TRIBOROUGH TUBE PLANNED ACROSS CITY AT 38TH ST. AND UNDER EAST RIVER; TO CARRY MOTOR TRAFFIC Walker Urges Project of Experts to Cost $86,000,000. TWIN TUNNELS PROVIDED Main Artery Runs East From 10th Av. and Connects With Brooklyn and Queens. FEEDERS TO BE TWO-DECK Sponsors Assert Tube Would Pay With 15,000,000 Cars a Year at 50-Cent Toll. Network of Tubes Proposed. Approach Tunnels in Plan. FOR 3-BOROUGH TUBE ACROSS THE CITY $100,000 for Borings. Pedrick Sees Permanent Relief.
Sponsor triborough tunnel linking Manhattan, Queens and Bklyn