At the Samsung Station construction site for the GTX-A line, it has been confirmed that the oversight team marked inspection results as 'satisfactory' for two consecutive months despite being aware of the missing 178 tons of rebar. Additionally, it has come to light that Seoul City submitted the oversight team's construction management report to the Korea Railroad Corporation without independent verification, raising concerns about the overall construction, oversight, and supervision system.
According to the 'Construction Management Report for the Underground Complex Development Section 3' obtained by Park Yong-gap, a member of the National Assembly's Land, Infrastructure and Transport Committee, the oversight company, Saman, continued to give passing grades on inspection checklists even after acknowledging the missing rebar.
Hyundai Construction, the contractor, first identified the missing 178 tons of rebar in 80 columns on October 23, 2025, through its own quality checks. The company informed the head of the oversight team on October 30 and subsequently emailed the details to Seoul City on November 10.
However, the oversight team, despite knowing about the missing rebar, marked all key items on the inspection checklists dated November 11 and 14 as 'pass,' including questions about the accuracy of rebar spacing and the condition of the rebar's size, shape, and assembly. Inspection requests submitted later, such as on December 23, also recorded the rebar placement as 'satisfactory and passing.'
Seoul City was aware of the structural deficiencies reported in November but accepted the oversight team's report without question. The city then submitted the construction management report to the Korea Railroad Corporation, the project client.
The issue is expected to lead to disputes over liability under the Construction Technology Promotion Act. Seoul City maintains that the matter was addressed through internal checks during construction and does not constitute a 'construction accident' since there were no fatalities or property damage. However, critics argue that immediate site inspections and reports to the Ministry of Land, Infrastructure and Transport should have been conducted as soon as concerns about construction quality arose.
The Ministry has already begun audits of both Seoul City and the Korea Railroad Corporation. A special inspection team has also been formed to review overall construction, safety, and quality management.
Cost burdens due to project delays are another concern. If reinforcement work and external verifications continue, it could disrupt the schedule for non-stop service at Samsung Station and its official opening. This raises the possibility of increased financial liabilities for operational loss compensation to private contractors.
In the political arena, there are calls for financial accountability. During a recent inquiry by the National Assembly's Land, Infrastructure and Transport Committee, Democratic Party lawmaker Han Jun-ho stated, "We cannot pass the costs of construction failures and delayed responses onto taxpayers," suggesting the need for a review of claims against Seoul City, Hyundai Construction, and the oversight company Saman. In response, Minister of Land, Infrastructure and Transport Kim Yoon-deok agreed, stating, "That is only natural."
* This article has been translated by AI.
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