Manhole Covers Plus

**Marilynne** · 05-05-2013, 02:41 PM

I've been seeing some interesting manhole covers on my bike rides. These aren't the really interesting ones, but it's a start.

Care to join me?

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**Marilynne** · 05-05-2013, 02:44 PM

Water Cover

Water Meter Covers

**TedG954** · 05-05-2013, 02:48 PM

I like the idea.

Do you know why manhole covers are round?

**Marilynne** · 05-05-2013, 02:54 PM

No, tell me.

**TedG954** · 05-05-2013, 03:17 PM

Originally Posted by Marilynne

No, tell me.

By being round, with a lip, they are the only shape that can't fall back in to the hole.

**nikonpup** · 05-05-2013, 03:41 PM

Originally Posted by marilynne

i've been seeing some interesting manhole covers on my bike rides. These aren't the really interesting ones, but it's a start.

Care to join me?

*

maybe a challenge pictures here or two.

**Marilynne** · 05-05-2013, 04:11 PM

Originally Posted by TedG954

By being round, with a lip, they are the only shape that can't fall back in to the hole.

Wikipedia lists your answer first and a bunch of other reasons.

Manhole cover - Wikipedia, the free encyclopedia

**Marilynne** · 05-06-2013, 12:01 AM

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**Marilynne** · 05-06-2013, 12:09 AM

This one is covered in Sea Grape pollen

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**Michael J.** · 05-06-2013, 12:11 AM

It's an very intersting thread. Never knew that so many different cover- faces.

Re: Manhole Covers Plus