Datasets

Arlington County - GIS Portal

Technology Zones

The Technology Zones layer identifies designated Technology Zone areas within Arlington County, Virginia. These polygon features are used to locate and visualize areas that fall within specific technology-focused…

Loudoun County

Loudoun Park and Ride Lots

This point feature class contains all the identified Loudoun County Park and Ride vehicle lots according to the Loudoun County Office of Transportation and Capital Infrastructure. Update Frequency: As needed

Datathon 2025

VDOT Bidirectional Traffic Volume 2025

This layer consists of Average Daily Traffic (ADT) volumes with Vehicle Classification Data for most recent years, on Interstate, Arterial and Primary Routes. It also includes a list of each Interstate and Primary…

Virginia Beach

Fire Calls for Service

This dataset has been published by the Fire Department of the City of Virginia Beach and data.virginiabeach.gov. The mission of data.virginiabeach.gov is to provide timely and accurate City information to increase…

Arlington County - GIS Portal

Bike Comfort Index

The Bike Comfort Index is a polyline feature layer maintained by Arlington County's Department of Environmental Services. It contains approximately 6,700 street and trail segments, each scored according to a bicycle…

Fairfax County

Storage Tanks

Storage tanks contains the different types of tanks that hold different types of liquids in Fairfax County. The original data capture of the data in this layer was completed in 2013 using stereo models from the 2009…

Arlington County - GIS Portal

Zoning Polygons

Virginia Department of Environmental Quality

All Steams / Rivers

This is a reference dataset for the Virginia Water Quality Standards for all free-flowing, freshwater streams, rivers and flowpaths within the Virginia state boundary. See section 9VAC-25-260 of the Virginia…

Virginia Department of Environmental Quality

All Lakes / Reservoirs

This is a reference dataset for the Virginia Water Quality Standards for all lakes and reservoirs within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards…

Virginia Department of Environmental Quality

Trout Lakes / Reservoirs

This is a reference dataset for the Virginia Water Quality Standards for all lakes and reservoirs designated as stockable or natural trout waters within the Virginia state boundary. See section 9VAC-25-260 of the…

Virginia Department of Environmental Quality

Tidal Flow Paths WQS

This is a reference dataset for the Virginia Water Quality Standards for the tidal flowpaths within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards…

Virginia Department of Environmental Quality

Water Quality Monitoring Plan Stations (Current)

Water quality monitoring stations and parameters to be sampled during the calendar year. View Data Fact Sheet

Virginia Department of Environmental Quality

Rivers (2016 Final WQA IR Assessment)

All rivers and streams identified in the 2016 Virginia 305(b)/303(d) Water Quality Assessment. Line work and attributes should not be altered except by the developer (DEQ). This dataset constitutes the United States…

Virginia Department of Environmental Quality

Reservoirs (2016 Final WQA IR Assessement)

All reservoirs and lakes identified in the 2016 Virginia 305(b)/303(d) Water Quality Assessment. Line work and attributes should not be altered except by the developer (DEQ). This dataset constitutes the United States…

Virginia Department of Environmental Quality

Estuaries (2016 Final WQA IR Assessment)

All estuarine waters identified in the 2016 Virginia 305(b)/303(d) Water Quality Assessment. Line work and attributes should not be altered except by the developer (DEQ). This dataset constitutes the United States…

Virginia Department of Environmental Quality

2016 Final WQA Monitoring Stations

Sites within Virginia where DEQ or other data providers have collected water column, sediment, fish tissue or benthic macroinvertebrate samples within the given assessment data window (2016). Attributes assigned to each…

Virginia Department of Environmental Quality

Estuaries (2018 Final WQA IR Assessment)

All estuarine waters identified in the 2018 Virginia 305(b)/303(d) Water Quality Assessment. Line work and attributes should not be altered except by the developer (DEQ). This dataset constitutes the United States…

Virginia Department of Environmental Quality

Rivers (2018 Final WQA IR Assessment)

All rivers and streams identified in the 2018 Virginia 305(b)/303(d) Water Quality Assessment. Line work and attributes should not be altered except by the developer (DEQ). This dataset constitutes the United States…

Virginia Department of Environmental Quality

Reservoirs (2018 Final WQA IR Assessment)

All reservoirs and lakes identified in the 2018 Virginia 305(b)/303(d) Water Quality Assessment. Line work and attributes should not be altered except by the developer (DEQ). This dataset constitutes the United States…

Virginia Department of Environmental Quality

Rivers (2020 Final WQA IR Assessment)

Polyline layer of freshwater riverine features within Virginia included in the 2020 305(b)/303(d) Integrated Report Click Here to view Data Fact Sheet.