David wrote:

I lived on a street called Hessler Court in Cleveland. Oak timbers,
end
grain up, each about the size of a brick. I don't know the depth of
the
"bricks". The street is about 150 years old (IIRC).

What part of Cleveland?

What you are describing has often been used as a machine shop floor.

Horseburg & Scott, a gear box manufacturer on Hamilton Av in Cleveland
used it for their shops.

Lew