What are/were all the suffixed interstates?
Actually existed I-5W (CA) — I-505, I-80, I-580, I-205, CA-120 (see http://www.cahighways.org/001-008.html#005 for details) I-15E (CA) — I-215 (see http://www.cahighways.org/009-016.html#015 , section 2, for details) I-15W (ID) — western I-86 I-24W (MO/TN) — I-155 and US 412 I-35W/I-35E still exists in TX and MN (see 6.2.1.2) I-35W (KS) — I-135 I-59B (AL) — I-459 (Note: “59B” was chosen through a system of placeholder numbers using “A”, “B”, etc., as opposed to “B” meaning “bypass”) I-70N/I-70S (MD) — I-70/I-270 I-70S (PA) — I-70 between I-79 and I-76 I-75E (FL) — I-75 between I-275 termini I-80N (OR/ID/UT) — western I-84 I-80N (IA) — I-680 east of I-29 I-80N (OH) — I-80/90, I-90, I-490, I-480, and OH 14 between US 250 near Norwalk and I-76 near Ravenna I-80S (CO/NE) — western I-76 I-80S (OH/PA/NJ) at first used today’s I-76 in OH and PA and I-276 in PA; later it was rerouted on today’s I-76 and I-676 through Philadelphia and Camden rather than around; and later it was tru
