Mich. Admin. Code R. 325.3344 - Hydraulic grade line
Rule 44. The established hydraulic grade line for a storm water collection system based on the requirements of R 325.3342 and R 325.3343 shall be shown on the plans. The hydraulic grade line shall not exceed the elevation of the catch basin inlet castings or the overflow rim of open drains.
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.