Road Stormwater Capacity

[RJLDesign]

My fellow designers

Im after some freeware or maybe some software some one maybe willing to share.

Im after a program that will give me a roads stormwater capacity when given the cross sectional profile and road longitudinal grade.

Any help would be greatly appreciated

Rj

Diplomacy Has Failed Time For Some Action

 

[RWF7437]

Quik2, a cutdown version of HEC-RAS, could be used to do the calculations you want. It is free and available from FEMA and from the Hydraulic Engineering Center at UC Davis. Do quick web search and you'll find either or both.

Good luck

 

[jugglerbri]

It's not free but check out Haestad Method's FlowMaster. It is basically a normal depth calculator for channels (you can use a predefined channel such as trapazoidal or circular or you can define your own cross section). It also will calculate inlet capacities based on HEC-22 as well as orifice and weirs. This is the software I would recomend to all drainage engineers.

Brian

 

[bltseattle]

I agree that Flowmaster is a good program, as is Hec-Ras. FLowmaster cannot handle complex systems or backwater conditions but is very easy to use.

The FHWA has free software available at their site to perform gutter flow and inlet design calculations.

You could also try a spreadsheet for gutter flow calculations, see:

http://www.wsdot.wa.gov/eesc/design/hydraulics/downloads.htm

Good luck