North MacGregor Relief Tunnel in Houston, TX – Featured Archive
North MacGregor Relief Tunnel in Houston, TX – Featured Archive https://www.southlandholdings.com/wp-content/themes/corpus/images/empty/thumbnail.jpg 150 150 Southland Holdings https://www.southlandholdings.com/wp-content/themes/corpus/images/empty/thumbnail.jpgNORTH MACGREGOR RELIEF TUNNEL HOUSTON, TEXAS The North MacGregor Relief Tunnel in Houston, Texas is a significant infrastructure project worth $13 million. It spans approximately 3,340 feet and has a cutting diameter of 189 inches. The tunnel features precision-made segmented liners with an outer diameter of 179 inches and an inner diameter of 161-1/4 inches, manufactured with zero tolerance for precision. Completed in 2008, this tunnel was constructed in the midst of the second largest…
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