Motorists will have to dole out more money to fuel up their vehicles now that the gas tax has jumped another 10 cents per gallon.

The increase went into effect on New Year's Day as part of a state tax on gasoline wholesalers to pay for transportation projects.Gasoline taxes went up by almost a dime per gallon, while diesel taxes will rise by 13 cents per gallon for the second straight year, according to the Department of Revenue.Customers have certainly noticed the change, according to Melinda Cardell, a cashier at the Shell Gas Station at 7605 Interchange Road, Franklin Township."Everybody's complaining, because they said they just lowered the gas long enough to go shopping for the holidays, and now they're going to up the gas and hurt everybody more," Cardell said.The rise in prices marks the second of three increases that a sweeping 2013 law imposes over three years to boost funding for highway, road and bridge construction.A series of tax and motorist fee increases in the law are designed to raise $2.3 billion a year, an increase of about 40 percent over what the Pennsylvania Department of Transportation had been spending to build and repair highways and bridges.Primarily, the new money is designed to stem a rising backlog of needed repairs or modernizations to bridges, highways and mass transit agency facilities.Proponents of the law, including major business advocacy groups, had warned that, without more money, the state was risking a loss of commerce and quality of life, and possibly a catastrophe.A small slice of the money goes to airports, ports, railways, and walking and cycling routes.Gov. Tom Corbett signed the law in November 2013.According to AAA, the price of gas in Pennsylvania averaged $2.58 per gallon on Tuesday, down about 90 cents from a year ago.The Corbett administration has argued that retailers might not pass all of the tax increase on to consumers, but retailers have disputed that.The Associated Press contributed to this report.