{"id":"f-80ae245e0c-3cf80aa6-0249-5540-9ca0-868f2e5e41ef","title":"Borivali-Thane In 15 Minutes Sans Ghodbunder, WEH Traffic: Why SGNP Twin Tunnel Is BMC Poll Promise","description":"Thane-Borivali in 15 Minutes without Ghodbunder, WEH traffic: Implemented by MMRDA, the project consists of two road tunnels running under the Sanjay Gandhi National Park (SGNP)","timestamp":1768225847,"category":"national_v_two","headline":"Borivali-Thane In 15 Minutes Sans Ghodbunder, WEH Traffic: Why SGNP Twin Tunnel Is BMC Poll Promise","modifiedHeadline":"SGNP Tunnel: Borivali To Thane In 15 Minutes?","subCategories":["scid_32ea1c2f"],"region":"IN","bundleMetaData":{"bundleId":"7b48871c-c993-4956-b43d-6f46f8e1b036","bundleTitle":"Today In India","cardData":null},"iabCategoryId":"8YPBBL","fcSummary":"The Thane-Borivali twin tunnel project, a key promise for Mumbai's BMC polls, aims to drastically cut travel time between Thane and Borivali to 15-20 minutes. With a ₹18,838 crore investment, the 11.8 km twin-tube tunnel running under Sanjay Gandhi National Park is expected to be completed by 2028.","summary":"SGNP twin tunnel project by MMRDA promises 15-min Borivali-Thane commute, bypassing Ghodbunder & WEH traffic. A poll winning dream!","ctaUrl":"https://trends.glance.com/newz/news/IN/en/news18/f-80ae245e0c-3cf80aa6-0249-5540-9ca0-868f2e5e41ef","sourceUrl":"https://www.news18.com/cities/mumbai-news/thane-borivali-in-15-minutes-sans-ghodbunder-weh-traffic-why-sgnp-twin-tunnel-is-bmc-poll-promise-ws-l-9825730.html","bannerImage":"https://g-mob.glance-cdn.com/public/fc/image/Tfd6h-Svbn60.webp","content":"

Among the key infrastructure projects promised in the Bharatiya Janata Party-led Mahayuti’s manifesto for Mumbai’s Brihanmumbai Municipal Corporation (BMC) polls is the speeding up of the Thane to Borivali

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twin tunnel project. It is being built in the Mumbai Metropolitan Region to improve connectivity between Thane (on the eastern side of the region) and Borivali (on the western side). Once completed, it will bring down the travel time to 15 minutes.

“With an investment of ₹12,057 crore, split between ₹6,178 crore for the 5.75 km Borivali stretch and ₹5,879 crore for the 6.09 km Thane side, this tunnel will transform urban commute while ensuring environmental responsibility,” CM Devendra Fadnavis had earlier said in a post on X.

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Thane to Borivali twin tunnel project

Implemented by the Mumbai Metropolitan Region Development Authority (MMRDA), the project consists of two parallel road tunnels (a twin-tube tunnel) running under the Sanjay Gandhi National Park (SGNP).

Total length: 11.8 km
Tunnel length: 10.25 km
Connecting roads: 1.59 km
Length division: Along Borivali — 5.75 km; Thane side — 6.09 km
Each tunnel will carry three lanes of traffic (two traffic lanes and an emergency lane).
\n It is expected to be the longest urban road tunnel in the state of Maharashtra.

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Connecting Cities, Cutting Emissions, and Creating Impact — The Twin Tunnel Vision!
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Chaired a review meeting regarding the ‘Thane–Borivali Twin Tunnel Project’ — a transformative step towards seamless travel, faster commutes, and sustainable urban progress. Directed officials to… https://t.co/PlwZykTpS7
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— Devendra Fadnavis (@Dev_Fadnavis) June 26, 2025
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Why is it a BMC election promise?

Currently, the road distance between Thane and Borivali via Ghodbunder Road/Western Express Highway can take 60-90 minutes or more in heavy traffic.
The tunnel will create a direct underground link, cutting the travel time to around 15–20 minutes.
\n It’s intended to decongest traffic, reduce pollution, and support smoother mobility for daily commuters.

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Thane-Borivali twin tunnel project’s first TBM, S-1400A by Herrenknecht, has passed factory tests!
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The 3 lane tunnels will have a maximum depth of 23 m… pic.twitter.com/xX0PWuNght
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— Infra News India (INI) (@TheINIofficial) February 28, 2025
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What is the plan?

Each tunnel will have two traffic lanes and one emergency lane. There will be cross-passages at every 300 meters.

From a safety point of view, the following facilities will be provided:

Ventilation system
Firefighting equipment
Smoke detector devices
Retro-reflective / LED information board

Use of Tunnel Boring Machines (TBMs) to minimise surface disruption, especially important because the alignment goes underneath the eco-sensitive Sanjay Gandhi National Park. The diameter of the cutter head will be 13.34 m, with length at 86 meters and weight at around 2,500 tonnes.
\n It will link the Ghodbunder Road (Thane side) with the Western Express Highway (Borivali), providing a faster route for commuters and reducing the load on existing road corridors.

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A huge mobility leap for the Mumbai Metropolitan Region.
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India’s largest and longest urban road tunnel, the Thane–Borivali Twin Tunnel Project, has just crossed a historic milestone.
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MMRDA has successfully completed the Thane-side portal excavation and lowered the 13.34-metre… pic.twitter.com/TLQb6W08Y2
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— MMRDA (@MMRDAOfficial) December 2, 2025
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The deadline

Administrative approval was given in March 2023 and the construction began in May 2023. The project is expected to be completed by 2028.
\n There have been updates to the alignment and extension of access points to reduce congestion at local junctions.

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Happy to inform that the National Board of Wildlife has granted approval to the #Thane #Borivalli Twin #Tunnel. This marks an important milestone in starting work of this watershed #project #RebootingMumbai #ReshapingMMR #MumbaiIsUpgrading #MMRDA #UrbanTransformation pic.twitter.com/E3ZqOAriWR
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— Dr. Sanjay Mukherjee (@DrSanMukherjee) February 3, 2024
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The cost

The total project cost is expected to be Rs 18,838 crore.

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Borivali-Thane In 15 Minutes Sans Ghodbunder, WEH Traffic: Why SGNP Twin Tunnel Is BMC Poll Promise

SUMMARY