On June 9, 2009, the Northeast Iowa Highway 150/52 Coalition met with the Iowa Department of Transportation (Iowa DOT) in Cedar Falls, Iowa to discuss concerns regarding roadway conditions and safety which has become a concern because of the potential economic development in the area. In response to the issues raised by the coalition, the Iowa DOT requested that a road safety audit be conducted on the corridor to identify where low-cost improvements could be beneficially applied to address safety concerns
Iowa Department of Transportation
McDonald, Thomas J., "Road Safety Audit for IA 150/US 52 from I-380 to the Minnesota Border" (2009). InTrans Project Reports. 24.