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Let's take a look at why the casualties were greater in the apartments in Pohang.
As the river next to the apartment overflowed, water quickly filled the parking lot, and it is analyzed that the structure of the parking lot also made evacuation difficult.
Reporter Ha-jeong Park looked into this part.
<Reporter> This
is Naengcheon, a river that flows straight through Nam-gu, Pohang-si, Gyeongsangbuk-do to Yeongilman Bay.
A road is located on both sides of the river, and apartments and houses are built on the side of the road a little lower than the road.
The distance from this cold spring to the apartment with the underground parking lot where the accident occurred is only about 50 meters.
It looks like the water level has lowered somewhat as the water of the cold spring is draining.
At the time of the heavy rain, the water filled up quickly enough to overtake all of these embankments, and water poured into the apartment complex across the street.
[Mija Kim / Pohang, Gyeongbuk: When the water came over, my heart was pounding.
In 5 or 10 minutes, this place just fills up...
.]
Normally, when it does not rain, it is 'dry', where there is little water, but flooding could not be avoided during the record torrential rain.
Some argue that the riverside construction, which was completed in 2019, may have caused flood damage.
It is said that various facilities installed along the riverside, such as walking trails and playgrounds, obstructed the flow of water.
[Pohang Citizen: There are some cases where the construction is going down and the bridge width is narrow.
There are things like that, so the water doesn't go out all the time.]
An official from Gyeongsangbuk-do explained that it was not because of construction, but because the amount of rain that fell in Pohang this time was large enough to correspond to the frequency of 500 years, so the damage occurred.
It is also necessary to look at the internal structure of the underground parking lot.
When people were trying to get out of their car and the water quickly rose, there was only one way out of the car.
It is a story that cars had to go through this entrance and form a long line to get out of the underground parking lot through the pouring rain.
[Pohang Citizen: (My husband's underground parking lot) There was no water when I entered, so I left my car on the hill from a distance of 1km, and they said that the water came close to the boat, so (water) rushed in from somewhere.]
Underground parking lot The inside was in the shape of a 'C', and both survivors were found near the entrance and exit of vehicles.
The place where the deceased 15-year-old Mo Kim was found was at the back of the U-shaped shape.
There were three stair-type entrances where people could walk up and down, but at the time of the accident, it seems that it was difficult to evacuate as a lot of water poured into them.
A situation in which torrential downpours can repeat at any time.
It seems necessary to check whether there are any problems with the river drainage and the installation of the riverbank, and whether there are any points to improve the structure of the underground parking lot.
(Video coverage: Kim Seung-tae, video editing: Lee So-young, CG: Park Cheon-woong, Ryu Sang-soo)