California Tunnels
At $15. 7 billion, it would run two giant tunnels each four stories high, for 35 miles under the. Webmay 16, 2024 · the new estimate for the delta tunnel project — which would transform the massive water system that sends northern california water south to farms and cities —. Webmay 17, 2024 · sacramento, calif. (ap) — california gov. Gavin newsom’s administration said thursday it will now cost more than $20 billion to build a giant tunnel.
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