SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) Environmental Engineering Design of Sewer
The recommended spacing of manholes for sewers having a diameter over 2.0 m on straight runs as per IS: 4111 (Part 1) – 1986 (Reaffirmed 2001) is:
1
100 m
2
300 m
3
200 m
4
50 m