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.
Portland Oregon's downtown city block is 68,000, while Chicago's uses a double block size of 217,000. The average city has from 15 to 20 blocks per mile, which range from a 264' to 352' frontage which is usually a square, or about 69,000 to 123,000 sq. ft. or 1.60 to 2.84 Acres.