Created for Valley County Road and Bridge to help in Asset Inventory, Tracking and Reporting related to Maintenance Needs, Priority and Cost. Updated 10/21/2019
WARNING: Culmination of multiple datasets from multiple agencies within multiple projections. As asset inventory by Valley County Road and Bridge progresses, records will be added, data will be updated and other details (size, type, etc.) and locations will be refined. Ground-truthing has not occurred to verify the existence of culverts at all data points, nor to update details and locations for all culverts present in the dataset.VALLEY COUNTY DATA: 928 of the original records were collected by an independent contractor for Valley County in 2015. These are not all-encompassing of the total culverts present in Valley County. GPS type is unknown and it is assumed that no post-processing was completed based on varied locational accuracy for all data points. All points projected into WGS 1984 Web Mercator (Auxiliary Sphere) for viewing within ArcGIS Online and Collector for ArcGIS. BOISE NF DATA:1284 records received from Boise GIS Analyst on 3.13.2018. Original projection in NAD 1983 UTM Zone 11. These are not all-encompassing of the total culverts present in Boise NF. Locations of culverts according to INFRA_Roads database. Information available only for roads in FS jurisdiction that have had route surveys. Generally, maintenance level 3 roads. GRAIP survey locations were gps'd, which Paulette Blaseg converted to mileposted Features in Infra Roads.PAYETTE NF DATA:1050 records received from Boise GIS Analyst on 3.13.2018. A survey of the East Fork South Fork Salmon River road was completed by Valley County Road department, as no culverts were present in the USFS dataset. Original projection in NAD 1983 UTM Zone 11. These are not all-encompassing of the total culverts present in Payette NF. Meta data on creation of records not provided.VALLEY COUNTY PROCESSING:Any NF culvert records within 10m of a Valley County maintenance road were kept in the dataset. Layers were spatially joined with Road Labels from Valley County roads layer and a unique Culvert ID was assigned to each new asset point. NF culvert records were then transformed into WGS 1984 Web Mercator Auxiliary Sphere in order to be merged with Valley County Culvert dataset. All information on FS Culvert ID, Type and size were pulled over into the standardized Valley County Culvert dataset where applicable.
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