Alright, fine. My list of US routes will be...not short
US 11, AL/GA
US 17, SC/NC
US 23, GA/NC
US 26, ID/WY
US 26, WY/NE
US 27, GA/TN
US 29, AL/GA
US 29, SC/NC
US 29, NC/VA
US 30, OR/ID
US 31, TN/KY (though how much does this exist anyway with the E/W split)
US 34, CO/NE
US 40, CO/KS
US 50, CA/NV
US 50, MO/IL
US 52, NC/SC
US 54, KS/MO
US 56, KS/MO
US 60, NM/TX
US 60, TX/OK
US 60, TX/MO
US 61, AR/MO
US 62, OK/AR
US 64, OK/AR
US 65, AR/MO
US 67, TX/AR
US 69, OK/KS
US 70, TN/NC
US 71, AR/MO
US 72, TN/AL
US 75, TX/OK
US 76, SC/NC
US 77, TX/OK
US 78, AL/GA
US 82, AL/GA
US 85, CO/WY
US 93, NV/ID
US 93, ID/MT
US 160, CO/KS
US 160, KS/MO
US 169, OK/KS
US 231, AL/TN
US 275, IA/NE
US 285, NM/CO
US 287, TX/OK
US 319, FL/GA
US 385, TX/OK
US 411, AL/GA
US 412, OK/AR
US 431, AL/TN
US 441, GA/NC
US 501, SC/NC