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Although the Chicago area was surveyed and marked off into legal "squares"
in 1821, the tilted angle of most Bridgeport streets north of Thirty-first
street are oriented with reference to Archer avenue. The reason being was
that Archer Road had been built before any of the north-south/east-west
grid streets were real. In other words, the rectangular survey was a plan
not yet fully implemented. The principles of the rectangular survey
were evident nonetheless. Cross-streets are set out at right-angles (the
meaning of the word rectangle) to Archer Road, but only as far as the
section line which later became Thirty-first street. Note that the white
house in the left of the photograph was originally a rectangular building
and later extended to fill in the space up to the sidewalk/street. This
was much the way Bridgeport itself had grown.
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