{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "This dataset contains the Roads and Highways Road Network Linear Referencing System (LRS) HPMS structure type event polyline feature class which identifies the type of structure associated with a roadway segment, such as bridges, tunnels, or causeways, as reported through the Highway Performance Monitoring System (HPMS). The data supports system inventory management, asset maintenance, and network continuity analysis.", "description": "
The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS structure type event polyline feature class classifies roadway segments based on the presence of a major structure carrying or supporting the roadway. Structure types include bridges, tunnels, and causeways that influence roadway geometry, maintenance needs, and functional characteristics. <\/SPAN><\/P> The dataset ensures consistency between HPMS roadway data and the National Bridge Inventory (NBI) and supports structural reporting and asset management activities. It is reviewed and updated annually as part of ITD\u2019s Highway Performance Monitoring System (HPMS) submittal to the Federal Highway Administration (FHWA). <\/SPAN><\/P>