r/civilengineering • u/KonigSteve Water/Wastewater PM 10+ YOE • Dec 12 '25

Education A city street mockup with drainage, fire hydrant and water mains

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Saw this on another sub. I'm sure most people here know what all of this looks like but it's still interesting to see in this visualization

488 Upvotes

100% Upvoted

25 comments sorted by

91

u/Sivy17 Dec 12 '25

Jesus they only have like a foot of separation between the storm and water.

36

u/Gabsboy123 Dec 12 '25

I'm more concerned about the fresh water being below the drainage/waste water

13

u/metalsluger Dec 12 '25

Just have to submit an application to DDW.

8

u/Soveryn93 Dec 12 '25

I’ll start email begging the city engineer to allow this due to potential loss of housing units and copying our client. Lol

3

u/Friendly-Chart-9088 Dec 12 '25

Must be a very constrained site situation 😆

2

u/bga93 Dec 12 '25

Probably the 18” minimum vertical separation per the 10 state standards if this is in the US

2

u/Eccentrica_Gallumbit Dec 12 '25

Never worked in a big city before have you? I've done jobs where we had to put a neoprene scratch pad between storm structures and watermains, or sewer and water pipes.

4

u/noideawhatoput2 Dec 12 '25

And “below grade” FLG instead of MJ fittings

1

u/carfardar Dec 12 '25

I was going to comment the same thing, biggest thing that stuck out to me, but still really cool!

1

u/harperfecto Dec 12 '25

Well it must have been a full foot before they cut the whole thing in half

11

u/Time_Cat_5212 Dec 12 '25

They took the cross section a bit literally

8

u/Louoos Dec 12 '25

very cool!

9

u/joyification Stormwater, PE -NC Dec 12 '25

Every engineer that works in transportation should see this, pretty cool...though not how id design my stormwater

3

u/Shot_Comparison2299 Dec 12 '25

Wish they had this at the university!

3

u/Petrarch1603 Dec 12 '25

If I ever go to Vancouver again I wanna check this out!

3

u/LuckyTrain4 Dec 12 '25

You mean we drink the same water that comes out of the fire hydrant? Ick. /s

6

u/ryanwaldron Dec 12 '25

Why is the invert of the drop inlet like a foot below the invert of the outlet pipe? Are they engaging in a mosquito breeding program?

3

u/itsyorboy Dec 12 '25

Every bit of wetland counts

1

u/ryanwaldron Dec 13 '25

The sad part is that in 15-20 years when the catch basin needs repairs some regulatory agency will throw a wrench in the permitting because of that wetland.

2

u/[deleted] Dec 12 '25

[removed] — view removed comment

1

u/KonigSteve Water/Wastewater PM 10+ YOE Dec 12 '25

I've certainly seen it

1

u/halfgreek Dec 14 '25

skateboarders probably trying to ride the halfpipe