The Pima County Board of Supervisors is putting road funding at the top of their agenda, and fixing the budget's shortfall may include raising Arizona's gasoline tax, a press release from Pima County said.

Road funding heavily relies on an 18-cent-per-gallon state fuel tax, which has not been raised since 1990. Since 1991, road revenue has dropped from $680 million to $549 million, which is a 20 percent drop in funding.

Part of the solution includes asking Arizona legislators to stop taking gas tax revenues, which would otherwise be distributed to counties to build and maintain roads, to supplement the state general fund. Another is to ask for an increase to the state gasoline tax by 10 cents per gallon.

"In a growing state where we are competing with other states for economic opportunities, unless we begin to recognize that we need to fund our infrastructure and transportation investments, we will become economically uncompetitive," said Pima County Administrator Chuck Huckelberry.

A supermajority of lawmakers would be required to increase the tax, but a simple majority could place it on the ballot for voters to decide, the release said.