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State dataMaps & Geospatial
Potential BMPs
Published by Connecticut Department of Transportation · Updated 10/22/2026
- Last updated
- 10/22/2026
- First published 07/14/2026
- Update frequency
- Not listed
- Formats
- 5
- CSV, GeoJSON, KML
- Coverage
- Connecticut
- Statewide
About this dataset
This service represents CTDOT’s Stormwater Drainage Network. The data is collected from a collection of resources including completed construction plans, right-of-way plans, permits & field reconnaissance. Not all drainage features depicted on the map accurately reflect the condition of the drainage network that is currently built. Data is updated, modified and added daily by CTDOT to both grow the inventory of drainage structures statewide and to improve accuracy. Drainage data is collected for continued compliance of the CTDOT MS4 Permit and for CTDOT’s Asset Management Purposes.
Please refer to the CTDOT Maintenance Guide for definitions of all Drainage Features:
ctdot-ms4-gis-database-maintenance-guide-jan-2021.pdf
Files and access
Links open the official government source
- CSVgeodata.ct.govCSV
- ArcGIS GeoServiceservices1.arcgis.comJSON
- GeoJSONgeodata.ct.govGeoJSON
- Shapefilegeodata.ct.govZIP
- KMLgeodata.ct.govKML
- ArcGIS Hub Datasetgeodata.ct.govWeb page
Links open outside websites we do not control.
Frequently asked questions
- Who publishes Potential BMPs?
- Connecticut Department of Transportation, part of State of Connecticut, publishes this dataset on Data.gov.
- How often is it updated?
- The publisher does not list a schedule. The last update was on 10/22/2026.
- How do I download it?
- It is available as CSV, JSON, GeoJSON, ZIP, KML. Use the links in Files and access, which open the official government source.
Similar data from other publishers
- Potential LandmarksDistrict of Columbia · D.C. Office of the Chief Technology OfficerThis dataset contains Historic Landmarks (by structure) officially designated by the District of Columbia. This is a consolidated collection of structures with historical significance within the District of Columbia as listed in the District of Columbia InventCSVGeoJSONKMLZIP+2Updated 12/16/2021
- Potential DistrictsDistrict of Columbia · D.C. Office of the Chief Technology OfficerThis dataset contains Historic Landmarks (by structure) officially designated by the District of Columbia. This is a consolidated collection of structures with historical significance within the District of Columbia as listed in the District of Columbia InventCSVGeoJSONKMLZIP+2Updated 12/20/2021
- Infiltration PotentialCity of SeattlePlanning level Infiltration Potential - NOT FOR ENGINEERING DESIGN. A starting point to determine if a Seattle modified PIT test should be considered for a site under development that is considering infiltration using green stormwater infrastructure or low impCSVXLSTXTZIP+3Updated 02/21/2024
- ECA - Potential Slide AreaCity of SeattleDisplays areas with potential landslides in the City of Seattle. A polygon feature class showing potential landslide areas. Used to implement and regulate the City of Seattle's Environmentally Critical Areas (ECA) policies. Last updated in 2001 via the SeattleCSVXLSTXTZIP+3Updated 02/17/2026
- BLM CO Oil and Gas PotentialDepartment of the Interior · Bureau of Land ManagementOil and gas occurrence potential areas within the state of Colorado for BLM Planning purposesXMLCSVXLSXTXT+5Updated 05/08/2024
Where this catalog comes from
- Data.gov CatalogU.S. General Services Administration
- State and local open data portalsSocrata Discovery API
- State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
- Government ArcGIS Hub sitesCity and county GIS data
Catalog checked 10/29/2026
We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.
Source: Data.gov · Last updated 10/29/2026 · Listing only; the data stays with the publisher
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