Datasets
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National Bridge Inventory NGDA
The National Bridge Inventory dataset is as of June 20, 2025 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation (USDOT)/Bureau... -
National Tunnel Inventory Element Data
The National Tunnel Inventory Elements dataset was compiled on July 22, 2024 and published on July 24, 2024 from the Federal Highway Administration (FHWA) and is part of the... -
National Tunnel Inventory
The National Tunnel Inventory dataset was compiled on July 22, 2024 and published on July 24, 2024 from the Federal Highway Administration (FHWA) and is part of the U.S.... -
Nonattainment Area - Particulate Matter - 2.5 Annual (1997 Standard)
The Nonattainment Area - Particulate Matter-2.5 Annual (1997) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S.... -
National Parks
The National Parks dataset is frequently updated by the National Park Service (NPS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation... -
Nonattainment Area - Carbon Monoxide (CO - 1971 Standard)
The Nonattainment Area - Carbon Monoxide (CO-1971) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of... -
Nonattainment Area - 8 hr Ozone (2008 Standard)
The Nonattainment Area - 8 hr ozone (2008) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation... -
Nonattainment Area - Sulfur Dioxide (SO2 - 2010 Standard)
The Nonattainment Area - Sulfur Dioxide (SO2-2010) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of... -
Aviation Facilities NGDA
The Aviation Facilities dataset is updated every 28 days from the Federal Aviation Administration (FAA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of... -
Nonattainment Area - 8 hr Ozone (1997 Standard)
The Nonattainment Area - 8 hr Ozone (1997) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation... -
Hydrocarbon Gas Liquids (HGL) Pipelines
The Hydrocarbon Gas Liquids (HGL) Pipelines dataset was updated on October 21, 2020 from the Energy Information Administration (EIA), with attribute data from the end of... -
Nonattainment Area - Particulate Matter - 10 (1987 Standard)
The Nonattainment Area - Particulate Matter- 10 (1987) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of... -
Petroleum Product Pipelines
The Petroleum Product Pipelines dataset was updated on May 10, 2021 from the Energy Information Administration (EIA), with attribute data from the end of calendar year 2024 and... -
Congressional Districts
The 119th Congressional Districts dataset reflects boundaries from January 3rd, 2025 from the United States Census Bureau (USCB), and the attributes are updated every Sunday... -
Crude Oil Pipelines
The Crude Oil Pipelines dataset was updated on October 21, 2020 from the Energy Information Administration (EIA), with attribute data from the end of calendar year 2024 and is... -
Nonattainment Area - 8 hr Ozone (2015 Standard)
The Nonattainment Area - 8 hr ozone (2015) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation... -
Nonattainment Area - Nitrogen Dioxide (NO2 - 1971 Standard)
The Nonattainment Area - Nitrogen Dioxide (NO2-1971) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of... -
Nonattainment Area - Particulate Matter - 2.5 Annual (2012 Standard)
The Nonattainment Area - Particulate Matter-2.5 (2012) dataset was updated on June 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...