I am exploring for the design code or manual and standard drawings of access and maintenance manholes of the storm water conveying tunnels. (i.e free flow tunnels not pressurized ones) but all of these codes & drawings (that I've found yet) are about access manholes of networks that convey the storm or sewer with small size pipes. it is obvious that tunnels (which have large diameter sections and free flow) should have different requirements & rules for manholes.
Could you please help me in this matter and send or introduce me the right design code & drawings?
Sincerely Yours
Hi you can surely have a look at this attached file or the link
http://cdn.wspgroup.com/8kzmue/drop-structure-design-for-wastewater-and-stormwater-collection-systems.pdf
Storm water runoff tunnel should be designed with data of maximum recorded inflow during monsoon with factor of safety.
Hi you can surely have a look at this attached file or the link
http://cdn.wspgroup.com/8kzmue/drop-structure-design-for-wastewater-and-stormwater-collection-systems.pdf
Srinivas Kasulla Thank you for your kind attention. I already looked at this reference, but there is no any detail, especially the access shaft drawings or design details. some few general notes are presented that could not be a good basis for design purposes.
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