Amid rising concerns about California’s water future, the fifth largest reservoir in the state is primed for expansion. A coalition of water agencies, from Silicon Valley to Fresno, has agreed to partner with the federal government to raise the 382-foot-tall dam at San Luis Reservoir, the giant holding pool that looms as a small sea along Highway 152 in the hills between Gilroy and Los Banos. The dam’s enlargement would allow the federally owned reservoir to take in 130,000 acre-feet of additional water, equal to the annual use of more than 260,000 households. … While the proposed expansion hasn’t faced significant opposition — no small feat for such a large undertaking — a sticking point has emerged: a plan to move the nearby highway, accounting for nearly half of the cost of the $1 billion project.

Other infrastructure news:

• Lake County Record-Bee (Lakeport, Calif.): Dam decommission could seriously impact local economy says county-based organization​
• Construction Dive: America’s aging water infrastructure faces new threats