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Thickness values are typically expressed in inches and derived from design plans, as built documentation, or pavement management system records. This dataset is used by engineers, planners, and researchers for evaluating pavement structure adequacy, forecasting maintenance needs, and analyzing the relationship between pavement design and performance. It is updated annually as part of ITD\u2019s Highway Performance Monitoring System (HPMS) submittal process to the Federal Highway Administration (FHWA) and reflects current data available from pavement inventory systems and design records. These are current \"working\" records. For the static, published data, please see the records stored at: https://www.fhwa.dot.gov/policyinformation/hpms.cfm", "copyrightText": "This dataset was developed and provided by the Idaho Transportation Department (ITD). 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