List of Longest Bridges in India

Author at PW
January 07, 2026
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The longest bridge in India is really something. It has made a difference in how long it takes to travel. The bridge is helping to connect parts of the country especially where big rivers like the Ganges and Brahmaputra are.

These bridges over the Ganges and Brahmaputra are very important for the country's economy. They help people and goods move around easily to places that are really far away. The longest bridge in India is doing a job of linking these remote areas.

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Longest Bridge in India and State-wise Distribution

India has a lot of types of land with big rivers and long coastlines. This means we need a lot of bridges. When we talk about the bridge in India we have to see where all these bridges are in different states. The longest bridge over water in India is the Dhola-Sadiya Bridge, which is also called the Bhupen Hazarika Setu. The Dhola-Sadiya Bridge goes over the Lohit River. Connects the states of Assam and Arunachal Pradesh. 

The Dibang River Bridge in Arunachal Pradesh and the Mahatma Gandhi Setu in Bihar are big deals when it comes to engineering. If you look for the bridge in India and want to know in which state it is you will find that Bihar and Assam have a lot of these huge bridges. This is because the Ganges and Brahmaputra river systems are always flowing and are found in these states. The Dibang River Bridge and the Mahatma Gandhi Setu are examples of engineering projects. The longest bridge in India is often found in states like Bihar and Assam because of the rivers, like the Ganges and the Brahmaputra. You should know that when people search for the bridge in Indiana it is usually a mistake. They really mean to search for the bridge in India. Indiana is a state in the United States. The records we are talking about are for bridges in India. The longest bridge in Indiana is not what people are looking for, they want to know about the bridge in India.

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List of Longest Bridges in India on River and Sea

The following table provides a comprehensive look at the top bridges that define India's infrastructure landscape. This list is categorized by length, the river or water body they span, and the states they connect, based on the most reliable records.

Name of the Bridge

Water Body/River

State

Length (Approx)

Dhola-Sadiya (Bhupen Hazarika Setu)

Lohit River

Assam & Arunachal Pradesh

9.15 km

Dibang River Bridge

Dibang River

Arunachal Pradesh

6.2 km

Mahatma Gandhi Setu

Ganges River

Bihar

5.75 km

Bandra-Worli Sea Link (BWSL)

Mahim Bay (Sea)

Maharashtra

5.6 km

Bogibeel Bridge

Brahmaputra River

Assam

4.94 km

Vikramshila Setu

Ganges River

Bihar

4.7 km

Vembanad Rail Bridge

Vembanad Lake

Kerala

4.62 km

Digha-Sonpur Bridge

Ganges River

Bihar

4.55 km

Arrah–Chhapra Bridge

Ganges River

Bihar

4.35 km

Godavari Bridge

Godavari River

Andhra Pradesh

4.13 km

Deep Dive into Major Bridges

1. Bhupen Hazarika Setu (Dhola-Sadiya Bridge): This is the longest bridge in India that goes over water. It is 9.15 kilometers long and links Dhola in the south to Sadiya in the north. This bridge is very important since it connects higher Assam and eastern Arunachal Pradesh 24 hours a day, seven days a week. It cuts travel time by over four hours and distance by 165 km.

2. The Dibang River Bridge is the second-longest bridge in India. It is 6.2 km long and situated in Arunachal Pradesh. It connects the residents of the Dibang Valley and is very important for getting supplies to the border areas.

3. Mahatma Gandhi Setu: This was the clear length winner for a long period. It connects Patna with Hajipur in Bihar and is still one of India's busiest and most famous bridges. It is 5.75 km long and crosses the sacred Ganges.

4. Bandra-Worli Sea Link: This is a sea link, which is different from the others on this list. It links Worli in South Mumbai with Bandra in the Western Suburbs of Mumbai. It is a work of art in cable-stayed design, and it has made traffic in India's financial capital much less of a problem.

5. Bogibeel Bridge: This is the longest bridge in India that can be used for both train and vehicle traffic. It lies in Assam and crosses the Brahmaputra River. It was intended to resist a lot of seismic activity. It connects Dibrugarh and Itanagar directly.

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Key Facts About India's Longest Bridges

  •  Many of the longest bridges, notably those in the Northeast like the Dhola-Sadiya and Dibang bridges, are intended to handle the transportation of heavy military equipment, including tanks, because they are close to international borders.

  • India uses a variety of bridge types, such as beam bridges (Mahatma Gandhi Setu), cable-stayed bridges (BWSL), and truss bridges (Bogibeel).

  • Economic Impact: The Vikramshila Setu bridge in Bihar has opened up trade routes for silk and farm goods, which has greatly improved the economy of Bhagalpur and the areas around it.

  • The Vembanad Rail Bridge in Kerala is just for freight and passenger trains, which shows how much India cares about dedicated rail lines.

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List of Longest Bridges in India FAQs

Q1: Which is the longest bridge in India?

Ans. The Dhola-Sadiya Bridge, also known as the Bhupen Hazarika Setu, remains the longest bridge over water in India, spanning 9.15 km across the Lohit River in Assam.

Q2: Which state has the longest bridges in India? 

Ans. Bihar and Assam are the states with the highest number of long-span bridges. This is due to the necessity of crossing the wide floodplains of the Ganges and Brahmaputra rivers.

Q3: Is the Bandra-Worli Sea Link the longest bridge in India? 

Ans. No, while it is one of the longest and the most prominent sea links, the Bhupen Hazarika Setu and the Dibang River Bridge are longer in terms of total distance over water.

Q4: What is a rail-cum-road bridge? 

Ans. A rail-cum-road bridge, like the Bogibeel Bridge in Assam, features two levels: one for vehicular traffic and another for railway tracks. This dual-purpose design is highly efficient for regional connectivity.

Q5: What is the significance of the Mahatma Gandhi Setu? 

Ans. The Mahatma Gandhi Setu is a vital link connecting North Bihar with South Bihar. It serves as a major conduit for commerce and transportation in one of India's most populous states.

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List of Longest Bridges in India