How many types of inspections are typically completed for sign structures?

In the context of highway construction and the inspection of sign structures, there are typically three distinct types of inspections conducted. These are designed to ensure both the safety and compliance of the sign structures with relevant standards and regulations.

The three types of inspections generally include:

1. Installation Inspection: This inspection takes place during the actual installation of the sign structures. Inspectors verify that the installation is carried out according to the approved plans and specifications. They check for proper placement, alignment, and support of the sign structures to ensure they will withstand environmental factors like wind and debris.

2. Maintenance Inspection: After the installation is complete, periodic maintenance inspections are necessary to assess the ongoing condition of the sign structures. This includes checking for any signs of wear or damage due to weather, impact, or corrosion. Proper maintenance ensures the longevity of the sign and public safety.

3. Final Inspection: This occurs once the sign has been installed and is ready for operation. The final inspection confirms that everything is in place and functioning as intended. Inspectors will check for visibility, structural integrity, and compliance with all relevant codes.

Understanding these three types of inspections is crucial for maintaining highway safety and ensuring that sign structures perform their intended functions effectively.