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Water / hydrology Stormwater management plans for a flat city

Hawkeye66

Hawkeye66

Cyburbian
Messages
654
Points
24
My new town is pretty flat. By far the flattest of any I have worked in. They also are in need of a stormwater management plan. Can anyone point me to a plan for a city/town that is pretty flat? What things should we keep in mind as we develop it. This is actually a fairly challenging engineering problem.
 
mendelman

mendelman

Unfrozen Caveman Planner
Staff member
Moderator
Messages
15,006
Points
59
Hawkeye66 said:
My new town is pretty flat. By far the flattest of any I have worked in. They also are in need of a stormwater management plan. Can anyone point me to a plan for a city/town that is pretty flat? What things should we keep in mind as we develop it. This is actually a fairly challenging engineering problem.
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I would think a city in coastal-ish FL, LA, NC, SC, etc have tools or ways to think through this.

Maybe not exact analogs, but close - flat coastal areas at/very near sea level.

I think your goal is to be gravity fed structures to man made structures below the common surface elevation.

Talk to Arlington Heights, IL (2nd/3rd ring NW Chicago suburb). The landscape is fairly flat without many nearby surface water courses.

So over the decades they've had to build large manmade water retention and/or detention facilities.
 
P

P_Johnson76

Cyburbian
Messages
256
Points
10
Hawkeye66 said:
My new town is pretty flat. By far the flattest of any I have worked in. They also are in need of a stormwater management plan. Can anyone point me to a plan for a city/town that is pretty flat? What things should we keep in mind as we develop it. This is actually a fairly challenging engineering problem.
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If the city is so flat is storm water an issue? Or is the need to add facilities based on state code?
 
DVD

DVD

Cyburbian
Messages
15,420
Points
53
I would think Phoenix metro is relatively flat, but even we have washes and things to deal with not to mention the occasional mountain and that we're in a valley. A large flat valley. Generally we just do a lot of retention unless you happen to be next to a wash. In the end all water runs southwest for us.
 
P

P_Johnson76

Cyburbian
Messages
256
Points
10
DVD said:
I would think Phoenix metro is relatively flat, but even we have washes and things to deal with not to mention the occasional mountain and that we're in a valley. A large flat valley. Generally we just do a lot of retention unless you happen to be next to a wash. In the end all water runs southwest for us.
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Compared to the Midwest I've noticed phoenix has almost no detention ponds. Maybe they're just smaller or more out of the way
 
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