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Seongsu Bridge disaster

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111-608: The Seongsu Bridge disaster was a deadly bridge collapse that occurred on the morning of October 21, 1994 in Seoul , South Korea. 32 people died and 17 were injured when a section of the upper truss of the Seongsu Bridge collapsed onto the Han River . A combination of faulty welding , rusted extension hinges, and insufficient maintenance resulted in the structural failure of the bridge. The Seongsu Bridge opened in 1979 and

222-464: A green belt aimed at preventing the city from sprawling out into neighboring Gyeonggi Province. These areas are frequently sought after by people looking to escape from urban life on weekends and during vacations. Air pollution is a major issue in Seoul. According to the 2016 World Health Organization Global Urban Ambient Air Pollution Database, the annual average PM2.5 concentration in 2014

333-455: A 12.85% increase from June 2010. The next largest group was Chinese citizens who were not of Korean ethnicity; 29,901 of them resided in Seoul. The next highest group consisted of the 9,999 United States citizens who were not of Korean ancestry. The next highest group were Taiwanese citizens, at 8,717. The two major religions in Seoul are Christianity and Buddhism . Other religions include Muism (indigenous religion) and Confucianism . Seoul

444-513: A clear legal framework of responsibility, publicly checkable results and a major focus on reduction of transport pollutants. In July 2020, South Korea, then the 11th largest world economy, announced a US$ 35 billion position on ending investment in coal. In November 2020, South Korea committed to a carbon-neutral economy by 2050. Between 2005 and 2021 annual concentration levels of small particulate matter (PM10) fell by 30-40 % in Seoul, whilst concentrations of larger particulate matter (PM 2.5) in

555-466: A cost of 11.58 billion won (equivalent to ₩69 billion in 2017). At the time, foreign firms were excluded from construction contracts, stretching thin domestic construction companies who faced increasing demand as a result of military dictator Park Chung Hee 's development plan south of the Han River . The cantilever bridge had four lanes of traffic, a width of 19.4 m (64 ft), and spanned 1,160 m (3,810 ft). The speed limit on

666-691: A fine of 5 million won. The former head of the city's road maintenance office Kim Jae-seok ( 김재석 ) was sentenced to one year and six months imprisonment and three years probation. Construction supervisors for the city of Seoul Kim Seok-gi ( 김석기 ) and Lee Woo-yeon ( 이우연 ) were sentenced to one year and six months imprisonment and three years' probation while Lee was sentenced to one year imprisonment and two years' probation. Former Vice President Kim Myeong-nyeon ( 김명년 ) and public affairs manager Jang Rae-ik ( 장래익 ) of Dong Ah Construction were both sentenced to two years imprisonment and five years' probation. Technical director of Bupyeo steel factory Lee Kyu-dae ( 이규대 )

777-695: A fire on board the Kukdong-ho sightseeing boat 1987, the sinking of MV Seohae , the crash of Asiana Airlines Flight 733 and the Gupo Station rail accident in 1993, and the Daegu gas explosions and Sampoong Department Store collapse in 1995. Construction for the Seongsu Bridge began on April 9, 1977, and was completed on October 15, 1979, by the Dong Ah Construction Industrial Company  [ ko ] at

888-470: A native Korean (as opposed to Sino-Korean ) common noun simply meaning 'capital city.' The word seoul is believed to have descended from Seorabeol (서라벌; historically transliterated into the Hanja form 徐羅伐 ), which originally referred to Gyeongju , the capital of Silla . Wiryeseong ( 위례성 ; 慰禮城 ), the capital settlement of Baekje , was located within the boundaries of modern-day Seoul. Seoul

999-526: A new capital. After several governmental debates, Yi Seong-gye chose Hanyang (Sindo) instead of Muak in September 1394. As Joseon's new capital, Hanyang was planned as a geographic embodiment of Korean Confucianism . Construction of the city began in October 1394. During its early construction stages, some major palaces, including Gyeongbokgung , were finished in 1395. The Fortress Wall surrounding Hanyang

1110-484: A report after seeing cracks in the bridge, but the city government dismissed the reports, saying that the crack had been repaired through the installation of the steel plate. At 7:38 a.m., during the beginning of the morning rush hour , a 48 m (157 ft) span on the north side of the Seongsu Bridge suddenly gave way into the Han River 20 m (66 ft) below. Survivors of the collapse compared

1221-812: Is an exit exam for graduating from high school and many students proceeding to the university level are required to take the College Scholastic Ability Test that is held every November. Although there is a test for non-high school graduates, called school qualification exam, most Koreans take the test. Seoul is home to various specialized schools , including three science high schools, and six foreign language High Schools. Seoul Metropolitan Office of Education comprises 235 College-Preparatory High Schools, 80 Vocational Schools, 377 Middle Schools, and 33 Special Education Schools as of 2009 . Seongdong District Seongdong District ( Korean :  성동구 ; RR :  Seongdong-gu )

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1332-492: Is evidence of the consumption of cooked grain and fish by 3,000 B.C. Around 1,500 B.C., communities began transitioning into the Bronze Age and farming at scale. Due to modern Seoul's significant urbanization, Amsa-dong Neolithic Site  [ ko ] is the only known major archaeological site in Seoul where Stone Age materials have been found, although such materials have also been found in minor sites throughout

1443-441: Is headed by a mayor and three vice mayors, and is divided into 25 autonomous districts and 522 administrative neighborhoods. Seoul is divided into 25 " gu " ( 구 ; 區 ) (district). The gu vary greatly in area (from 10 to 47 km or 3.9 to 18.1 sq mi) and population (from fewer than 140,000 to 630,000). Songpa has the most people, while Seocho has the largest area. The government of each gu handles many of

1554-453: Is hereby constituted a municipal corporation to be known as SEOUL. The boundaries of the municipal corporation are the present limits of the City of Seoul consisting of the following eight districts: Chong Koo , Chong No Koo , Sur Tai Moon Koo , Tong Tai Moon Koo , Sung Tong Koo , Ma Po Koo , Yong San Koo , and Yang Doung Po Koo , and as such may be extended as provided by law. Seoul under

1665-708: Is home to one of the world's largest Christian congregations, Yoido Full Gospel Church , which has around 830,000 members. According to the 2015 census, 10.8% of the population follows Buddhism and 35% follows Christianity (24.3% Protestantism and 10.7% Catholicism). 53.6% of the population is irreligious. Seoul is home to the world's largest modern university founded by a Buddhist Order, Dongguk University . Compulsory education lasts from grade 1–9 (six years of elementary school and three years of middle school). Students spend six years in elementary school, three years in middle school, and three years in high school. Secondary schools generally require students to wear uniforms. There

1776-525: Is in the northwest of South Korea. Seoul proper comprises 605.25 km (233.69 sq mi), with a radius of approximately 15 km (9 mi), roughly bisected into northern and southern halves by the Han River . The river is no longer actively used for navigation, because its estuary is located at the borders of the two Koreas, with civilian entry barred. There are four main mountains in central Seoul: Bugaksan , Inwangsan , Naksan and Namsan . The Seoul Fortress Wall , which historically bounded

1887-664: Is not a Sino-Korean word, 'Seoul' has no inherently corresponding Hanja ( Chinese characters used in the Korean language). Instead of phonetically transcribing 'Seoul' to Chinese, in the Chinese-speaking world, Seoul was called Hànchéng ( 汉城 ; 漢城 ), which is the Chinese pronunciation of Hanseong . On 18 January 2005, the Seoul Metropolitan Government changed Seoul's official Chinese name from

1998-457: Is one of the 25 gu which make up the city of Seoul , South Korea. It is situated on the north bank of the Han River . It is divided into 20 dong (neighbourhoods). Seongdong District consists of 20 administrative dongs (haengjeong-dong, 행정동 ) When Seoul was expanding outward on its size, many parts of Gyeonggi Province were merged to Seongdong District. However, due to its extraordinarily huge size, Seoul Metropolitan Government divided

2109-861: Is the seat of the South Korean government . Seoul's history traces back to 18 BC when it was founded by the people of Baekje , one of the Three Kingdoms of Korea. During the Joseon dynasty, Seoul was officially designated as the capital, surrounded by the Fortress Wall of Seoul. In the early 20th century, Seoul was occupied by the Japanese Empire , temporarily renamed " Keijō " ("Gyeongseong" in Korean). The Korean War brought fierce battles, with Seoul changing hands four times and leaving

2220-614: The 2002 FIFA World Cup . Seoul is geographically set in a mountainous and hilly terrain, with Bukhansan positioned on its northern edge. Within the Seoul Capital Area lie five UNESCO World Heritage Sites: Changdeokgung , Hwaseong Fortress , Jongmyo , Namhansanseong , and the Royal Tombs of the Joseon dynasty . Furthermore, Seoul has witnessed a surge in modern architectural development, with iconic landmarks including

2331-545: The Changseon Bridge  [ ko ] ( 창선대교 ; 昌善大橋 ) in Namhae , South Gyeongsang Province , collapsed under similar circumstances as the Seongsu Bridge. At the time, bids for construction projects frequently went to companies that promised the fastest construction, incentivizing cheap and rushed construction at the expense of safety. Dong Ah Construction's bid for the Seongsu Bridge's construction contract

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2442-577: The Gangnam region , the number of vehicles using the bridge increased exponentially to 160,000 vehicles per day. The bridge connected to the Seoul Olympic Highway to the south. During the 15 years from its construction to its collapse, the Seongsu Bridge had never been subject to a detailed inspection because it was less than 20 years old and inspections had focused solely on aging structures. On October 20, 1994, at 9:30 p.m.  KST

2553-707: The Hanja ' 漢 ' (a transliteration of a native Korean word 한 ; han ; lit.  great), which may also refer to the Han people or the Han dynasty in Chinese and is associated with 'China' in Japanese context. After World War II and the liberation of Korea , Seoul became the official name for the Korean capital. The Standard Korean Language Dictionary still acknowledges both common and proper noun definitions of seoul . Unlike most place names in Korea, as it

2664-761: The Korean Navy arrived at the scene to recover bodies from the river. In response to the collapse, a total of 1,500 people were mobilized from the Seoul Metropolitan Police Agency , the Korean Armed Forces , and the Seoul Metropolitan Fire Service . The rescue team included 150 underwater exploration special forces from the fire service. Rescue efforts were hampered by rain, tides, and heavy traffic. Officials initially stated that they believed

2775-755: The N Seoul Tower , the 63 Building , the Lotte World Tower , the Dongdaemun Design Plaza , Lotte World , the Trade Tower , COEX , IFC Seoul , and Parc1 . Seoul was named the World Design Capital in 2010 and has served as the national hub for the music, entertainment, and cultural industries that have propelled K-pop and the Korean Wave to international prominence. Traditionally, seoul ( 서울 ) has been

2886-633: The Second Sino-Japanese War , Yeongdeungpo District was annexed into Seoul on April 1, 1936, to function as an industrial complex for steel and other metalworking factories. The city was liberated by U.S. forces at the end of World War II . In 1945, following the liberation from Japanese colonial rule, the American military assumed control of Korea, including its capital city, then referred to as Kyeongseongbu in line with Japanese nomenclature. The U.S. military government published

2997-517: The rapid development of South Korea since the 1960s had brought both positive and negative outcomes, and that his government would promise to minimize all risks to Koreans. He then apologized, stating that the disaster was the result of his own lack of virtue and that he recognized the issues in the management system brought to light by the collapse. Nevertheless, the Sampoong Department Store collapsed nine months later, becoming

3108-491: The 17th century. Thus, the Joseon capital of Hanseong was widely referred to as the seoul. Due to its common usage, French missionaries called the Joseon capital Séoul (/se.ul/) in their writings, hence the common romanization Seoul in various languages today. Under subsequent Japanese colonization , Hanseong was renamed as Keijō (京城, literally 'capital city') by the Imperial authorities to prevent confusion with

3219-403: The 1960s, urbanization also accelerated and workers began to move to Seoul and other larger cities. In 1963, Seoul went through two major expansions that established the shape and size of the present-day Seoul—barring minor adjustments to the borders later in 1973 and 2000. In August 1963, Seoul annexed parts of Yangju-gun , Gwangju-gun , Siheung-gun , Gimpo-gun , and Bucheon-gun , expanding

3330-554: The 1988 Summer Olympics, is the largest park. The areas near the stream Tancheon are popular for exercise. Cheonggyecheon also has spaces for recreation. In 2017 the Seoullo 7017 Skypark opened, spanning diagonally overtop Seoul Station. There are also many parks along the Han River , such as Ichon Hangang Park, Yeouido Hangang Park, Mangwon Hangang Park, Nanji Hangang Park, Banpo Hangang Park, Ttukseom Hangang Park and Jamsil Hangang Park. The Seoul National Capital Area also contains

3441-406: The 5th century. However, according to Samguk sagi , both Baekje and Silla described the land as frontier border of Baekje, not as the capital region. Moreover, Jinheung Taewang Stele found at current day Bukhansan tells that the place was underdeveloped as of 6th century AD, suggesting that the first capital Wiryeseong was not located in or nearby Seoul. In July or August 553, Silla took

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3552-521: The Charter of the City of Seoul in the official gazette on October 10 of the following year. The charter declared Seoul as the name of the city and established it as a municipal corporation . Seoul's status as a municipal corporation mirrored the independent cities in the United States that do not belong to any county, and Seoul was established as an independent administrative unit, separate from

3663-515: The Dongbu Construction office in Seoul, was sentenced to one year six months imprisonment, having previously been serving a suspended sentence of four years' probation from two years imprisonment. Sentences for all other defendants were reversed to their original lengths of ten months to three years imprisonment, two to five years' probation, and fines of 5 million won each (equivalent to ₩9 million in 2017). In December 1995, between

3774-514: The Dongbu Corporation were additionally charged with forgery of public documents, use of forged public documents, forgery of private documents, and use of forged private documents. Defendants from Dong Ah Construction argued that the five-year statute of limitations for negligent manslaughter had passed because the bridge had been built 15 years ago. However, the judge ruled that the statute of limitations for criminal negligence began on

3885-592: The Improvement of Air Quality in the Seoul Metropolitan Area" was passed in December 2003. Its 1st Seoul Metropolitan Air Quality Improvement Plan (2005–2014) focused on improving the concentrations of PM10 and nitrogen dioxide by reducing emissions. As a result, the annual average PM10 concentrations decreased from 70.0 μg/m in 2001 to 44.4 μg/m in 2011 and 46 μg/m in 2014. As of 2014,

3996-643: The North Koreans in the June 1950 First Battle of Seoul , recaptured by UN forces in the September 1950 Second Battle of Seoul , falling to a combined Chinese-North Korean force in the January 1951 Third Battle of Seoul , and finally being recaptured once more by UN forces in Operation Ripper during the spring of 1951. The extensive fighting left the city heavily damaged after the war. The capital

4107-451: The Seongsu Bridge to traffic within three months, this plan was reversed following public outcry. Starting on April 26, 1995, the remainder of the bridge was dismantled, and construction for the new bridge began in March 1996 under Hyundai Engineering & Construction . Construction for the replacement bridge would cost 78 billion won (equivalent to ₩134 billion in 2017), about 6.8 times

4218-620: The Seongsu Bridge, along with the Dongho Bridge and the Hangang Bridge, suffered from rushed construction. In their report, KBS News noted that severely rusted steel on the bridges had been painted over, bolts were missing from the bridges, and segments of the bridges were only welded on the outside. Following the collapse, it was also revealed that the Seoul Metropolitan Government had planned to expand

4329-579: The Seoul Capital Area, which has major technology hubs, such as Gangnam and Digital Media City. Seoul is ranked seventh in the Global Power City Index and the Global Financial Centres Index , and is one of the five leading hosts of global conferences. The city has also hosted major events such as the 1986 Asian Games , the 1988 Summer Olympics , and the 2010 G20 Seoul summit , in addition to three matches at

4440-735: The U.S. military government between 1945 and 1948 was much smaller than it is today. It only covered the Fortress Wall , marked by the Eight Gates , and the districts incorporated during Japanese rule to prosecute imperial Japan's war efforts. During the Korean War , Seoul changed hands between the Soviet- and Chinese-backed North Korean forces and the American-backed South Korean forces four times: falling to

4551-509: The annual average PM10 concentration was still at least twice than that recommended by the WHO Air Quality Guidelines. The 2nd Seoul Metropolitan Air Quality Improvement Plan (2015–2024) added PM2.5 and ozone to its list of managed pollutants. Investment in air quality improvement between 2007 and 2020 in the order of US$ 9 billion on the part of three key local authorities, namely Gyeonggi, Incheon and Seoul, delivered

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4662-471: The appeals court reversed the lower court's ruling, convicting Shin Dong-hyun and sentencing him to two years imprisonment. Former production manager of Bupyeo Steel factory Park Hyo-su ( 박효수 ; 朴孝洙 ) was sentenced to two years imprisonment, having previously been serving a suspended sentence of five years' probation from three years imprisonment. Yeo Yong-won ( 여용원 ; 呂勇元 ), the former director of

4773-517: The area of approximately 4 km (2.5 miles) radius surrounding the Fortress Wall (i.e., Outer old Seoul ; 성저십리 ; 城底十里 ). On October 1, 1910, Imperial Japan demoted Seoul as no different than any other city within the Gyeonggi Province . After Imperial Japan's redistricting, Seoul only included the area inside the Fortress Wall and present-day Yongsan District . In the 1930s, as part of Imperial Japan's war efforts leading up to

4884-546: The beams were 18mm thick. The white paper further notes that had the Seoul Metropolitan Government and the Dongbu Corporation properly inspected the bridge and carried out basic repairs, the collapse would have been unlikely to occur. The report concluded that as a result of the poor construction and maintenance of the bridge, in the worst case scenario, the collapse of the bridge could have occurred within three years of construction. The white paper found no flaws in

4995-673: The bridge from four to five lanes through a reversible lane . On July 13, 1995, the Seoul District Prosecutor's Office published the 471-page White Paper on the Activities of the Seongsu Bridge Collapse Incident Investigation Team , analyzing the causes of the bridge collapse. The white paper concludes that the direct cause of the collapse was the poor welding of the vertical members of the bridge, which connected

5106-487: The bridge had become heavily rusted. At the time, due to the lack of domestic technical skills in steel plate welding, Dong Ah Construction hired a Zainichi Korean to manage the Bupyeo steel factory ( 부평공장 ). However, when his insistence on inspecting the welds led to delays, he was fired. The original white paper was criticized for publishing the names, genders, resident registration numbers , addresses, and occupations of

5217-659: The bridge to collapse. Between the appeals court ruling and the Supreme Court ruling, one defendant died. On November 28, 1997, the Supreme Court upheld the convictions of all 16 defendants and accepted the lower court's ruling that the Dong Ah Construction Industrial Company was guilty of criminal negligence in its poor construction of the bridge. An estimated 5,000 vehicles had to be redirected onto arterial roads, causing traffic congestion lasting until 11 p.m. that night. Following

5328-575: The bridge was 60 km/h (37 mph). The bridge was praised for its focus on its aesthetics in addition to functional considerations, setting it apart from other bridges built at the time. The bridge became the 11th bridge constructed over the Han River and alleviated traffic on the nearby Yeongdong and Hannam bridges. Two years earlier, the Second Haengju Bridge collapsed during construction with no casualties. Later that year,

5439-555: The bridge. Sentences varied from ten months to three years imprisonment, but were suspended by the judge who argued that the defendants had already served six months and should not be punished further for poor construction that had been carried out 15 years ago. Seoul District Prosecutors appealed the decisions, and the case was taken to the Seoul Central District Court. The criminal appeal was held under Judge Han Jung-duk ( 한정덕 ; 韓正悳 ). On June 11, 1997,

5550-477: The city Gyeongseong ("Kyongsong" in Korean and " Keijō " in Japanese). The city saw significant transformation under Japanese colonial rule. Imperial Japan removed the city walls, paved roads, and built Western-style buildings. Seoul was deprived of its special status as the capital city and downsized under imperial Japan, compared to the traditional notion among people of the Joseon dynasty that Seoul included

5661-458: The city as the provincial capital. Based on the naming system, the actual name of Han River during this time was likely Namcheon (Nam River) itself or should have the word ending with "cheon" ( 천 ; 川 ) not "gang" ( 강 ; 江 ) nor "su" ( 수 ; 水 ). In addition, "Bukhansan" Jinheung Stele clearly states that Silla had possession of Hanseong (modern day Pyongyang ), thus Bukhansan has to be located north of Hanseong. Modern day Pyongyang

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5772-423: The city mostly in ruins. Nevertheless, the city has since undergone significant reconstruction and rapid urbanization. Seoul was rated Asia's most livable city, with the second-highest quality of life globally according to Arcadis in 2015 and a GDP per capita (PPP) of approximately $ 40,000. 15 Fortune Global 500 companies, including industry giants such as Samsung , LG , and Hyundai , are headquartered in

5883-533: The city, often through rescue archaeology . Seoul is first recorded as Wiryeseong, the capital of Baekje (founded in 18 BC) in the northeastern area of modern Seoul. There are several city walls remaining in the area that date from this time. Pungnaptoseong , an earthen wall located southeast Seoul, is widely believed to have been at the main Wiryeseong site. As the Three Kingdoms competed for this strategic region, control passed from Baekje to Goguryeo in

5994-482: The city, goes over these mountains. The city is bordered by eight mountains, as well as the more level lands of the Han River plain and western areas. Seoul has a large quantity of parks. One of the most famous parks is Namsan Park , which offers recreational hiking and views of the downtown Seoul skyline, especially via its N Seoul Tower . Seoul Olympic Park , located in Songpa District and built to host

6105-464: The collapse occurred as a result of long-term excessive load on the bridge, culminating in the fracture of a rusted connection hinge. Vehicles carrying loads greater than their maximum capacity were regularly passing through the bridge. This led to a crackdown on overloaded vehicles over the Hangang Bridge out of fear of a similar collapse. A KBS News investigation the following day found that

6216-508: The collapse reportedly reduced the number of vehicles on the road at the time. The collapse sent two cars and the police van down with the bridge, while an additional two cars fell into the river. The Number 16 bus operated by the Hansung Transportation Company  [ ko ] was traveling North from Seoul Grand Park to Beon-dong and had nearly crossed the span when the bridge collapsed. The collapse caused

6327-472: The collapse, prosecutors launched a criminal investigation into Dong Ah Construction. Four days later, prosecutors found damage reports submitted in February and April to the Seoul Metropolitan Government by the Dongbu Corporation, which was responsible for bridge maintenance and repair. These reports stated the steel girders supporting the Seongsu Bridge were in urgent need of repair and included photographs of

6438-483: The collapse. The Mayor of Seoul Lee Won-jong  [ ko ] and his successor Woo Myoung-kyu  [ ko ] both resigned in response to the disaster. On November 10, 2000, the Dong Ah Group, the parent company of Dong Ah Construction, filed for bankruptcy and the company dissolved on May 11, 2001. The collapse was part of a string of disasters during the modernization of South Korea , including

6549-541: The control of the region from Baekje, and the city became a part of newly established Sin Province ( 신주 ; 新州 ). Sin (新) has both meaning of "New" and "Silla", thus literally means New Silla Province. In November 555, Jinheung Taewang made a royal visit to Bukhansan, and inspected the frontier. In 557, Silla abolished Sin Province, and established Bukhansan Province ( 북한산주 ; 北漢山州 ). The word Hanseong ( 한성 ; 漢城 ; lit.  Han Fortress) appears on

6660-417: The country and according to satellite data, the persistent carbon dioxide anomaly over the city is one of the strongest in the world. Air quality is monitored by geo-stationary satellite measurements centred on Korea and its immediate neighbours. In January 2024 Seoul Metro , whose passengers at the time numbered approximately 7 million a day, announced plans for extensive pollution reduction measures across

6771-523: The current Ichon-dong , the Banpo apartment complex , Apgujeong-dong and Jamsil-dong . Until 1972, Seoul was claimed by North Korea as its de jure capital, being specified as such in Article 103 of the 1948 North Korean constitution . Seoul was the host city of the 1986 Asian Games and 1988 Summer Olympics as well as one of the venues of the 2002 FIFA World Cup . South Korea's 2019 population

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6882-634: The damage on the bridge. On October 26, prosecutors arrested the head of the city government's construction office and six other Seoul City officials for falsely reporting that the bridge was safe without performing the required daily checks. In the end, the Seoul District Prosecutor's Office's investigation would lead to 17 arrests in connection to the collapse: four Seoul Metropolitan Government officials, seven Dongbu Corporation officials, and six Dong Ah Construction officials. Prosecutors decided against arresting former mayor of Seoul Lee Won-jong  [ ko ] , stating that they did not find evidence that he

6993-404: The date of the crash and not the date of construction, a decision appellate courts would later uphold. The officials testified that they were not aware of any poor construction. On April 20, 1995, the district court convicted 16 defendants while acquitting construction site manager Shin Dong-hyun ( 신동현 ; 申東賢 ), ruling that Shin was not in a position to be aware of any defects in the welding of

7104-585: The deadliest peacetime disaster in South Korean history . The recurrence of major disasters during the Kim Young-sam administration gave his government the popular nickname " Disaster Republic  [ ko ] ". In response to the bridge disaster, opposition parties in the National Assembly called on members of Kim's cabinet to resign, raising motions of no confidence which were voted down. The Seoul Citizen's Day celebrations set for

7215-428: The decision of the first court and the appeals court, an amendment to the law reduced the punishment for forging public documents to a fine. In particular, the former head of the city's road construction office Lee Shin-young ( 이신영 ; 李臣永 ) was the only defendant not convicted with negligent manslaughter. Thus, in June 1997, Lee's sentence was reduced from two years' probation, suspended from one year imprisonment, to

7326-411: The design of the bridge itself. In addition, the frequent use of inexperienced subcontractors, the lack of a system to monitor discrepancies in design and construction, the management of construction by non-technical officials, and rampant corruption were all listed as exacerbating factors in the collapse. Maintenance of the bridge was neglected due to limited fiscal resources, and connecting pins used in

7437-515: The disaster have been reported to have had permanent psychological trauma from the incident. The collapse prompted the Seoul Metropolitan Government to begin a more thorough safety assessment of the 14 other bridges that crossed the Han River and into whether the Seongsu Bridge could be safely fixed. As a result of these investigations, the Dangsan Railway Bridge was closed for reconstruction on December 31, 1996, being re-opened to

7548-544: The disaster, Prime Minister Lee Yung-dug offered his resignation, but President Kim Young-sam declined, stating that changing safety measures was more important than changing people. In contrast, the resignation offer of Lee Won-jong, the Mayor of Seoul , was accepted at 7 p.m. that day. He would be replaced by Governor of North Gyeongsang Province Woo Myoung-kyu  [ ko ] on October 31 before being replaced again by Choi Byung-ryeol 11 days later, when it

7659-459: The early 1990s, the reasons being the high costs of living, urban sprawling to Gyeonggi region's satellite bed cities and an aging population. As of 2016, the number of foreigners living in Seoul was 404,037, 22.9% of the total foreign population in South Korea. As of June 2011, 186,631 foreigners were Chinese citizens of Korean ancestry. This was an 8.84% increase from the end of 2010 and

7770-407: The evening before the collapse, workers for the Seoul Metropolitan Government laid a small steel plate onto a seam on the bridge, 50 m (160 ft) away from the site of the eventual collapse, to cover up a large gap that had formed at the joint. Repairs for the bridge had been scheduled for that day but were postponed due to bad weather. On Friday, October 21, at 6:00 a.m., drivers filed

7881-416: The existing provinces. The Korean version of the Charter translated " municipal corporation " as " special free city " ( 특별자유시 ; 特別自由市 ), which later became special metropolitan city (or special metropolitan city; 특별시 ) in the Local Autonomy Act of 1949  [ ko ] . Seoul has retained its status as the only special metropolitan city in South Korea (i.e., 서울특별시 ). The City of Seoul

7992-634: The families of the 32 people who died in the incident. In addition, the Cabinet paid for the medical expenses of the injured and compensated them in consultation with their families, with the exception of the police officers. The Temporary Workers Friendly Association of Korea ( 비근로자 한·비친선협 ) and the Lotte Welfare Foundation also provided compensation to the family of Adele Aida through the Philippine embassy. Many of those who survived

8103-625: The first responders drew public ire and was the result of call center employees mistaking emergency calls for prank calls . These rescue operations were carried out by 30 officers and members of the Seoul Metropolitan Police and the Han River Patrol ( 한강순찰대 ) and consisted of two helicopters, three barges and 10 yawls . At 9:40 a.m., 20 divers from the Sea Salvage & Rescue Unit  [ ko ] of

8214-515: The fortress), and areas 10 Ri (Korean mile) around the Fortress Wall, which were named as Seongjeosimni ( Korean :  성저십리 ; Hanja :  城底十里 ; lit.  10 Ris around the fortress). The Doseong-an area later gained the informal but popular name Sadaemun-an ( 사대문 안 ), which literally means 'areas inside of the Four Great Gates ', and became the one and only downtown (city center) of Hanyang city . In

8325-479: The functions that are handled by city governments in other jurisdictions. Each gu is divided into " dong " ( 동 ; 洞 ), or neighborhoods. Some gu have only a few dong s while others like Jongno District have a very large number of distinct neighborhoods. Seoul has 423 administrative dongs ( 행정동 ) in total. Seoul proper is noted for its population density , which is almost twice that of New York City and eight times greater than Rome . Its metropolitan area

8436-405: The historic Hànchéng to Shǒu'ěr ( 首尔 ; 首爾 ). Shǒu'ěr is a phono-semantic match incorporating both sound and meaning (through 首 meaning 'head', 'chief', 'first'). There is evidence of human habitation in the area now corresponding to Seoul from 30,000 to 40,000 years before the present. Around 4,000 B.C., people of the area lived in huts with lowered floors called umjip ( 움집 ). There

8547-585: The hottest month, has average high and low temperatures of 30.0 and 22.9 °C (86 and 73 °F) with higher temperatures possible. Heat index values can surpass 40 °C (104.0 °F) at the height of summer. Winters are usually cold to freezing with average January high and low temperatures of 2.1 and −5.5 °C (35.8 and 22.1 °F), and are generally much drier than summers, with an average of 24.9 days of snow annually. Sometimes, temperatures drop dramatically to below −10 °C (14 °F), and on some occasions as low as −15 °C (5 °F) in

8658-617: The late 19th century, after hundreds of years of isolation, Seoul opened its gates to foreigners and began modernization. Seoul became the first city in East Asia to introduce electricity in the royal palace, which was established by the Edison Illuminating Company . A decade later the city also implemented electrical street lights. After Gojong 's proclamation of Korea as the Korean Empire in 1897, Seoul

8769-411: The list of the dead and the injured. The 11 police and auxiliary officers in the police van that fell with the bridge became the first to respond to the disaster. The officers undressed and used their clothes to tie a rope, saving a total of 10 drowning people. First responders arrived more than 20 minutes after the collapse, and rescue operations began at 8:10 a.m.  KST . The late response of

8880-420: The mid winter period of January and February. Temperatures below −20 °C (−4 °F) have been recorded. The Seoul Metropolitan Government is the local government for Seoul, and is responsible for the administration and provision of various services to the city, including correctional institutions, education, libraries, public safety, recreational facilities, sanitation, water supply, and welfare services. It

8991-550: The network. The target was to cut pollution to over 30% below the legal limit of 50 μg/m3. It was 32 μg/m3 by 2026. The outset actuality was 38.8 μg/m3 average concentration of pollution.  Starting in 2024, ₩100 billion annually for three years was earmarked for air pollution reduction measures. These included installation of air conditioning, better ventilation systems and filters, replacement of dust-inducing gravel rail tunnel beds with concrete ones, dust-capture matting at turnstiles, and constant public readings for pollution within

9102-631: The northeastern borders of Seoul. In September, Seoul again annexed present-day Gangnam . The two consecutive expansions more than doubled the size of Seoul from approximately 268 km (103 sq mi) to 613 km (237 sq mi). After annexation, Gangnam 's development was spurred by key infrastructure projects: the construction of the Hannam Bridge (1966–1969) and Gyeongbu Expressway (1968–1970). As Seoul's population kept growing, Park 's regime focused its development plans on Gangnam. The main hurdle for Gangnam's development

9213-462: The northern border. The city lost its provincial capital position and was put under Bukhansan Province once again. This further proves that Bukhansan was located in the North of modern-day Pyongyang as changing the provincial name and objective would not be required if Bukhansan was located within Seoul. In the 11th century Goryeo , which succeeded Unified Silla , built a summer palace in Seoul, which

9324-551: The original price. The new bridge was opened to the public on July 3, 1997, by Mayor Cho Soon , and a memorial was held on the bridge. The Memorial Stone for the Victims of the Seongsu Bridge Disaster ( Korean :  성수대교 사고 희생자 위령비 ) was erected on October 21, 1997, by the families of the Seongsu Bridge disaster victims. The memorial commemorates the victims of the disaster and aims to raise awareness on

9435-710: The public on November 22, 1999. On January 5, 1995, in response to the disaster, the Special Act on the Safety Management of Structures was passed, which expanded the frequency and scope of inspections. In July of that year, the Disaster Control Act would be passed, a response to the deadly collapses of the Seongsu Bridge and the Sampoong Department Store. Although the city government initially planned to repair and reopen

9546-623: The rear of the bus to tilt over backwards and plummet onto its roof, crumpling to half its size. Thirty-two people were killed in the disaster including 29 victims on the Number 16 bus, which held 31 people when it fell. Among the dead were the bus driver and nine students from the Muhak Girls' High School  [ ko ] and the Muhak Girls' Middle School  [ ko ] in the Haengdang neighborhood of Seongdong District. Two of

9657-428: The safe management of public infrastructure. The memorial is located in the middle of Gangbyeon Expressway on the north side of the bridge, and has been criticized for its inaccessibility by foot. In August 1999, a father of a Muhak Girls' High School student who died in the Seongsu Bridge disaster died by suicide in front of the memorial. Memorials are held at the stone every year, and a 20th anniversary memorial service

9768-446: The same period fell by 19% across the country and more in Seoul and Gyeonggi. Asian dust , emissions from Seoul and in general from the rest of South Korea, as well as emissions from China, all contribute to Seoul's air quality. Besides air quality, greenhouse gas emissions represent hot issues in South Korea since the country is among top-10 strongest emitters in the world. Seoul is the strongest hotspot of greenhouse gas emissions in

9879-414: The sound of the collapse to thunder. Traffic was flowing at a speed of 40 km/h (25 mph), and a total of six vehicles were involved in the incident, including a police van and a commuter bus carrying 31 occupants. The police van carried 11 police and auxiliary police officers who were selected as model officers for Police Day  [ ko ] celebrations that day. Heavy rain the night before

9990-673: The stone wall of "Pyongyang Fortress", which was presumably built in the mid to late 6th century AD over period of 42 years, located in Pyongyang, while there is no evidence that Seoul had name Hanseong dating the three kingdoms and earlier period. In 568, Jinheung Taewang made another royal visit to the northern border, visited Hanseong, and stayed in Namcheon on his way back to the capital. During his stay, he set Jinheung Taewang Stele, abolished Bukhansan Province, and established Namcheon Province (남천주; 南川州; South River Province), appointing

10101-436: The suspension trusses to the anchor trusses. It notes that had the vertical members been welded correctly, increases in load would not have caused the fatigue stress to exceed reasonable limits and that fatigue failure would not have occurred. Radiographic testing carried out following the collapse found that 110 out of the 111 connections in the bridge were filled with defects and that welds often only penetrated 2 to 8mm when

10212-529: The system. Seoul has a humid continental ( Köppen : Dwa ) or humid subtropical climate ( Cwa , by −3 °C or 26.6 °F isotherm), influenced by the monsoons ; there is great variation in temperature and precipitation throughout the year. The suburbs of Seoul are generally cooler than the center of Seoul because of the urban heat island effect. Summers are hot and humid, with the East Asian monsoon taking place from June until September. August,

10323-636: The victims on the bus survived the fall, but died waiting for first responders. The victims were treated at six hospitals, including the National Police Hospital  [ ko ] , while the 32 dead were enshrined at 15 hospitals throughout Seoul. Among the victims was Adele Aida, a 40-year-old undocumented immigrant from the Philippines who was traveling to a meeting of Filipinos in Korea. Initial reports incorrectly reported over 40 deaths after police reports mistakenly combined

10434-478: The victims, omitting only the personal information of the minors and eleven police officers. In addition, the exact compensation received by each of the deceased victims' families was released in the original white paper. Seoul Central District Court Sentenced 1997.6.11., 95 Criminal Appeal Trial No. 2918 Original Judgement Seoul Central District Court Sentenced 1997.6.11. 1995 Criminal Prosecution Case Number 3004 Original judgement Immediately following

10545-690: The week after the bridge collapse were postponed. On November 30 of that year, newspaper clippings documenting the disaster were included in the Seoul Millennium Time Capsule  [ ko ] which marked the 600th anniversary of the capital city of Seoul. On November 10, 2000, the Dong Ah Group  [ ko ] , the parent company of Dong Ah Construction, filed for bankruptcy and dissolved six months later, on May 11, 2001. The Cabinet paid 4 million won (equivalent to ₩8 million in 2017) in compensation to each of

10656-596: Was 24 micrograms per cubic meter (1.0 × 10  gr/cu ft), which is 2.4 times higher than that recommended by the WHO Air Quality Guidelines for the annual mean PM2.5. The Seoul Metropolitan Government monitors and publicly shares real-time air quality data. Since the early 1960s, the Ministry of Environment has implemented a range of policies and air pollutant standards to improve and manage air quality for its people. The "Special Act on

10767-636: Was also known by other various historical names, such as Bukhansan-gun (북한산군; 北漢山郡, during the Goguryeo era), Namcheon ( 남천 ; 南川 , during the Silla era), Hanyang ( 한양 ; 漢陽 , during the Northern and Southern States period ), Namgyeong (남경; 南京, during the Goryeo era), and Hanseong ( 한성 ; 漢城 , during the Joseon era). The word seoul was used colloquially to refer to the capital as early as

10878-497: Was estimated at 51.71 million, and according to the 2018 Population and Housing Census, 49.8% of the population resided in the Seoul metropolitan area. This was up by 0.7% from 49.1% in 2010, showing a distinct trend toward the concentration of the population in the capital. Seoul has become the economic, political and cultural hub of the country, with several Fortune Global 500 companies, including Samsung , SK Holdings , Hyundai , POSCO and LG Group headquartered there. Seoul

10989-423: Was ever informed of the imminent collapse. The 17 defendants were tried collectively at the 7th Seoul Criminal District Court under Judge Kim Dong-hwan ( 김동환 ), and proceedings began on December 15, 1994. Defendants from Dong Ah Construction were charged with criminal negligence resulting in death, injury, the obstruction of traffic, and an automobile accident. Defendants from the Seoul Metropolitan Government and

11100-408: Was floods because the area is low-lying and prone to flooding. Then Seoul mayor Kim Hyun-ok ordered construction of an expressway that doubled as embankment , which became the present-day Gangbyeon Expressway . The construction started in March 1967 and completed in September of the same year. Similar projects transformed previously flood-prone areas into usable land for development. Such areas include

11211-470: Was half the price of its expected cost at the time. The rushed construction of the bridge was attributed as a negative consequence of South Korea's ppalli ppalli ( 빨리빨리 ; lit.  quickly, quickly) culture. The Seongsu Bridge linked the Seongdong District north of the river to the southern Gangnam District and was one of the busiest bridges in Seoul. Following the development of

11322-597: Was held at the stone in 2014. Seoul Seoul , officially Seoul Special Metropolitan City , is the capital and largest city of South Korea . The broader Seoul Capital Area , encompassing Gyeonggi Province and Incheon , emerged as the world's sixth largest metropolitan economy in 2022, trailing behind Paris , San Francisco , Los Angeles , Tokyo , and New York , and hosts more than half of South Korea's population. Although Seoul's population peaked at over 10 million, it has gradually decreased since 2014, standing at about 9.6 million residents as of 2024. Seoul

11433-510: Was not Pyongyang, Taedong River was likely Han River, and Bukhansan was not Bukhansan during the three kingdoms period. Moreover, Pyongyang was a common noun meaning capital used by Goguryeo and Goryeo dynasties, similar to Seoul. In 603, Goguryeo attacked Bukhansanseong (북한산성; 北漢山城; Bukhan Mountain Fortress), which Silla ended up winning. In 604, Silla abolished Namcheon Province, and reestablished Bukhansan Province in order to strengthen

11544-483: Was partially finished around 1396. The city of Hanyang was governed by the Hanseongbu  [ ko ] ( 한성부 ), an agency of the national government dedicated to affairs on the administration of the capital city. The Hanseongbu divided Hanyang into two major categories: areas inside the Fortress Wall, which were typically named Seong-jung ( 성중 ; 城中 ) or Doseong-an ( 도성 안 ; lit.  Inside

11655-408: Was referred to as the "Southern Capital". It was only from this period that Seoul became a larger settlement. Seoul became the planned capital of Korea by Yi Seong-gye , the founding father of the Joseon dynasty. After enthroning himself as King at the capital of old Goryeo in 1392, Yi Seong-gye changed the name of his Kingdom from Goryeo to Joseon in 1393 and began his search for a place for

11766-466: Was revealed that Woo had been Deputy Mayor  [ ko ] when internal reports had questioned the safety of the bridge. Kim held a meeting with his cabinet on October 23 calling for the elimination of deficient companies from the construction industry and the revision of laws to increase the depth and breadth of inspections. The next day, Kim appeared on national television in his second official apology of his term. In his address, he stated that

11877-470: Was sentenced to three years imprisonment and five years' probation. The defendants appealed the ruling, and the case was taken to the Korean Supreme Court . In South Korea, the Supreme Court can only consider appeals with regards to the law and cannot alter sentencing. Defendants argued that they were not individually responsible for the bridge collapse because no individual action had caused

11988-524: Was temporarily called Hwangseong ( 황성 ; 皇城 ; lit.  the imperial city). Much of modern development around this era was propelled by trade with foreign countries like France and the United States. For example, the Seoul Electric Company , Seoul Electric Trolley Company, and Seoul Fresh Spring Water Company were all joint Korean–U.S. owned enterprises. After the annexation treaty in 1910, Japan annexed Korea and renamed

12099-486: Was temporarily relocated to Busan . One estimate of the extensive damage states that after the war, at least 191,000 buildings, 55,000 houses, and 1,000 factories lay in ruins. In addition, a flood of refugees had entered Seoul during the war, swelling the population of the city and its metropolitan area to an estimated 1.5 million by 1955. Following the war, Seoul began to focus on reconstruction and modernization. As South Korea's economy started to grow rapidly from

12210-480: Was the 11th bridge constructed over the Han River , connecting the northern Seongdong District to the southern Gangnam District . The bridge became one of the busiest bridges in Seoul and was built as part of military dictator Park Chung Hee 's plan to develop the region south of the Han River (known as Gangnam ). Seventeen Seoul Metropolitan Government , Dongbu Corporation , and Dong Ah Construction  [ ko ] officials were convicted in connection to

12321-485: Was the most densely populated among OECD countries in Asia in 2012, and second worldwide after that of Paris . As of the end of June 2011, 10.29 million Republic of Korea citizens lived in the city. This was a 0.24% decrease from the end of 2010. The population was 10.44 million in 2012, and 9.86 million in 2015. As of 2021, Seoul's population is 9.59 million. The population of Seoul has been dropping since

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