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This week I initially planned a twin column, however I am advertise the answer to a "shocking" inquiry to next week. This day I am answering a inquiry from Hollie who wrote:

Q: I have actually heard plenty of theories about how numerous city blocks equals one mile -- anywhere from eight to twelve blocks per mile. And, some civilization say that when you obtain to the north side the proportion is different than the is downtown. So, how numerous city blocks same one mile in Chicago, and also does the ratio readjust with what area of the city you are in?

Thanks, Hollie, for the question. The general dominion is eight blocks same a mile, detailed you are counting the next of the block that is 660 feet lengthy rather 보다 the 330 foot side. Yet why is this true?

Chicago was planned top top a grid device with each grid measure one square mile. Eight typical city blocks fit within a grid, although countless times these blocks are further subdivided (such together in the downtown area) which deserve to seem to litter off the eight blocks rule. So, fairly than counting each and also every block, the easiest means to measure your street is to overview yourself by the city"s number is numbered system.

A traditional city block in Chicago has 100 potential resolve numbers. Following the net system, then, one mile equates to 800 numbers. So, here"s just how it works:

Many the Chicago"s major streets signify either a fifty percent mile or mile mite on the grid. The starting point because that Chicago"s numbering system is the intersection of State and also Madison in the Loop. Traveling phibìc from this intersection, the very first half mile point is Kinzie, which is 400 phibìc (half the 800, gain it?). You"ll have actually traveled a mile when you reach Chicago way (800 North). Making use of this formula, figuring the end the rest of the fifty percent mile and also mile roadways is quite easy. Continuing north, the following markers are division (1200 N), phibìc Ave. (1600 N), Armitage (2000 N), Fullerton (2400 N), etc.

The same preeminence holds true if you space traveling east and west. Going east, the very first half mile street is King Dr. At 400 East, and the very first mile street is head Grove at 800 East. Travel west indigenous State and also Madison, the streets include Stewart Ave. (400 W), Halsted (800 W), Racine (1200 W), Ashland (1600 W), etc.

One notable exception is directly south the Madison whereby a number is numbered discrepancy exists for the very first three mile south. Instead of 800 South, the first "mile" street southern of Madison is Roosevelt in ~ 1200 South. The second mile southern is Cermak at 2200 South, and also the 3rd mile is 31st Street (3100 S). After ~ 31st, however, the 800 rule uses again, and the next mile markers are at 39th, 47th, Garfield (5500 S), etc.

So, by performing some straightforward arithmetic, figuring the end how much you"ve travel in Chicago is a reasonably simple matter. In general, simply count how numerous "hundreds" you have actually traveled and remember the eight hundreds equals a mile.

I would love to obtain into the history of metropolitan planning in Chicago, however that will need to be the topic of another column.

Ask me a question. Now. Don"t make me come end there. Send your concerns to librarian and also it may be featured in a future column.