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Length of culvert's apron
take a look at the NYSDEC erosion control handbook with expamples referencing nomographs for discharges from pipes and the dicaharge velovity. http://www.dec.ny.gov/docs/water_pdf/section5b_perm_str.pdf- jev2740
- Post #4
- Forum: Civil/Environmental engineering general discussion
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turning radius for a drive through
if you have the room try providing a some space thru the drive aisle and called it an escape lane. a dunkin donuts layout i recently did, we showed an 18' wide lane (where we could) and called out 8' of it the escape lane. the planning board absolutley loved this idea of not being boxed into the...- jev2740
- Post #7
- Forum: Civil/Environmental engineering general discussion
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turning radius for a drive through
i wouldnt get all worked up about a suggestion to go look at something that has been built, there are plenty of drive-thrus i have gone thru personally that i can say were pretty poorly planned and designed or someone just cheated along the way. A 20' radius is going to give you plenty or room...- jev2740
- Post #6
- Forum: Civil/Environmental engineering general discussion
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Modeling Vortechs
yes the unit has a cfs limit of 1.6 i need to design it for a minimum of .86cfs. what i am seeing is that you can expect some settling in the unit during the WQv event and the bypass will need to be above the highest point of storag in the unit for the unit to be most effeciant in terms of...- jev2740
- Post #12
- Forum: HydroCAD Stormwater Modeling
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Modeling Vortechs
it is modeled as two ponds, thats not really the problem- jev2740
- Post #10
- Forum: HydroCAD Stormwater Modeling
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Modeling Vortechs
yes i have checked the special outlets and it is not included, the manufacturer can provided the data to me but i have not recieved it yet. I am back in the office this morning and what i will try first is raising the bypass invert to the top of the device to take full advantage of the head put...- jev2740
- Post #8
- Forum: HydroCAD Stormwater Modeling
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Modeling Vortechs
thats the way i have it modeled. was looking to see if there is a stage discharge report available for these devices to import similar to those for the vortex valve.- jev2740
- Post #5
- Forum: HydroCAD Stormwater Modeling
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Modeling Vortechs
no it is not a vortex valve typically used as an outlet device it is a vortech unit used as a pretreatment device to seperate solids and sediment prior to entry into the pond, in this case the pond is subsurface detention.- jev2740
- Post #3
- Forum: HydroCAD Stormwater Modeling
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Modeling Vortechs
Modeling an offline vortech unit with a bypass for the first time in hydrocad and need some advice on how to go about it. the bypass is provided at an upstream manhole; outlet above the inlet to the vortech to a down stream manhole. i have tried a number of different ways but dont see the...- jev2740
- Thread
- Replies: 12
- Forum: HydroCAD Stormwater Modeling
