From the east:

Take I-74, or the I–474 bypass around the south side of Peoria, to the junction of I-74 / I-474 and Route 6 then follow the directions below.

From the west:

Follow I-74 to the junction of I–74, I–474, and IL–6 on the west side of Peoria -- take IL–6 north.

At the Route 6 exit #5, take Allen Road south.
Immediately south of the railroad crossing, turn east on Altorfer.

We are on the corner of Allen and Altorfer.