Traffic alert · Chennai Metro · Thiruvanmiyur corridor
Greater Chennai Traffic Police have closed a stretch of LB Road for underground metro work and announced diversions through Sastri Nagar and Indira Nagar until further notice.
If you commute between Thiruvanmiyur, Adyar, Besant Nagar or the northern end of OMR, plan for delays from Saturday, 27 June. Chennai Metro Rail Limited (CMRL) is carrying out underground construction on LB Road (Lattice Bridge Road), and the Greater Chennai City Traffic Police have announced that the stretch between the Indian Oil petrol bunk junction and the LB Road–M.G. Road junction will be completely closed to traffic from 27 June 2026.
Chennai · 27 June 2026 — By MyOMR Editorial Team
What is closed
Closed stretch
Indian Oil petrol bunk junction → LB Road–M.G. Road junction (completely closed)
Reason
CMRL underground metro construction
Effective from
27 June 2026
Duration
Until further notice
Free interactive map via OpenStreetMap. Marker shows the closed LB Road stretch between Indian Oil petrol bunk and M.G. Road junction. Open full map →
Key landmarks on the map
Diversions toward Thiru.Vi.Ka Bridge
Vehicles heading from the Thiruvanmiyur side toward Thiru.Vi.Ka Bridge and Adyar must follow different routes depending on vehicle type.
Buses and heavy vehicles
Diverted at the LB Road–M.G. Road junction:
- M.G. Road
- Left turn onto Sastri Nagar 1st Main Road
- Left turn onto Sastri Nagar 1st Avenue
- Rejoin LB Road beyond the closure
Vehicles from Besant Nagar are diverted via 7th Avenue M.G. Road, then right onto Sastri Nagar 1st Main Road, left onto Sastri Nagar 1st Avenue, and rejoin LB Road toward their destination (The Hindu).
Light motor vehicles and other vehicles
Per the traffic police notice, light motor vehicles and all other non-heavy vehicles from Thiruvanmiyur toward Thiru.Vi.Ka Bridge are diverted at the LB Road–M.G. Road junction via:
- Indira Nagar 2nd Avenue
- Right turn onto 1st Main Road
- Right and left turns onto 1st Avenue
- Right turn to rejoin LB Road near the Indian Oil petrol bunk signal
Important: Heavy vehicles are strictly not permitted on Indira Nagar 2nd Avenue during the diversion period.
Diversions toward Thiruvanmiyur
All vehicles (from Thiru.Vi.Ka Bridge / Adyar side)
From the LB Road–Shastri Nagar junction (The Hindu):
- Sastri Nagar 1st Avenue
- Right turn onto 11th Cross Street (one-way toward Thiruvanmiyur)
- Left turn onto 8th Cross Street
- Right turn onto 10th Cross Street
- Join M.G. Road to continue toward your destination
Temporary road-rule changes
- Sastri Nagar 1st Main Road to LB Road via M.G. Road (Mahatma Gandhi Road)
- Sastri Nagar 1st Avenue to Sastri Nagar 1st Main Road
- Sastri Nagar 1st Main Road — one-way only toward Thiru.Vi.Ka Bridge
- 11th Cross Street — one-way only toward Thiruvanmiyur
Commuter tips
- Allow 10–15 extra minutes if your route crosses LB Road, Adyar or Besant Nagar during peak hours.
- Follow on-ground signage and traffic police directions — temporary two-way rules may feel unfamiliar on narrow residential streets.
- If you use Thiruvanmiyur MRTS, Tidel Park or OMR-bound buses from the Adyar side, check whether your feeder route crosses the closed stretch.
- Heavy vehicle operators: do not attempt Indira Nagar 2nd Avenue; use the Sastri Nagar corridor only.
- We will update this article when police announce reopening or route changes.
Why this matters for OMR residents
Thiruvanmiyur sits at the northern gateway to Old Mahabalipuram Road. Many OMR commuters use LB Road to reach Adyar, Besant Nagar, ECR connectors, Thiruvanmiyur MRTS or Tidel Park. Even if you do not live on LB Road, a closure here can ripple into longer travel times on radial roads feeding OMR.
The work is part of Chennai Metro Phase II underground construction. Similar metro-related lane closures and diversions have affected other parts of the corridor in recent months; this is one of the most significant closures on the Thiruvanmiyur–Adyar link.
MyOMR View
Metro expansion is necessary infrastructure, but residents deserve clear, timely diversion information. Save the official route map, bookmark the Google Maps links above, and share this guide with neighbours who commute through Thiruvanmiyur or Adyar.
If you notice unsafe driving on newly two-way residential stretches or missing signage, report it through the civic issue form or alert local traffic police.
Sources: The Hindu (26 June 2026); Greater Chennai City Traffic Police diversion notice; Times of India; DT Next.
