunnels crossing the Lingdingyang channel that will connect Hong Kong, Macau and Zhuhai, three major cities on the Pearl River Delta in China, the final tunnel joint having been installed on the 2nd of May, 2017.  The 50 km link is expected to cost US$10.6 billion (HK$83 billion).  With its length, it would become one of the landmarks within the area.  The longest bridge section will be 29.6 km long and will include three cable-stayed spans between 280 and .

Andrićgrad: Andrićgrad (, meaning "Andrić's town") is the name of an ongoing construction project located in Višegrad, Bosnia and Herzegovina by director Emir Kusturica.  The town is dedicated to Yugoslav novelist Ivo Andrić, Nobel prize winner.

Construction of Arlington Memorial Bridge: The construction of Arlington Memorial Bridge was a seven-year construction project in Washington, D.C., in the United States to construct the Arlington Memorial Bridge across the Potomac River.  The bridge was authorized by Congress in February 1925, and was completed in January 1932.  As a memorial, its decorative features were extensive and intricate, and resolving the design issues over these details took many years.  Tall columns and pylons topped by statuary, Greek Revival temple-like structures, and statue groups were proposed for the ends of the bridge.  Carvings and inscriptions were planned for the sides of the bridge, and extensive statuary for the bridge piers.

Vehicular Security Center: The World Trade Center Vehicle Security Center and Tour Bus Parking Facility, or simply the Vehicular Security Center (VSC), is a secure complex for truck delivery and underground parking at the World Trade Center.  The entrance to the VSC will be located at street-level along the southern-edge of the National September 11 Memorial & Museum on Liberty Street.  The VSC will be connected via underground tunnels that feed the entire 16 acre WTC complex, linking the security checkpoint at its entrance with the buildings and services at the complex requiring vehicular services.  Underground garages will provide parking for tenants, visitors, and tour buses.  The underground complex and the checkpoint is completed, but it has not yet opened due to the ongoing construction of the WTC.  It will open once the surrounding construction of the WTC is finished.

Alpaslan-2 Dam: The Alpaslan-2 Dam is an embankment dam currently under construction on the Murat River in Muş Province, Turkey.  The dam is located about 32 km north of the provincial capital, Muş.  The primary purpose of the dam is hydroelectric power production and irrigation.  Its power station will have an installed capacity of 280 MW and the reservoir will help irrigate 78000 ha of land.  Enerjisa Power Generation Inc. acquired the license for the power station from Özışık İnsaat & Enerji in April 2011 and Yenigün Construction started excavating the diversion tunnels May 2012.  The diversion tunnels are expected to be complete by the end of 2012.  In late May 2013 Pöyry was awarded the detailed design of the dam, power station, spillway and switch yard.  Enerjisa expects the project to be complete in 2016.

Supporting paragraphs: Shenzhen–Zhongshan Bridge Hong Kong–Zhuhai–Macau Bridge
Answer: Hong Kong–Zhuhai–Macau Bridge