(KNZA)--It will be Monday before its known for certain if a half-cent retailers sales tax will be imposed in Hiawatha to fund street, alley and parking improvements.

Unofficial results following Tuesday’s election had the sales tax being approved by just a 9-vote margin, 625 to 616.

However, thirty-eight provisional ballots were cast Tuesday and they won’t be considered until Monday when the Brown County Commission meets to canvass ballots from the election.

A provisional ballot is used to record a vote when there are questions about a given voter's eligibility.  

If approved, the sales tax would take affect April 1st, 2017 and be in effect for 30 years.   

The sales tax is projected to raise around $335,000 a year.