Data · dataset · 2024
Hampton Roads Elevation Certificates (NAVD 88)
Listed in Virginia Open Data Portal
This group includes the following items: 1.
Description
Hampton Roads Elevation Certificate Building Footprints: includes only building footprints where final elevation certificates are available, with elevations reported in the vertical datum provided on the elevation certificate (NGVD 29 or NAVD 88). 2. Hampton Roads Elevation Certificate Parcels: includes only parcels where final elevation certificates are available, with elevations reported in the vertical datum provided on the elevation certificate (NGVD 29 or NAVD 88).
Where necessary, conversions from NGVD 1929 to NAVD 1988 were completed using the VERTCON (NOAA NGS, 2019). Elevation certificates were collected from the following 12 localities: Chesapeake, Franklin, Gloucester County, Hampton, James City County, Newport News, Norfolk, Portsmouth, Southampton County, Suffolk, Virginia Beach, and York County. Localities included in the current inventory were able to provide digital elevation certificate copies.
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This inventory is not complete for the region, and elevation certificates will continue to be added to the database when available. The elevation certificate database was developed by HRPDC staff with support from the Center for Geospatial, Science, Education, and Analytics at Old Dominion University (ODU). We would like to acknowledge Manuel Solano (ODU) for his contributions to the Gloucester County and City of Norfolk elevation certificate data development.
Building footprints are courtesy the VGIN statewide building footprints layer and locality GIS departments. Building attributes and parcels are courtesy of the Hampton Roads Regional Parcels layer and locality GIS departments. Current flood zones are courtesy of the FEMA National Flood Hazard Layer, with base flood elevations reported in NAVD 1988 where available.
A complete list of attribute descriptions is available here . Created 2/8/2019 Updated 10/10/2020
Links
Get the data
- Publisher page hrgeo.org/maps/HRPDC-GIS::hampton-roads-elevation-certificates-navd-88 ↗
documentation · download · from data virginia gov
- ArcGIS GeoService geo.hrsd.com/hrgeo/rest/services/regionalgis/ElevationCertificatesNAVD88/Ma… ↗
download · from data virginia gov
Where it is published
- Virginia Open Data Portal dataset page data.virginia.gov/dataset/hampton-roads-elevation-certificates-navd-88 ↗
landing page · from data virginia gov
Catalogue records · 1
- CKAN API data.virginia.gov/api/3/action/package_show?id=cef93735-d0fa-4510-b394-951c7554a… ↗
metadata API · from data virginia gov
Topics
- Inferred from text
- Sequencing 65%
Provenance · 1 source records, 6 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Virginia Open Data Portal | cef93735-d0fa-4510-b394-951c7554aed4 | 53 min ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[modality].local:modality:sequencing | enrichment · data virginia gov | keyword-concept-rules@1.0.0 | title+description (65%) |
| created_date | source · data virginia gov | connector:data_virginia_gov@1.0.0 | |
| description | source · data virginia gov | connector:data_virginia_gov@1.0.0 | /notes |
| publication_date | source · data virginia gov | connector:data_virginia_gov@1.0.0 | |
| title | source · data virginia gov | connector:data_virginia_gov@1.0.0 | /title |
| updated_date | source · data virginia gov | connector:data_virginia_gov@1.0.0 |