Skip Navigation

pics @lemmy.world

CrimeDad @lemmy.crimedad.work

1y ago

OC

Ex marks the spot?

cross-posted from: https://pixelfed.crimedad.work/p/crimedad/710671012520754571

Ex marks the spot?
I found this marker at one end of the sidewalk of a drawbridge in Lewes, Delaware. There's an identical one at the other end. Any guesses as to what it means?
Delaware #infrastructure #drawbridge
@crosspost@lemmy.crimedad.work

Home @lemmy.crimedad.work

CrimeDad @lemmy.crimedad.work

1y ago

Ex marks the spot?

6 comments

Relevant XKCD
It might be some sort of survey benchmark. If there's one on each end of the bridge, it could be for measuring alignment of the movable section against the stationary section
- Sounds about right. I have seen similar markers in California to measure fault line movement on an annual basis, as well as several in Yellowstone for roughly similar reasons. Seems like this is a survey marker to measure distance or alignment.
Delaware Department of Transportation = DEL DOT
Datum point.
- Datum? I hardly knew 'um!

6 comments