Court directs HDR to study alternative Outer Loop Segment 5 alignments to avoid mitigation-bank permitting risks
County engineering recommended and the court approved a contract amendment for HDR to further evaluate alternative Outer Loop Segment 5 routes that avoid Arnold Creek mitigation banks, citing potential US Army Corps permitting delays (possibly three years) and mitigation costs estimated at $9–30 million; the court voted 4–0 to pursue option two.
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Collin County commissioners on Tuesday approved a contract amendment with HDR to further evaluate alternative alignments for Outer Loop Segment 5, directing staff to prioritize routes that avoid mitigation-bank impacts after hearing federal permitting risks and potential mitigation costs.
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