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How do you design/model a storm sewer "bubbler" system?

How do you design/model a storm sewer "bubbler" system?

How do you design/model a storm sewer "bubbler" system?

(OP)
I use Hydraflow Hydrographs to design storm sewer systems. Typically its a the standard system of pipes, inlets, and manholes that discharge through an outlet pipe to daylight. Due to topographic restraints a "bubbler" system has to be used. THe invert of the outlet pipe will be below ex. grade (and grading cant be done) so a catch basin will be installed and the water will build up and discharge out of the catch basin. (The catch basin top of grate will be low enough so up stream catch basins dont back up.) How would I model this system?

RE: How do you design/model a storm sewer "bubbler" system?

Cant you model this basin>culvert>riser pipe?

Thats how I would do it in HydroCAD.

RE: How do you design/model a storm sewer "bubbler" system?

You could probably do these as a basin in series as well.

Basin>culvert>Basin (which is really your inlet box), and just let it overtop the inlet.

RE: How do you design/model a storm sewer "bubbler" system?

Regardless of program, one needs to account for all the headloss even flowing through the grate(she CBs.

RE: How do you design/model a storm sewer "bubbler" system?

Read through the HH documentation and see if entering a manual tailwater will do it.

Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com

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