Proof of concept.This is an unofficial demo built by Datopian from the City of Evanston's public data. The official portal is data.cityofevanston.org. Questions or feedback: hello@datopian.com

A PortalJS proof of concept · data from the City of Evanston's ArcGIS Hub

Overhead Bridges

Bridges over roadways in the City of Evanston along with clearance heights and height types.

Records
36
Formats
5
Last updated
Jul 3, 2025

Download & API

Overhead Bridges (CSV)csv
Spreadsheet — attributes, with coordinates for point layers
Download
Overhead Bridges (GeoJSON)geojson
GeoJSON — for web maps and GIS tools
Download
Overhead Bridges (GeoParquet)geoparquet
Columnar — query with DuckDB / SQL
Download
Overhead Bridges (map tiles)pmtiles
Vector tiles — embed in a map
Download
Live ArcGIS layer (source)arcgis
Download

Rendered from PMTiles, queried in-browser from GeoParquet — no server. How this works

Schema

FieldTypeValues
OBJECTID_1integer3 to 323
Height
HEIGHT
string
Height Type
HEIGHT_TYPE
string3 values: Posted Height (31), Acutal Height (4), IDOT Posted Height (1)