The technical assistance will carry out technical, social, environmental, financial, and economic assessments for two major routes: (i) from Hairatan at the border with Uzbekistan to Herat in the west via Mazar-e-Sharif, and (ii) from Shirkhan Bendar at the border with Tajikistan via Kunduz to Naibabad joining Mazar-e-Sharif to Herat.