The Bangladesh Bridge Authority has sought Spain's cooperation in feasibility studies, engineering designs, and consultancy services for three transport projects including a subway under a public-private partnership (PPP). The projects are as follows:

• 29.26km Dhaka Subway Route 0 (Tongi-Jhilmil)

Subway Route 0 will feature 27 stations – Tongi Junction, Ahsanullah Master, Uttara Sector-10, Uttara Sector-13, Uttara Sector-14, North Bawnia, Uttara Sector-17, Shagufta New Road, Kalshi Mor, Palash Nagar, Vashantek Govt High School, Kochukhet, Rajanigandha Market, RAOWA, Mohakhali, BG Press, Hatirjeel, Moghbazar, Kakrail, Press Club, Gulistan, Naya Bazar, Sadarghat, Khejur Bagh, Muslim Nagar, Teghoria Bazar, and Jhilmil.

• 39.23 km Dhaka East-West Elevated Expressway

The expressway will link Hemayetpur on the Dhaka-Aricha Highway (N5), Dhaka-Mawa Highway (N8), and Langalbandh intersection on the Dhaka-Chittagong Highway (N1). A crucial aspect of the project is connecting highways N5 and N1 to the Padma Bridge via the Dhaka-Mawa Expressway. The expressway will enable vehicles from the eastern, southwestern, and northwestern districts to travel directly between these areas without entering Dhaka city. 

The Bridge Authority collaborated with the Spanish company Technica Y Proyectos SA to develop the project plan. The work scope includes financing preparatory studies, technical assistance, and detailed engineering designs for projects in Bangladesh, aimed at promoting Spanish exports and fostering bilateral collaboration between Madrid and Dhaka. The government is also seeking a survey to construct the Danga Bazar Bridge over the River.