Tulsa County Election Board Secretary Patty Bryant projects a 45 percent voter turnout, which would mean 148,500 ballots cast.

Data on the Election Board’s website indicate that almost 3,400 ballots were cast during the early voting period. That includes 1,306 in-person and 1,256 mail-in absentees. Those and other early ballots will not be counted until Tuesday.

All voters in Tulsa County will decide on at least two issues — sheriff and a 0.05 percent countywide sales tax proposal. Proceeds from the 15-year tax, expected to raise $75 million, would be used mostly for roads, bridges and parks.

In addition to Tulsa, voters in Collinsville, Owasso, Jenks, Glenpool and the Tulsa County portion of Sapulpa will also have municipal sales-tax packages to consider.

Bixby, which has already passed a local sales-tax package, has an electric utility franchise election Tuesday.

In most cases, the maximum combined sales-tax rates of the local and county propositions on Tuesday’s ballots are 0.6 percent, the same as the local countywide tax that is due to end in December.

The exception is Glenpool, which would see a 0.55 percentage point increase in combined sales taxes if its three propositions and the county’s proposal all pass.