The Michigan Department of Transportation failed to provide documentation showing proper inspections of aggregates and aggregate suppliers used in road construction projects, according to an audit ...

LANSING — An audit released Wednesday identifies significant quality control problems related to the gravel the Michigan Department of Transportation uses to build and repair roads. The state road ...

Michigan’s auditor general recently found that the state Department of Transportation allowed industry representatives to influence a study on the aggregates market. The Office of the Auditor ...

The Michigan Department of Transportation did not follow its own contracting guidelines and “allowed industry stakeholders influence” in a controversial study of the aggregates market in Michigan, the ...

LANSING – When Michigan gravel companies wanting to open or expand a mine are opposed by neighbors objecting to the noise and dust, they point to a 2016 consultant's study, commissioned by the ...