Earth Changes
The hole is around three feet in diameter and has been cordoned off by Garda at the scene.
It is expected to be covered later this evening and an investigation into what caused it will begin tomorrow.
An engineer at the scene said that it could have been caused by water damage to the foundations beneath the road surface.
Westbound traffic on Dame Street is currently suspended between George Street and Parliament Street and cars are being advised to use alternative routes.

A sinkhole creates dangerous conditions on the Plymouth Road bridge in Plymouth Township Wednesday, April 1, 2015. The township has announced that due to the sinkholes, the bridge will need to replaced.
The road was closed last month to repair sinkholes that appeared at the foundation of the bridge abutements.
The existing bridge will not reopen and must be replaced, according to a post on the Plymouth Township website.

A work truck from Home Service Center fell into a sinkhole around 9 a.m. Tuesday, March 31, on the 1400 block of Connell Street in Burton.
Police and road crews were dispatched around 9 a.m. Tuesday, March 31, to the 1400 block of Connell Street after Welsh's work truck became stuck in a sinkhole.
Welsh, an employee at Home Service Center, said she was searching for the house where she was hired to do some plumbing work when her truck collapsed into the street.

Dramatic images showed the major storm engulfing a number of Middle Eastern cities.
The fine dust filling the air significantly reduced visibility for motorists and made breathing outside a challenge, as hospitals reported an increase in patients suffering from respiratory problems.
Dramatic images showed the extent of the problem, and Dubai airport officials confirmed that 12 inbound flights had to be diverted to nearby airports.
Dubai is the world's busiest hub for international air traffic after it overtook London Heathrow earlier this year, and authorities warned travellers that further delays and diversions were expected.
In Abu Dhabi, the capital of the United Arab Emirates, police reported that a 24-year-old was airlifted to hospital following a serious road traffic accident caused by the reduced visibility.
The fish, scientifically known as desmodema polystictum, was spotted in Murray Ridge after the last sighting nearly five years ago. This is the first time the fish was caught in a fisherman's gillnet as it is usually found in deep, circumtropical waters.
The fisherman, Nakhuda Nisar Hussain, has been trained by the World Wide Fund-Pakistan (WWF-P) to make sure they do not harm endangered species. He was working in the area where the water was at least 1,034 metres deep when he caught the specimen. The fish measured 32 inches with flashing red fins and faint polka dots all over the body. After taking photos of the ribbonfish, he released it back into the water.
The deceased is Md Habibur Rahman, 43, son of Abdur Rashid Gazi, of Kandi village in Jhalakathi.
Cox's Bazar BGB 17 Captain Khondokar Saiful Alam said: "A BGB team conducted a special drive in the area early Thursday to catch the passengers and brokers who use the route to intrude into Malaysia."
He said Habibur got injured when wild elephant attacked him.
Meanwhile, other BGB members fired three rounds of ammunition to bring the elephant under control.
Later, the duty doctor declared Habibur dead when he was taken to Cox's Bazar Sadar Hospital.
Comment: Interestingly, from the same region of Bangladesh came the following report just 5 days ago: Elephant attacks 2 children and kills boy in Bangladesh
The tusker called Shekharan alias Kichan, had been chained at Babu's property during the last few days as he was not well. Shekharan again showed symptoms of 'musth' when he was moving timber at Muppathekkar, Mangalagiri, near Theekkoy. Babu, who came to know about it, arrived at the spot and went near the elephant with some fruit to placate it. The elephant gored Babu who died on the spot. Although the first mahot, also named Babu, was riding the elephant, he wasn't able to control the violent animal.
The animal then ran back to the place where he was chained in the morning through the road. Although the mahot, and Shaul from Erattupetta chained the elephant again, it kept on trying to break free. It even uprooted rubber trees near it. After that, the elephant let the mahout come down. The animal was calmed down after a tranquilliser shot was fired at it by Dr. Sabu Issac of Elephant Squad, Kottayam.
It was seen on this White Mountain peak on Wednesday, March 25.
This winter, there have been sporadic sightings of the majestic arctic owl in places like the Seacoast and near airports in the southeastern part of the state.
But their numbers were far from those seen in 2014.
According to Cornell University, "last year's blizzard of snowy owls in the Great Lakes states, the Northeast, and down the Atlantic coast was epic, an unprecedented irruption."
At about 11:16 a.m. Wednesday, deputies received a call of a 4-year-old boy being severely bitten by a 1 1/2-year-old dog.
When deputies and medical staff arrived at the home, they found the boy with severe bite wounds to his face.
Joint Animal Services Officer Kenneth Maynard was called to seize the dog. He said it became a tense situation.
"I wasn't sure what he was going to do," Maynard said late Wednesday. "He had that look like he was going to attack me, and you're going into a situation where the dog just attacked a kid."
Governor Jerry Brown (D) made the announcement Wednesday at the Phillips snow course, near Sierra-at-Tahoe ski resort, during the state's annual snow survey, where state officials measure the snowpack in the Sierra Nevada mountain range. Early data shows the snowpack in the range is lower than any year since 1950, and it was the first time in 75 years there was no snow at the Phillips location, which averages more than 66 inches on April 1, KTLA reported.
"Today we are standing on dry grass where there should be five feet of snow. This historic drought demands unprecedented action," Brown said. "Therefore, I'm issuing an executive order mandating substantial water reductions across our state. As Californians, we must pull together and save water in every way possible."
Comment: No water is a really, really bad thing. California has been an anchor in the US economy. In 2012 it had the 10th largest economy in the world out of 190 nations. Ranking: USA, China, Japan, Germany, France, UK, Brazil, Russia, Italy, (California). It is an agricultural giant that will be brought to its knees by this "current reversal" of fortune. Will the drought end in 2016? Perhaps a snowball's chance in hell...












Comment: Apparently the hole may have exposed a tunnel through which 19th century politicians would sneak in and out of a brothel! Nowadays, of course, they don't bother going to such lengths to hide their predilections.
See also: Truck becomes stuck in sinkhole in Bronx