Hanoi Streets Thanh Yen Street Posted on May 8, 2014March 17, 2015 by admin 08 May Thanh Yen street, Phuc Tan ward, Hoan Kiem district, Hanoi, Vietnam. It’s 250m long, from Tran Nhat Duat border gate to the next junction outside Red River’s dike. This new name was given in July, 2000. Thanh Yen Street, Hoan Kiem District, Hanoi admin Thanh Cong Road Thang Long Boulevard