While the corridor was designated "High Priority Corridor 65" in 2005, work along Interstate 95 in Connecticut has been ongoing for nearly 15 years.
The Missouri portion of this route is designated as part of High Priority Corridor 61.
High Priority Corridors @ AARoads.com: Interstate 73/74 (Corridor 5)
ISTEA defined a number of High Priority Corridors, to be part of the National Highway System.
Corridor V was also designated as High Priority Corridor 11 in the National Highway System Designation Act of 1995.
The United States portion of the highway was established as a High Priority Corridor.
The Shawnee Expressway was identified as a High Priority Corridor in the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA).
High Priority Corridor 5 (I-73/74)
In 2005, Nunes introduced H.R. 99, which designated State Route 99 as a congressional High Priority Corridor.
The Intermodal Surface Transportation Efficiency Act of 1991 included two High Priority Corridors that would later become parts of a proposed cross-country extension of I-69:
