Mapo District Approves Road Management Review for Sangam and Seongsan Stations to Expedite Daejang-Hongdae Line

Agenda for Relocating Hongdae Entrance Station and Adding DMC Station Postponed

Mapo District in Seoul (Mayor Yoo Dong-gyun) has approved the road management agenda for the construction of Sangam Station and Seongsan Station on the Daejang-Hongdae Metropolitan Railway Line. However, the agenda regarding the relocation of Hongdae Entrance Station and the establishment of a new DMC Station has been postponed due to ongoing legal proceedings.

At the public hearing on the Daechang Hong Dae Line held at Seoul City Hall last month, Yudong Gyun, Mayor of Mapo District, is speaking. Courtesy of Mapo District Office.

On the 13th, Mapo District announced that at the "2026 Second Half Road Management Committee Meeting," it approved the road management agenda for Station 109 (Sangam Station) and Station 110 (Seongsan Station) on the Daejang-Hongdae Line. This approval now enables simultaneous construction work at both stations, which involves excavation, and is expected to accelerate the overall project.

During the first half of the year, the district had also postponed the agendas for Sangam Station and Seongsan Station, taking into account the ongoing lawsuit involving demands for the relocation of Station 111 (Hongdae Entrance Station) and the addition of a DMC Station. This time, however, the district determined that the litigation in question is not directly related to the road management issues for Sangam and Seongsan Stations.

The Daejang-Hongdae Line is a 20.1 km metropolitan railway connecting Bucheon Daejang New Town to DMC and Hongdae Entrance Station via Gangseo District, with a total project cost in the 2 trillion won range funded through private investment. Construction began in December 2025, and the target opening date is 2031. Civil engineering has already commenced in the Bucheon City section, and road management reviews have been completed in Gangseo District and Yangcheon District as well. Mapo District judged that further delaying the review was difficult, considering the overall connectivity and urgency of the entire route.

The agenda related to Hongdae Entrance Station has been postponed again, as it was in the first half of the year. The district explained that it needs to thoroughly examine both the lawsuit against the Ministry of Land, Infrastructure and Transport seeking to cancel the approval of the private investment project's implementation plan, as well as the requests from residents for adjustments to the station's location. Mapo District plans to maintain its stance on relocating Hongdae Entrance Station and adding a DMC Station, while working with the Ministry of Land and other related agencies to develop a solution.

Previously, Mapo District filed separate administrative lawsuits against the Ministry of Land, Infrastructure and Transport—one in December 2025 citing the need to relocate Hongdae Entrance Station, and another in January this year regarding the exclusion of the DMC Station and others. Both lawsuits were filed during the previous administration of former Mayor Park Kang-su.

Mayor Yoo Dong-gyun stated, "We will expedite the sections that deliver tangible benefits to residents and deploy all available administrative resources to swiftly establish the necessary transportation networks. We will do our utmost to gather residents' feedback and ensure that improvements in local transportation translate into real benefits for the community."

This content was produced with the assistance of AI translation services.