Iowa requires all contractors to have an ATSSA or IMSA trained traffic control technician (or equivalent) on staff. The complete language of the Iowa specification follows:
Section 2528. Traffic Control
C. Traffic Quality Control
- Maintain a Traffic Control Technician on staff, even though the traffic control portion of the contract may be subcontracted. The Traffic Control Technician is required to have attended and passed the exam in an ATSSA Traffic Control Technician, IMSA Work Zone Traffic Control, or Minnesota DOT Traffic Control Supervisor training class. This Traffic Control Technician is responsible for overall management of the Contractor’s quality control program for traffic control.
- On a daily basis as the project is constructed, perform the following quality control work associated with monitoring and documenting traffic control conditions:
- Review all traffic control operations for compliance with contract documents and maintain a project traffic control daily diary in a format provided by the Contracting Authority. Submit this diary to the Engineer. It will become a part of the Contracting Authority’s permanent project records. The Engineer may require submission of completed portions of the daily diary at routine intervals during construction of the project. In the diary include:
- Listing and station location of traffic control used each day referenced to the appropriate Standard Road Plan, project plan sheet, etc.,
- All reviews of traffic control devices and operations, whether satisfactory or unsatisfactory, and corrections made,
- Approved changes to the contract document’s traffic control,
- Incidentals affecting the efficiency and safety of traffic, and
- A daily list of trained flaggers used, including hours worked.
- Monitor traffic operations and submit proposed Traffic Control Plan changes to the Engineer for approval.
- Coordinate all changes to the Traffic Control Plan.
- Coordinate all traffic control operations, including those of subcontractors and suppliers.