reading the signal…
Signals / Object / Mapped places
in Cottage Grove, OR·counted·81 all time
A covered access opening for underground water infrastructure, typically a round metal cover set into pavement.
Counted, not streamed: Water Manhole has no time series, so it is read as a footprint across places. All-time count by city.
Things that physically exist: street furniture, signs, buildings. All-time counts.