Problem State Highway TX-385, which connects Corpus Christi with North Padre Island, was originally paved with asphalt over a weak base of sand and gravel. Over time, pavement settlement created rough and unsafe driving conditions. The Texas Department of Transportation (TxDOT) knew it had to address TX-385, but it could not afford to completely replace the asphalt with concrete pavement. URETEK was hired to repair an 11-mile section of TX-385 that was severely damaged. Analysis Four overpasses on TX-385 had settled as much as six inches. Additionally, the deteriorated base of the highway created serious cracking in the lanes, on the shoulder, and especially at bridge approach and departure slabs. Solution The URETEK Deep Injection ® (UDI) process offered TxDOT a way to regain c

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