Highway Designation File

Transportation Planning and Programming Division
Current Description-Effective Date-Authority


Certified Mileage (Open to Traffic)
1.4 2010

INTERSTATE HIGHWAY  NO. 345

BPH Letter dated 10/15/1964; Minute Order 055225, dated 10/30/1964; Adm. Cir. No. 120-1964, dated 11/01/1964

In Dallas, from the junction of IH 20 and IH 45 northward to a connection with US 75 & Spur 366.



Minute Order 065684, 12/02/1971; Adm Cir 125-1971, 12/15/1971

In Dallas from junction of IH 30 & 45 northward to a connection with US 75 & SS 366. (Dallas County) Redescribed due to portion of IH 20 being redesignated IH 30.