HY8:AOP SS Input Reach Data: Difference between revisions

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Note that HY-8 has now been updated to allow the user to enter the 'site data' in the Culvert Crossing Input Data Dialog in ascending or descending order, and this table will need to follow the same order that was entered in the Culvert Crossing Input Data Dialog.
Note that HY-8 has now been updated to allow the user to enter the 'site data' in the Culvert Crossing Input Data Dialog in ascending or descending order, and this table will need to follow the same order that was entered in the Culvert Crossing Input Data Dialog.


==Reach Stability==
 
Finally, the user must make a stream stability assessment and then answer the Reach stability questions.  Is the streambed in Dynamic Equilibrium?  If not, does the channel stability support culvert design.  If the answer to both questions is no, the stream needs to be stabilized before the aquatic organism passage can be determined.


=Data Validation=
=Data Validation=

Revision as of 19:19, 26 June 2014

AOP Stream Simulation, Input Reach Data

AopStreamSimulationInputData.jpg

Flows

The user needs to determine the lowest and highest flow that will still require aquatic organism passage. The lowest flow the user is allowed to enter is 1 cfs. The user can specify the flow directly, or if the flow has already been entered in the Culvert Input Data Dialog, you can select the flow in the drop down menu. If multiple flows are below 1 cfs, then the list will have "1 cfs" multiple times, but will not cause any computational issues. HEC 26 provides guidance on determining these flows in Chapter 5.

The user will then need to determine the hydraulic design flow, which is the design flow used to design the culvert crossing. It is used to determine that the embedment will be stable.

Cross-Sections

HY-8 will use the culvert length to determine the length upstream and downstream that the cross-sections need to cover. The user will then need to enter 3 cross sections upstream and 3 cross sections downstream. More cross sections will give HY-8 more information to compare.

Cross-Section Table

The user can then enter the name of each cross-section (or leave it with the default name), must enter the station, then define the geometry of the cross-section. Note that HY-8 has now been updated to allow the user to enter the 'site data' in the Culvert Crossing Input Data Dialog in ascending or descending order, and this table will need to follow the same order that was entered in the Culvert Crossing Input Data Dialog.


Data Validation

AopStreamSimulationDataValidation.jpg

When the user moves to another step of the AOP Stream Simulation, HY-8 will check the input for any errors. If they are detected, a dialog will pop up with a list of errors and the category they belong to. These errors must be corrected before you can continue to a new step.

v • e
HY-8
Introduction:Getting Started   •   Layout   •   Vena Contracta   •   Building a Project   •   Locate Project   •   Culvert Crossing Data   •   Run Analysis   •   Report Generation
Crossing and Culvert Data:Crossings   •   Discharge Data   •   Roadway Data   •   Tailwater Data   •   Irregular Channel   •   Culvert Data   •   Site Data   •   Culvert Invert Data   •   Embankment Toe Data
AnalysisProject Units   •   Roadway Overtopping   •   Inlet Control Computations   •   Outlet Control Computations   •   Tables and Plots
Energy DissipationScour Hole Geometry   •   Increased Resistance   •   Tumbling Flow   •   USBR Type IX Baffled Apron   •   Drop Structures   •   Stilling Basins   •   Streambed Level Structures
MethodsAquatic Organism Passage   •   Low Flow Hydraulics
TroubleshootingDifferences from DOS HY-8   •   Limitations   •   HY-8 User Manual
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