Highway tunnel under Houston Ship Channel will replace ferry; tunnel, being built by trench method, will be 3786 ft long between grade points and 2936 ft long between portals, with 6% grades, and will provide clear channel depth of 45 ft; concreting methods; approach tunnel details; high speed ventilation.
Subaqueous vehicular tunnel under construction at Pasadena, Texas
Roads Streets
Roads and Streets ; 92 , n 7
1949
Aufsatz (Zeitschrift)
Englisch
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