When officials reopened the airport on the sparsely populated Dachangshan island off China's north-east coast after a $6 million (4 million pound) refurbishment in 2008, they planned to welcome 42,000 passengers in 2010 and another 78,000 in 2015.
However, fewer than 4,000 passengers – or just a 10 a day - passed through its gates in 2013, data from China's civil aviation authority showed.
Since February last year, China has approved at least 1.8 trillion yuan in new infrastructure projects to counter a slowing economy. The approvals come just as the full costs of the underused airports, expressways and stadiums built during the last spending binge are beginning to emerge.
While construction firms profited from the boom, it saddled China's provincial governments with $3 trillion worth of debt, with the most over-exuberant seeing their local economies weaken and become imbalanced towards the building sector.
The economy in Liaoning province, which includes Dachangshan island, was one of the slowest growing in China in 2014 - GDP expanded 5.8 percent, far undershooting its 9 percent target.
"There needs to be serious discussions over the economic rationality of large-scale engineering projects. Do we really need this many high-speed lines and airports?" said Lu Dadao, an academic at the Chinese Academy of Sciences.
A government official and economist estimated in November that China has wasted an approximate 42 trillion yuan on "ineffective investment" in the five years from 2009, with the problem worsening in the last two years.
An airport, no flights
Despite its modern airport, finding a flight to Dachangshan island is not easy. Staff at Zhoushuizi International Airport in the port city of Dalian, the destination of the sole published route, said flights to the Changhai airport on Dachangshan have not operated for the last six months.
On a recent Wednesday morning, the airport's ticket counter was deserted apart from a female airport official. Still, its speckled grey marble floors were scrubbed shiny by a cleaning attendant, while the toilets were spotless.
"Call in two to three days to check if there's a flight," the official told Reuters. "The plane's under maintenance." A male colleague sat next to the baggage screening machine, head bent towards his knees, seemingly falling asleep.
Outside, there is little sign the small airport has had much impact on the island of about 30,000 inhabitants. Instead of shops or eateries, fishermen's homes surround the airport. Ferries are the preferred mode of transport to Dalian, locals said.
Undeterred, the Dalian government plans to spend 1.48 billion ($238.9 million) this year to expand the airport to accommodate 250,000 by 2020, as part of its latest drive to spur the economy and to turn the fishing outpost into a holiday destination, according to local media reports.
Wu Hong, an official from Dalian Changhai County's publicity department, said the airport expansion was meant to keep up with the island's development, adding that it received 1.1 million tourists last year.
"In gross domestic product terms, none of this is bad. It generates growth, one way or another," said J Capital Research analyst Susannah Kroeber, who has been tracking China's infrastructure build-out since 2012.
"But is it useful and an efficient use of your resources? Absolutely not."
Largest, highest, longest
Many of China's local governments set up corporations to obtain loans for massive infrastructure and real estate projects, skirting rules preventing direct borrowing while amassing a debt pile now seen as a key risk to the economy.
The results include the world's longest ocean-crossing bridge near the city of Qingdao and the highest railway track, which connects Qinghai province to Tibet. New districts built to house thousands have also been built, with some, such as Ordos in Inner Mongolia and Yujiapu in Tianjin, turning into ghost cities as China's residential property market slows.
While little official information is available on user numbers, China's expressways bled $10 billion in 2013 on toll revenue shortfalls. China Railway, which oversees the expansion of the world's longest railway network, is now 3.4 trillion yuan in debt, it said in September.
Still, there are concerns that it will be difficult to wean authorities off the addiction to over-building, particularly as signs emerge of fast-accelerating construction activity in China's inland western regions, where almost 40 percent of approved airport, railway and road projects are located.
Cement production is growing at its fastest rate in places such as Guizhou and Yunnan, two of China's poorest provinces that are in the southwest of the country, according to government data.
In northern China, where local governments are now dealing with overcapacity of steel and cement after their building booms, "you get a window into what happens after you build out pretty much all that you can possibly build," J Capital Research's Kroeber said.
"The early development of those trends...we think are starting to play out in other parts of the country now."