API Key
Overview
This is the City of Seattle's Right-of-Way (ROW) Impacts API. It is intended to share data on current traffic incidents and construction events that are obstructing the public ROW.
Data is shared in the form of TDX and WZDX feeds and objects, as outlined below.
In order to use the API, you will need an API Key. To obtain an API Key, or to view your existing API Key, please log in or sign up.
Usage
URL
Allowed Methods
- GET
Headers
- Content-Type: Should be
application/json. - X-Api-Key: Your API Key.
Params
- type: (Optional). Determines the type of the features returned. Allowed values are:
workzone,roadevent, orincident. Default isroadevent.
Response
The response schema is determined by the supplied type parameter.
workzone: A WorkZoneFeed with WorkzoneRoadEvent features.*incident: A RoadIncidentFeed with IncidentRoadEvent features.*null, roadevent: A custom Feed with both WorkzoneRoadEvent and IncidentRoadEvent features.*
*DetourRoadEvent features are not supported.
Example
Request
GET https://rowimpacts.adc.seattle.gov/api/v1/feed?type=roadevent Content-Type: application/json X-Api-Key: your_api_key
Response
HTTP/1.1 200 OK
Date: Thu, 14 May 2026 19:49:57 GMT
Content-Type: application/json
{
"feed_info": {
"publisher": "Seattle Department of Transportation (SDOT)",
"contact_name": "SDOT Technology & Innovation Team",
"contact_email": "684-Road@seattle.gov",
"update_frequency": 300,
"update_date": "2026-05-14T19:49:07.893093",
"version": "0.1",
"license": "https://creativecommons.org/publicdomain/zero/1.0/",
"data_sources": [
{
"data_source_id": 1,
"organization_name": "Seattle Department of Transportation (SDOT)",
"contact_name": "SDOT Technology & Innovation Team",
"contact_email": "684-Road@seattle.gov",
"update_frequency": 86400,
"update_date": "2026-05-13T20:47:08.587006"
},
{
"data_source_id": 2,
"organization_name": "Seattle Department of Transportation (SDOT)",
"contact_name": "SDOT Technology & Innovation Team",
"contact_email": "684-Road@seattle.gov",
"update_frequency": 300,
"update_date": "2026-05-14T19:49:05.370907"
}
]
},
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"id": "4e03012a-3c06-4bfe-a89d-8cceff213d8a",
"geometry": {
"type": "LineString",
"coordinates": [
[
-122.355587,
47.63832
],
[
-122.355579,
47.639116
]
]
},
"properties": {
"core_details": {
"data_source_id": 1,
"event_type": "work-zone",
"road_names": [
"West"
],
"direction": "undefined",
"description": {
"PermitNumber": "SUUTIL0028453",
"PermittedUseDesc": "Side Sewer/Drainage"
},
"creation_date": "2026-05-13T20:47:08.001983",
"update_date": "2026-05-13T20:47:08.001991"
},
"start_date": "2025-12-03T00:00:00",
"end_date": "2026-06-01T00:00:00",
"is_start_date_verified": true,
"is_end_date_verified": true,
"is_start_position_verified": true,
"is_end_position_verified": true,
"location_method": "channel-device-method",
"vehicle_impact": "unknown",
"types_of_work": [
{
"type_name": "maintenance",
"is_architectural_change": false
}
],
"restrictions": []
}
},
...
]
}