utility drawing rules

Question 1

what pipes connect to every house, and where do they terminate

Answer 1

strom, sanitary, sewer

the responsability of a muni contractor terminated at front prop line

Question 2

where to connect storm and sanitary sewer lines

Answer 2

low side of a lot.

Question 3

storm and sanitary sewer systems

Answer 3

• they are gravity sewer systems, and flow to the city mains by gravity.
• city mains located at lower part of subdiv.
• They start at the highest pt.
• Storm and sewer pipes cannot be curved, and must use straight sections between manholes of max length 150m
• max length between manholes is always 150 m

manholes required when:
- change in dir’n
- two lines intersect

• they must have min 1m clearance from eachother, CL to CL

Question 4

gas, power, telephone

Answer 4

shallow utilies which are located outside pavement

Question 5

water system

Answer 5

• pressure system, up or downhill
• no manholes, fitting used for
• beginning and end of water main
• change in dir’n
• two seperate lines intersect
• curves are allowed if pipe R is greater than 60m
• water main must be looped if it is greater than 150m in length
• dead end main shorter than 150m allowed
• must be at least 3m from storm and sanitary, CL to CL

Question 6

easement

Answer 6

• a strip of land within a private lot for the purpose of operating the water and sewer systems
• city can access it whenever
• min 3m width, could be more when two pipes are side by side
• if water and san/storm (sewer) go thru, need min CL distances