
As hundreds of wildfires raged throughout California, a report released at the Delta Conveyance Design and Construction Authority (DCA) on-line meeting on August 20 revealed that the cost estimate for Gavin Newsom's Delta Tunnel is up to $15.9 billion.
The estimate is based on a single tunnel with a total capacity of 6,000 cfs, with two intakes of 3,000 cfs. The project would feature 42 miles of tunnels and associated shafts, Southern Complex Facilities with a Pump Station and Forebay, and connections to the existing California Aqueduct of the State Water Project (SWP).
The tunnel is opposed by a large coalition of recreational and commercial fishermen, Tribal leaders, scientists, subsistence fishermen, family farmers, Delta business owners, boaters, environmental justice advocates, Southern California water ratepayers, elected officials and the people of California.
If built, critics say the actual tunnel costs would undoubtedly exceed the original estimates at the same time that the project hastens the extinction of winter and spring run Chinook salmon, Central Valley steelhead, Delta and longfin smelt and other state and federal listed fish species. The enormously expensive project would also imperil the salmon and steelhead populations on the Trinity and Klamath rivers that the Yurok, Karuk and Hoopa Valley tribes have been fishing for since time immemorial.
The construction costs would total $12,100,000,000. This would include $1,448,000,000 for the two intakes, $1,521,000,000 for the Southern Complex Facility, $805,000,000 for a Pumping Plant, $4,473,000,000 for the Tunnel and Shafts, and $522,000,000 for Utilities, Powers and Logistics. The Construction Subtotal would be $8,769,000,000 with a 38% contingency of $3,332,000,000.
In case you're wondering, that 38% contingency