Grehan Stream
A stream of the city, 3.6 km as the open map draws it, crossing 1 suburb. Also recorded as “Ōinako”.
Where it runs
The centre of the water as OpenStreetMap draws it, centrelines, not banks, and not every reach carries water year-round. The faint outlines are suburbs.
The suburbs on its banks
The reports along it
290 council reports pinned within 150 m of the line, most often Water & drains and Roads & footpaths, 232 with a photograph. A pin is where a reporter stood, not a claim about the place itself.
Trees - General
Water General
Road Signage
Water Leak
Pothole
Water General
Water Leak
Facility - General Request
Water Leak
Water Leak
Water GeneralQuestions, answered briefly
3.6 km as mapped, 3 ways in the open map, crossing 1 suburb.
Akaroa.
The map also records “Ōinako”, the page answers to all of them.
It’s the centreline, the middle of the water as mapped on OpenStreetMap, not its banks. A line says where it runs, not how wide it is or whether it carries water today.
The record behind this
The line is OpenStreetMap’s, every named way tagged river, stream, drain or canal inside the city boundary, merged by name (ODbL). A line says where a waterway runs, not how wide it is; the live gauges are instruments, kept on /rivers.
This page as markdown: /river/grehan-stream.md · every waterway as data: /waterways.geojson · /waterways.json · every roll, counted: /geography.