General details and cross sectional drawing of twin tube vehicular tunnel which goes under Squirrel Hill; details of reversible ventilation given; notes on drainage, paving, and lighting.
$4,000,000 traffic tunnel planned for Pittsburgh
Roads Streets
Roads and Streets ; 87 , n 12
1944
3 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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