The Environmental Protection Agency has issued a new, more detailed plan for laying off 25 percent of its employees and scrapping 56 programs including pesticide safety, water runoff control, and environmental cooperation with Mexico and Canada under the North American Free Trade Agreement.
This would make most of the standard city blocks in Chicago 1/8 mile long and 1/8 mile wide. There are some areas of downtown Chicago where the blocks are 1/16 mile long. But the vast majority of the city has 1/8 mile blocks.
The basic Manhattan street grid is 200' North/South and 600' East/West. Over time, a few additional avenues were inserted in a few places (such as Madison, between Fifth and Park Avenue (nÃ© Fourth) and Lexington (between Park and Third). In those cases, the block length is ~300'.