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Grid
Federal Government to break up the land; section it into squares. It made it possible for them to apply alley's. -
When allies were made
Allies have been around since the beginning of the 19th century. -
Usefulness
Alleys were useful when it came to keeping working parts of urban life out of site. -
Needs
Chicago alleys were made for the practical needs of Chicago. -
Service
Alleys were laid all around the 58 blocks of the Illinois & Michigan Canal commissioners original town plat in 1830. It provided service access to property facing the main streets. -
Wood block pavement
Wood block pavement was used for for alleys. Samuel Nicolson was the superintendent of Boston and Roxbury Mill Corporation when he invented the process. -
Replacement
Wood block was replaced with Brick or Belgian Block paving schemes. -
How many alleys
98% of Chicago blocks had alleys -
Transportation
Alleys formed the back bone of our transportation system. -
located
Wooden paved alleys were added in historical places