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USA: Alameda Street Wet Weather Conveyance Tunnel in San Francisco
Stormwater conveyance tunnel;
The Alameda Street Wet Weather Conveyance Tunnel (AWWCT), approximately 3,800 feet long with a 12-foot-wide inside diameter, ....
https://tunnelingonline.com/alameda-street-wet-weather-conveyance-tunnel-in-san-francisco/
cover tunnel photo by: Matt Brown from London, England / CC BY
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