A design prototype by Datopian, not an official website
Find a Commonwealth ResourceFairfax County
Non-marine clay shrink swell soils in Fairfax County. These are soils containing other shrinking-swelling clays that can lead to foundation distress if precautions are not taken during design and construction.
Updated Oct 8, 2026
Fairfax County
Marumsco soils in Fairfax County. Marumsco soils are mapped in complexes with other soil types. The complexes are highly variable and consist of combinations of clays, silts, sands, and gravels. They may also be…
Updated Oct 8, 2026
Fairfax County
Landfill properties in Fairfax County.
Updated Oct 8, 2026
Fairfax County
Watersheds within Fairfax County. There are 30 watersheds delineated across Fairfax County.
Updated Oct 8, 2026
Fairfax County
The voting precincts within Fairfax County.
Updated Oct 8, 2026
Fairfax County
Voting locations for precincts within Fairfax County. Some features are the voting locations for 2 precincts and are identified in the attributes by having a value in the secondary precinct identifier.
Updated Oct 8, 2026
Library of Virginia
In 1818, Congress passed the first of three major Revolutionary War pension acts. The act granted lifetime pensions to all men who had served as regular army soldiers in the Continental Line and who could demonstrate…
Updated Sep 17, 2026
U.S Department of Transportation
Historic Highway Performance Monitoring System sample data for the year 2006
Updated Oct 25, 2026
U.S Department of Transportation
State DOT will provide Local Vehicle-Miles-Traveled (VMT) summarized by FHWA Adjusted Urban Area.
Updated Oct 25, 2026
U.S Department of Transportation
The tolls facility program provides information on U.S. toll facilities in operation, financed, or under construction that States and various toll authorities voluntarily provide to FHWA biennially. It captures the…
Updated Oct 25, 2026
U.S Department of Transportation
The National Tunnel Inventory (NTI) records structural, operational, and safety inspection data for public highway tunnels across the United States. State departments of transportation, federal agencies, and tribal…
Updated Oct 25, 2026
U.S Department of Transportation
This data set comprises all TIGER grants rounds up to 2016
Updated Oct 25, 2026
U.S Department of Transportation
State DOTs provide the location limits of highway sections to be used to represent statewide aggregations based on a statistically valid Sample Panel. The North contains data for the following States: Maine, New…
Updated Oct 25, 2026
U.S Department of Transportation
State DOTs provide the location limits of highway sections to be used to represent statewide aggregations based on a statistically valid Sample Panel. The South contains data for the following States: Alabama, Arkansas,…
Updated Oct 25, 2026
U.S Department of Transportation
This is list of data elements and their attributes that are used by data assets at the Federal Highway Administration.
Updated Oct 25, 2026
U.S Department of Transportation
Annual lane miles in the National Highway System by rural / urban and functional system for the 50 states, DC, and Puerto Rico from the Highway Statistics table HM-43. (Note: In 2009, Functional System changed…
Updated Oct 25, 2026
U.S Department of Transportation
This data represents HPMS Sample limits that correspond to the HPMS Section Data. This dataset contains expansion factors that are used to expand the attributes to State wide aggregation. More information regarding the…
Updated Oct 25, 2026
U.S Department of Transportation
State DOT will provide Local Vehicle-Miles-Traveled (VMT) summarized by FHWA Adjusted Urban Area.
Updated Oct 25, 2026
U.S Department of Transportation
Select summary highway statistics, 1980 - 2017, mileage, lane-miles, vehicle miles traveled, and fatalities by state and functional system.
Updated Oct 25, 2026
U.S Department of Transportation
State DOTs provide the location limits of highway sections to be used to represent statewide aggregations based on a statistically valid Sample Panel. The Mid-America contains data for the following States: Illinois,…
Updated Oct 25, 2026
