Construction Audit Tracking System

Find instructions on using our construction and inspection audit system that will be used by WSDOT for all design build projects and other construction, testing and inspection processes.

The Construction Audit Tracking System (CATS) provides a communications process that allows WSDOT and contractors to resolve non-compliance issues found during construction inspections. This system is a new need to WSDOT and does not replace any existing computer systems at the agency.

System instructions

Use these instructions to assist you with CATS:

166,800 electric vehicle

registrations in Washington in 2023, up from 114,600 in 2022.

87 wetland compensation sites

actively monitored on 918 acres in 2023.

25,000 safe animal crossings

in the Snoqualmie Pass East Project area since 2014.