If the estimated cost for a public works construction project is $75k or less, but cost overruns push the cost to $80k, should the public entity pay the prevailing wage or the public works contracting minimum wage for the project?

Section 290.230.5(1), exempts projects from the requirements of the new law where either the engineer's estimate or the bid accepted by the public body is less than $75,000 total. Only if a contract is subject to a change order (Sec. 290.230.7) would the amount above $75,000 be subject to the prevailing wage or PWCMW.  

However, Sec. 290.220 and 290.230 set forth the public policy intent that no contractor will be allowed to pay less than either the prevailing wage or the PWCMW wage where appropriate.

When read together, these statutes would appear to make it the duty of both parties to seek a change order if cost overruns pushed the cost of the project over the $75,000 limit. To avoid doing so might demonstrate intent to avoid the law.

However, the department is not able to provide legal guidance on individual contracts and how they might interact with Missouri law.