Temporary closure of Bailey bridge may affect Siliguri–Mirik traffic
Darjeeling district authorities have been informed by Indian Army engineers that the 200-metre Bailey bridge spanning the Balasan river at Dudhia will be closed for maintenance, potentially severing a direct road link between Siliguri and Mirik for a day next week. The work is scheduled for 15 September, with 17 September named as an alternate date if weather or operational constraints intervene.
The temporary shutdown follows a formal communication from Army authorities saying the bridge
"requires maintenance and repair for safety and security reasons"and must be taken out of service while engineers inspect and reinforce the structure. The Bailey bridge was erected as an interim measure after the earlier permanent crossing collapsed, restoring critical connectivity between the plains and the Darjeeling hills.
Officials noted the bridge currently carries pedestrians, cyclists, motorcycles and light four-wheelers. Heavy vehicles have been using a makeshift diversion constructed with large pipes across the Balasan after the original bridge failed. That diversion suffered partial damage when a strong river current washed away a section on Friday, raising the prospect of additional disruption if heavy rain in the upper catchment increases flows.
- Bridge: 200-metre Bailey bridge at Dudhia over the Balasan river
- Planned maintenance: 15 September; backup date 17 September
- Current users: pedestrians, cyclists, motorcyclists and light four-wheelers
- Permanent bridge: under construction with more than ₹50 crore allocated by the previous state government
District administration sources said they will assess the damage to the diversion and take measures to maintain communication between the hills and the plains. With the monsoon still active, officials are monitoring river flows closely: any heavy rainfall upstream could push large volumes of water down the Balasan and complicate repair or diversion work.
| Item | Detail |
|---|---|
| Bridge type | Bailey (temporary) |
| Length | 200 metre |
| Maintenance dates | 15 Sept (primary), 17 Sept (alternate) |
| Permanent bridge funding | More than ₹50 crore (allocated previously) |
Residents and commuters between Siliguri and the hill stations have relied on this artery for daily travel and for the movement of essential goods. The Bailey bridge enabled a rapid restoration of access after the collapse of the original structure and remains critical until the permanent bridge is completed. Transporters and local traders have expressed concern that any interruption — even for a single day — could affect supply chains for perishable goods and other necessities moving to and from the hills.
Administration officials are expected to coordinate with the Army engineering team to keep the maintenance window as short as possible and to plan diversions or temporary measures for vulnerable traffic. They will also evaluate the partially damaged diversion built of large pipes and consider immediate repairs if river conditions permit.
For Siliguri commuters, the announcement is a reminder of the fragile nature of hill–plains connectivity during the late monsoon season. Authorities have urged road users to plan travel in advance, follow official advisories and avoid attempting to use temporary crossings when flows are high. Updates on the progress of the Army work and any traffic advisories will be issued by the district administration ahead of the scheduled maintenance.
Local leaders have previously highlighted the need to accelerate construction of the new permanent bridge, for which the previous state administration had allocated funds exceeding ₹50 crore. Until that work is complete, temporary engineering measures will continue to bear the brunt of ensuring safe passage across the Balasan.
