SALEM -- Lawmakers on Wednesday unveiled a multi-billion-dollar package to pay for traffic-busting projects, earthquake retrofitting, public transit expansions and more through tax and fee increases.

The 10-year plan comes as legislators are trying for the second time in two years to pass a money-raising package to improve Oregon's crumbling infrastructure. But negotiations are already in jeopardy of failing over the same political rift that killed talks last time around: the state's clean fuels law.

Officials have warned for years that roads and bridges will continue to deteriorate and cause traffic jams -- and leave Oregon vulnerable to a devastating earthquake -- without new funds.

Sen. Lee Beyer, D-Springfield, in the Senate chamber.

Political leaders agree. Gov. Kate Brown, Senate President Peter Courtney, D-Salem, and House Speaker Tina Kotek, D-Portland, have said achieving a transportation deal is among their top priorities for the 2017 lawmaking session.

Wednesday's 298-page bill is the culmination of months of public hearings, private meetings and bill drafting by 14 select lawmakers and their staffs.

"It feels good to have something out there for people to shoot at," said Sen. Lee Beyer, D-Eugene, who is co-chairman of the special transportation committee.

The package lists tax and fee increases, including:

>> Statewide gas tax increase from 30 cents to 44 cents

>> Vehicle registration fee increases, with higher fees for fuel-efficient cars and electric vehicles

>> A 0.1 percent employer payroll tax to pay for public transit projects

>> A 3 percent tax on new bicycle sales

>> A 0.75 percent tax on new and used vehicle sales

>> A 9-cent gas tax and $15 vehicle registration fee in the Portland metro area

The state would also be instructed to seek federal permission to install tolls on Interstate 205 and Interstate 5 at the Washington border.

The plan also lists specific projects, including:

>> $338 million for adding lanes to I-5 through the Rose Quarter

>> $152 million for I-205 Abernethy Bridge improvements

>> $188 million for widening I-205

>> $98 million for adding lanes to Oregon Route 217

>> Dozens of smaller projects statewide

In response to this year's devastating winter weather, the bill also calls for Portland, Salem and Eugene to salt and plow key roads after more than 2 inches of snowfall.

In coming days, the transportation plan will be discussed at a series of public hearings and undergo revisions based on input from legislators and lobbyists.

Even with time to refine the proposal, its passage is not certain. Democrats hold majorities in the House and Senate, but don't have the supermajorities needed to raise taxes without Republicans. That means every tax-raising plan will need bipartisan support.

A dividing line has persisted between some Democrats and Republicans over Oregon's low-carbon fuel standard, or "clean fuels" law, which has been wedged into transportation negotiations since the last try at a package, in 2015. Disagreement over the law played a part in failed negotiations at the time.

Republican leaders wanted to repeal the clean fuels law then, saying it makes gas more expensive. But now they want only to modify the law, which is designed to make oil distributors lower the carbon content of fuels sold in Oregon. They want to make fuel pump receipts show the cost-per-gallon of the law, and find another way to cap its costs.

Senators involved with crafting the transportation plan say members of both parties in the Senate support modifying the clean fuels law to pass a transportation plan in that chamber. But not so among House Democrats, they and lobbyists say.

In an interview with The Oregonian/OregonLive last week, Kotek said changing the clean fuels law could cause some House Democrats to oppose the transportation plan.

"It would be a shame to make that part of the transportation discussion again," Kotek said.

In 2015, nearly 20 House Democrats threatened to tank the transportation plan over the law. It's unclear if Democrats' position has changed now that Republicans have eased their calls for repeal of the clean fuels provision in favor of modifying it.

Sen. Brian Boquist, R-Dallas, in the Senate chamber.

Sen. Brian Boquist, a Dallas Republican involved with crafting this year's transportation plan, said the rift over clean fuels has weighed "heavily" on transportation talks. Boquist said he and Beyer will try to meet with House Democratic leadership to iron out their differences.

Beyer said he's more optimistic about the chances of passing a transportation plan this year than in 2015.

For his part, Boquist has been blunt about how negotiations have progressed, saying last week that they were chaotic.

Even if lawmakers pass a transportation plan, voters may still be able to throw out parts increasing taxes and fees if they are referred to the ballot.

-- Gordon R. Friedman

503-221-8209; @GordonRFriedman