If voters approve, construction could start in June

http://rapidcityjournal.com/news/local/builder-if-voters-ok-civic-center-expansion-heavy-construction-starts/article_77584cae-17fe-5108-9564-703ee37248c6.html

"If funding of the arena is approved in March, completing the final design could take up to eight additional months, depending on when the Rapid City Council approves the contract for that design, according to city Operations Management Engineer Rod Johnson.
'There is still a lot of design work to be done that the council isn't going to authorize, depending on the results of the election' Johnson said.
He explained the sequence of events this way: First comes the completion of a final design; next comes opening the project to competitive bidding; then, after the awarding of bids, construction begins.
Heavy construction on the proposed expansion could begin this fall but ultimately span into the winter, Johnson said."

This is a confusing article. On the one hand, it sounds like construction will start right away with the current price tag. On the other, it sounds like construction is still a ways off, and meanwhile the price could go up in some unknown amount.