Problem With Memorial Day weekend fast approaching, the Illinois State Toll Highway Authority (ISTHA) discovered a severely settled section of I-294. They hired URETEK to stabilize and lift 35 precast panels as an emergency project to be completed before the heavy-traffic holiday. Analysis The General Contractor contacted URETEK on the Tuesday before Memorial Day and requested that crews be onsite by that Friday night to repair the fallen panels. On an initial site visit, a URETEK representative documented two panels that had settled against each other and dropped 3.5 inches at the transverse joint. Visible deflection of other panels adjacent to these two severely settled panels was also observed. Dynamic Cone Penetrometer (DCP) testing revealed that the panels were settling due

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