The coalition Let’s Go Colorado is expected to announce Monday morning that it has turned in enough petitions to get a 0.62 statewide sales tax on the November ballot to pay for transportation.

The Secretary of State’s Office will need to approve at least 98,492 valid signatures from registered voters to certify the measure.

The tax – characterized as 6 cents on a $10 purchase – is expected to raise $767 million its first year, which would repay about $6 billion in bonds for roads, bridges, transit and projects chosen by local elected officials.

If voters approve the tax, 45 percent would go to state transportation projects, 40 percent to local governments and 15 percent for multimodal projects.

The coalition announced Sunday evening that it will hold a rally on the west steps of the state Capitol in Denver at 10:30 a.m. Monday

Organizers said the rally would include business, non-profit and a bipartisan collection of political leaders.

“The rally will also highlight workers who will benefit from an increased investment in transportation projects throughout Colorado,” according to Let’s Go Colorado.

Monday is the deadline turn in signatures to qualify for the ballot. Let’s Go Colorado could still have an opposing ballot question, Fix Our Damn Roads. The proposed ballot question would ask voters to force the legislature to put more existing budget money into transportation, without raising taxes.

The legislature also put money into transportation this year, Lawmakers put $645 million into transportation the next two years. Next year voters will be asked for permission to let the state borrow $2.35 billion for roads, bridges and transit, then pay it back with about $122 million annually from the state budget.