Thailand’s first expressway tunnel proposed by way of 36 billion baht investment

The Expressway Authority of Thailand (EXAT) has put forth a proposal for an underground expressway, aiming to switch a contentious section of the N1 Expressway improvement. The proposal got here after an extensive 17-month preliminary feasibility research.
EXAT Governor Surachet Laophulsuk revealed this plan through the project’s second hearing, stating that a number of factors such as engineering, investment prices, and environmental influence, were totally evaluated. The end result revealed that an underpass was probably the most viable choice.
Light proposed 6.7 kilometre underpass would be Thailand’s maiden expressway tunnel. It would stretch along Ngarmwongwan Road by way of Phongphet Intersection, Bang Khen Intersection, and Kaset Intersection to Prasertmanukit Road, before connecting with the N2 Expressway.
Surachet defined that among the three options studied, the tunnel scored the highest, with a complete rating of eighty two.5. The estimated investment value for this challenge is 36 billion baht, and it’s anticipated to generate an financial inner return price of 17%.
He additional assured that EXAT is financially sound and contemplating investing in the project itself. If essential, the company may ponder issuing bonds to procure funds for the construction.
The environmental impression evaluation, according to Surachet, is due for completion in May subsequent year and will be submitted to the cabinet for approval. The bidding process is tentatively set for 2026, and building is anticipated to start the following 12 months.
With development estimated to take about five years, the anticipated site visitors quantity upon the first year of opening is 70,000 automobiles per day. This volume is half of the route’s whole capacity.
Surachet expressed confidence that the proposed underpass can be accepted by those who had previously raised environmental concerns about the design.
Surachet additionally make clear the three-phase expressway development’s northern part, which is divided into two stages. The initial stage, N2, extends from Prasertmanukit Road to the japanese Outer Ring Road, covering a distance of 11.3 km and requiring an investment of sixteen.9 billion baht. This challenge is now prepared and shall be submitted to the model new government for approval shortly.
For the second stage, N1, EXAT has conducted a feasibility research to identify different routes that would replace the controversial part. Following discussions with Kasetsart University and communities along the deliberate route, the underpass was conceived as the most suitable different, reported Bangkok Post.
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