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  • Users: 0000jz
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  1. 0000jz

    Recommended Hydraulic Modeling Method

    I am looking for recommendations from experienced users. For cross-pipe analysis of pipes which are not culverts that impact FEMA floodplains, and where HY-8 is invalid due to velocity limitations, would you recommend using HEC-RAS or using HDS-5 Nomographs? Why?
  2. 0000jz

    HY-8 Velocity Limitation

    I am using HY-8 for the analysis of existing cross-pipes, trying to determine headwater elevations. The drainage manual i am using lists conflicting limitations for the HY-8 software. In one instance, it is noted that HY-8 should not be used where entrance velocity exceeds 5 ft/s. In another...

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