You might have noticed Southern California gas prices dropping for the past month or so -- that's about to change.

On July 1, California's new gas tax kicks in. It will add an additional 5.6 cents per gallon of gas, with the money going to repair roads and road infrastructure. It's projected to generate more than $50 billion over the next decade.

But some experts say it still won't be enough. According to the LA Times, "officials estimate $130 billion is needed to bring the state’s roads and bridges into a state of good repair. The gas tax increases of 2017 will raise some $52 billion during the first 10 years but that will leave a road repair shortfall of approximately $78 billion."

“The current funding is not sufficient, it is not enough,” Tony Akel, a Fresno engineer who is a leader of the American Society of Civil Engineers told the LA Times. “We know that there is a big gap that is a result of years of underfunding.”

There was a move to repeal the bill by way of ballot measure last year, but it failed.