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State Highways in Bihar: Routes and Their Importance

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Date: Jul 28, 2026 - Last Modified Jul 28, 2026
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State highways in Bihar are crucial road corridors. They connect district headquarters, commercial centres, tourist attractions, and rural regions throughout the state. These roads are constructed and managed by the state’s Public Works Department (PWD). Bihar has an extensive network of state highways that links key districts and supports economic activities throughout the state. This article gives an overview of the major state highways in Bihar, including their routes, lengths, and significance in strengthening the state's transport system.

Significance of State Highways in Bihar

The extensive network of state highways in Bihar helps connect urban and rural regions, improving accessibility and enhancing trade, tourism, and mobility. It forms the backbone of the state's local economy. These routes work alongside the NH in Bihar and other road networks to improve connectivity and support social development. 

Here’s how the state highways in Bihar help:

  • Enhancing Connectivity Between Districts 

Many Bihar state highways connect district headquarters and important towns, ensuring smoother transportation of people and goods. These routes reduce travel time and improve regional accessibility throughout the state. Moreover, ‘The Enhancing Connectivity and Sustainability in Bihar Road Project’ plans to upgrade about 265 kilometres (km) of eight state road sections in the state. This will improve road transport connectivity and distributed traffic in accordance with the widened lanes, in line with the Road Master Plan for Bihar’s State Highway Department (2015–2035).

  • Promoting Tourism and Regional Development 

Several highways in Bihar provide access to historical, religious, and cultural destinations. These may also include famous temples, waterfalls, and wildlife sanctuaries. In addition, there is access to small- and medium-scale industries such as sugar factories and tea gardens. Better connectivity encourages tourism, supports local businesses, and contributes to the state’s economic development.

  • Improving Access to Essential Services 

A well-developed Bihar road network helps residents access healthcare facilities, educational institutions, government services, and markets more efficiently, especially in remote and rural regions. Moreover, it may help to strengthen public transport services, facilitating passenger movements by encouraging inhabitants to travel for attractive jobs in urban areas. 

The Asian Development Bank has approved a $295 million loan to expand and upgrade around 265 kilometres of state highways, enhancing transport connectivity and safety in the state of Bihar in India. This may help the state with economic development and other key areas.

 

Major State Highways in Bihar

The highways connect major cities and districts with far-off places in the state and are also linked to other state highways. The following are some of the major state highways in Bihar that contribute significantly to transportation and connectivity: 

Bihar State Highway 5 (SH 5)

  • Starting Point: Hajipur
  • Ending Point: Sitamarhi
  • Length: 89.77 km
  • Route & Major Places Covered: Biharsharif –Parwalpur – Ekangarsarai – Telhara – Jehanabad – Arwal Road.
  • Key Highlights: An important route connecting North Bihar with major commercial and agricultural regions.

Bihar State Highway 6 (SH 6)

  • Starting Point: Biharsharif
  • Ending Point: Kharagpur Road
  • Length: 95 km
  • Route & Major Places Covered: Biharsharif – Barbigha – Shekhpura – Sikandara – Jamui – Kharagpur Road.
  • Key Highlights: One of the key state highways in Bihar serving central districts.

Bihar State Highway 15 (SH 15)

  • Starting Point: Nasriganj
  • Ending Point: Dehri-on-Sone
  • Length: 45 km
  • Route & Major Places Covered: Dehri – Nasriganj – Vikramganj – Dinara.
  • Key Highlights: Supports inter-district movement within Rohtas district.

Bihar State Highway 16 (SH 16)

  • Starting Point: Akbarpur
  • Ending Point: Jardeg Road
  • Length: 66 km
  • Route & Major Places Covered: Akbarpur – Pipradih – Yadunathpur – Jardeg Road
  • Key Highlights: Connects important districts in southern Bihar

Bihar State Highway 18 (SH 18)

  • Starting Point: Jamui
  • Ending Point: Chakai Road
  • Length: 63 km
  • Route & Major Places Covered: Jamui – Jhajha – Chakai Road
  • Key Highlights: Serves several important agricultural regions in western Bihar.

Bihar State Highway 68 (SH 68)

  • Starting Point: Sheoganj
  • Ending Point: Baidarabad
  • Length: 78 km
  • Route & Major Places Covered: Sheoganj – Rafiganj – Goh – Upahara – Deokund - Baidarabad

Bihar State Highway 69 (SH 69)

  • Starting Point: Dumaria
  • Ending Point: Rani Talab
  • Length: 153 km
  • Route & Major Places Covered: Dumaria –Imamganj – Sherghati – Karmain – Mathurapur – Guraru – Ahiapur – Tekari – Mau – Kurtha – Kinjar – Paliganj – Rani Talab
  • Key Highlights: One of the longer routes in the Bihar highway list.

Bihar State Highway 74 (SH 74)

  • Starting Point: Hajipur
  • Ending Point: Areraj
  • Length: 85 km
  • Route & Major Places Covered: Hajipur – Vaishali – Deoria – Sahebganj – Kesaria – Areraj.

Bihar State Highway 77 (SH 77)

  • Starting Point: Kursela
  • Ending Point: Forbesganj
  • Length: 105 km
  • Route & Major Places Covered: Kursela – Pothia – Sarsi – Raniganj – Forbesganj. 
  • Key Highlights: Important corridor linking eastern districts.

     

Things to Check Before Driving on State Highways in Bihar

Driving through the straight, long lanes of the state highways in Bihar can be exciting. However, it also comes with a set of responsibilities. Driving on these highways requires discipline and staying alert. 

  • Ensure Your Car Insurance Policy Is Active

Before travelling on the state highways in Bihar, verify that the mandatory third-party insurance policy coverage is valid and active. Comprehensive car insurance coverage options from SBI General Insurance can help provide broader financial protection during unforeseen situations.

  • Carry Essential Vehicle Documents

Always carry the driving licence, Registration Certificate (RC), Pollution Under Control (PUC) certificate, insurance documents, and any other legally required papers while travelling on the state highways in Bihar.

  • Plan Your Route in Advance

Review the nearest highway, road conditions, and alternate routes before beginning the journey. A current Bihar highway map can help ensure smoother travel.

 

Conclusion

The network of state highways in Bihar plays an important role in connecting districts, supporting trade, and improving access to essential services. Along with the NH in Bihar network, these roads contribute significantly to the state's economic and social development. Understanding the Bihar state highway list can help travellers and businesses plan more efficient journeys throughout the state.

When travelling across Bihar’s state and national highways, having suitable motor insurance can help you stay financially protected against unexpected events on the road. SBI General Insurance offers access to 8700+ network garages, a presence across 140+ locations, along with quick claim approvals and a hassle-free claims process. Whether you drive regularly for work or travel between cities, the right insurance coverage can help you enjoy a more secure journey.

 

FAQs

1. Which is the busiest state highway in Bihar?

Traffic volumes vary depending on location and season. Highways connecting Patna, Gaya, Muzaffarpur, and other major cities generally experience heavier traffic.

2. Can state highways in Bihar have toll plazas?

Yes. Certain stretches of state and district highways in Bihar may have toll collection points depending on the road authority and infrastructure development.

3. How can I check the latest condition of a state highway before travelling?

You can use official traffic updates, transport department advisories, or navigation updates to check current road conditions before starting your trip.

4. Are state highways in Bihar suitable for long-distance travel?

Yes, many state highways in Bihar are widely used for inter-district and long-distance travel.

5. Do state highways in Bihar connect with neighbouring states?

Several highways in Bihar connect with National Highways and roads leading to neighbouring states such as Uttar Pradesh, Jharkhand, and West Bengal.

6. What should drivers carry while travelling on state highways in Bihar?

Drivers should carry a valid driving licence, Registration Certificate (RC), Pollution Under Control certificate (PUCC), motor insurance documents, and any other legally required paperwork.

7. What should I do if my vehicle breaks down on a state highway in Bihar?

Move your vehicle to a safe location, if possible, switch on hazard lights, and seek roadside assistance or emergency services for help.

Note: The given information has been compiled from digitally available resources and is indicative in nature. It is subject to change due to several factors. Individuals are advised to verify information with an official authority before proceeding. 

 

This blog is intended solely for educational and informational purposes. Content reflects data at time of publication and may not accurately reflect current premiums, terms, or regulations. Readers are encouraged to confirm the accuracy and relevance of the data before making any significant decisions. SBI General Insurance disclaims responsibility for any errors or consequences arising from the use of outdated information provided herein. For more details, please refer to the policy wordings and prospectus before concluding the sales. *Add-ons are subject to payment of additional premium.