Data · dataset · 2011
Elevation Benchmarks
Listed in Chicago Data Portal
The following dataset includes "Active Benchmarks," which are provided to facilitate the identification of City-managed standard benchmarks.
Description
Standard benchmarks are for public and private use in establishing a point in space.
Note
Read the rest (3 more)
The benchmarks are referenced to the Chicago City Datum = 0.00, (CCD = 579.88 feet above mean tide New York). The City of Chicago Department of Water Management’s (DWM) Topographic Benchmark is the source of the benchmark information contained in this online database. The information contained in the index card system was compiled by scanning the original cards, then transcribing some of this information to prepare a table and map.
Over time, the DWM will contract services to field verify the data and update the index card system and this online database.This dataset was last updated September 2011. Coordinates are estimated. To view map, go to data.cityofchicago.org/Buildings/Elevation-Benchmarks-Map/kmt9-pg57 or for PDF map, go to cityofchicago.org/content/dam/city/depts/water/supp_info/Benchmarks/BMMap.pdf.
Please read the Terms of Use: cityofchicago.org/city/en/narr/foia/data_disclaimer.html.
Links
Get the data
- CSV data.cityofchicago.org/api/views/zgvr-7yfd/rows.csv?accessType=DOWNLOAD ↗
download · from data cityofchicago org
Where it is published
- Chicago Data Portal dataset page data.cityofchicago.org/Buildings/Elevation-Benchmarks/zgvr-7yfd ↗
landing page · from data cityofchicago org
Catalogue records · 1
- SODA API data.cityofchicago.org/resource/zgvr-7yfd.json ↗
metadata API · from data cityofchicago org
Topics
- Stated by source
- Buildings
- From keywords
- Computer Science & AI · Social Science
- Inferred from text
- Tabular 65%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Chicago Data Portal | zgvr-7yfd | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 | |
| concepts[field].local:field:social-science | mapping · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 | |
| concepts[modality].local:modality:tabular | enrichment · data cityofchicago org | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[topic].socrata_category:data_cityofchicago_org:buildings | source · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 | |
| created_date | source · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 | |
| description | source · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 | /resource/description |
| publication_date | source · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 | |
| title | source · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 | /resource/name |
| updated_date | source · data cityofchicago org | connector:data_cityofchicago_org@1.0.0 |