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600 datasets

CA System Performance Measures, Statewide and by CoC

Published by: California Interagency Council on Homelessness
Last updated: Monday, December 22, 2025
File types: CSV

The California System Performance Measures (CA SPMs) are a series of metrics developed by the California Interagency Council on Homelessness (Cal ICH)...

Bottlenecks

Published by: Caltrans
Last updated: Sunday, June 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Bottleneck Mapping is a subproject of the Mobility Performance Report, which is one of the products of the Mobility Performance Reporting and Analysis...

Caltrans Districts

Published by: Caltrans
Last updated: Sunday, June 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The District boundary definitions are primarily based on the California county boundaries. The Board of Equalization (BOE) County and City Boundary we...

COVID-19 Wastewater Surveillance Data. California

Published by: California State Water Resources Control Board
Last updated: Tuesday, September 10, 2024
File types: CSV, DOCX, XLSX

NOTICE: As of September 6, 2024, the wastewater surveillance dataset will now be hosted on: https://data.chhs.ca.gov/dataset/wastewater-surveillance-d...

State Highway System Intersection

Published by: Caltrans
Last updated: Sunday, June 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

As part of the Transportation System Network Replacement Project (TSNR), Highway Inventory module data migration, it was determined Caltrans would be ...

Commercial Vehicle Enforcement Facilities

Published by: Caltrans
Last updated: Sunday, June 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

A Commercial Vehicle Enforcement Facility (CVEF) commonly called a Weigh Station (WS) is a checkpoint typically located directly off the State highway...

Los indicadores del cambio climático en California

Published by: California Office of Environmental Health Hazard Assessment
Last updated: Sunday, June 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

Una introducción al informe de los indicadores del cambio climático en California de 2022. Contando la historia del cambio climático en California, me...

Airport Boundaries

Published by: Caltrans
Last updated: Sunday, June 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

California Department of Transportation (Caltrans), Division of Transportation Planning, Aeronautics Program provided airport layout drawings with est...

1D Subsidence Modeling Files for the Central Valley

Published by: California Department of Water Resources
Last updated: Sunday, June 28, 2026
File types: PDF

Model files and technical memorandum for one-dimensional subsidence models that are discussed in DWR's subsidence best management practices (BMP) docu...

Safety Roadside Rest Areas

Published by: Caltrans
Last updated: Sunday, June 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Caltrans provides Safety Roadside Rest Areas as a part of the State Highway System pursuant to Streets and Highways Code, Sections 218-226.5. Safety R...