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Outside diameter (OD) of adjacent manholes (including the bottom slabs) should have minimum of five (5) feet horizontal clearance.
You can't convert between feet and square feet.
90 feet, the same as distance between home and first
1sq feet is a measurement of area. Feet is a measurement of length. You can't convert between them.
It depends on how many feet there is from the floor to the ceiling, and how thick the ceiling is......
Good question...have to use an estimate, because I am sure there isn't nationwide numbers on this. EPA estimates that there is 740,000 miles of public sewer lines in the US* and on average length between manholes on a city street is 300-400 feet. So multiply 740,000 x 5280 / 350 which equals.... 11,163,428 So roughly 11 million manholes in the united states.
Good question...have to use an estimate, because I am sure there isn't nationwide numbers on this. EPA estimates that there is 740,000 miles of public sewer lines in the US* and on average length between manholes on a city street is 300-400 feet. So multiply 740,000 x 5280 / 350 which equals.... 11,163,428 So roughly 11 million manholes in the united states.
it is maximum 120 m .
10
Manholes are human access points for when the sewer system needs maintenance or repair.
There are 2.13 feet.
6.89 feet (between 6'10 and 6'11)
If they were rectangular they could fall down the manhole.
You can convert between feet and inches, or between cubic feet and cubic inches. You can not convert between cubic feet and inches.
sixty feet
between 482 billion and 499 billion feet
You can't convert between feet and square feet. It just doesn't make sense.