Purvanchal Expressway

Purvanchal Expressway is a 340.8 km long, 6-lane wide (expandable to 8) access-controlled expressway in the state of Uttar Pradesh, India. The expressway connects Chand Saray village near Gosainganj in Lucknow district with Haydaria village on NH-31 in Ghazipur district. It is developed by the Uttar Pradesh Expressways Industrial Development Authority (UPEIDA). The Purvanchal Expressway has a 3.2 km long airstrip at Akhalkiri Karwat village near Kurebhar in Sultanpur district for emergency landing of aircraft. The construction work was started by the UPEIDA on 10 October 2018 and was inaugurated and opened to the public on 16 November 2021.

The project was announced and laid down by the then Chief Minister of Uttar Pradesh Akhilesh Yadav as Lucknow-Azamgarh-Ballia Samajwadi Purvanchal Expressway in May 2015. Later, route was changed to Lucknow-Azamgarh-Ghazipur by the Yogi Adityanath government, and upon acquisition of around 95% of required land, foundation stone of Purvanchal Expressway was laid on 14 July 2018 by Prime Minister Narendra Modi. With a total project value of ₹22,494 crore, including the land acquisition cost, the Expressway was India's longest expressway at the time of completion.

The expressway is to be linked with Varanasi–Azamgarh highway through a separate link road. UPEIDA is also constructing the Gorakhpur Link Expressway, which will connect Jaitpur village in Gorakhpur district with Purvanchal Expressway at Salarpur village in Azamgarh district. Upon the completion of 17 km long, 4-lane wide Buxar–Ghazipur Elevated Road (Bharauli near Buxar to Haydaria in Ghazipur), Lucknow in Uttar Pradesh will be directly connected to Buxar, Arrah and Patna in Bihar by Purvanchal Expressway and NH-922.

5 industrial corridors will be set up alongside Purvanchal Expressway. As on Nov., 2023, the land has been identified and process for bainama is underway.