HARRISBURG, Pa. (AP) - The Pennsylvania state Senate is scheduled to take up a major transportation spending proposal a day after the House voted to support it.

The Senate session started Wednesday and senators broke into party caucuses to discuss the matter privately.

The proposal is supported by Gov. Tom Corbett and would raise gasoline taxes and numerous motorist fees for the first time since the 1990s to spend $2.3 billion a year on roads, bridges and mass transit systems. That's roughly 40 percent of what the Department of Transportation spends now.

In the House, conservatives objected that it would be the second-largest tax increase in Pennsylvania history. Also, Senate Democrats hope to strip a provision inserted by House Speaker Sam Smith to force down workers' wages on some highway projects.