Location: I-55 and Sangamon Ave, Sangamon Cty After the business loop splits we’re two miles from Illinois 54. Location: I-55 and Sangamon Ave, Sangamon Cty One mile to Illinois 54, which heads east to Clinton. Location: I-55 and Sangamon Ave, Springfield Exit for Sangamon Avenue as we enter Springfield. Illinois 54 is coming up with … Continue reading Interstate 55, I-55 Bus to IL-54