HY8:HY-8: Difference between revisions

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HY-8 Versions 3.1, 4.1, and 6.0 were developed by Philip L. Thompson and were provided to the Federal Highway Administration (FHWA) for distribution.  HY-8 Versions 1.1, 2.1, and 3.0 were produced by the Pennsylvania State University in cooperation with FHWA.  The HY-8 Versions 3.0 and earlier versions were sponsored by the Rural Technical Assistance Program (RTAP) of the National Highway Institute under Project 18B administered by the Pennsylvania Department of Transportation.  Version 6.0 (Energy, HYD and Route) was produced by GKY and Associates under contract with FHWA.  Version 7.0 of HY-8 has been developed by Brigham Young University in cooperation with FHWA.  The primary purpose of the first Windows compatible version is to provide graphical user interface (GUI) for the same hydraulic calculations performed in version 6.1 of HY-8.  In the course of the development all program functions have been translated to C++.  Several minor bugs in version 6.1 have been corrected in HY-8 version 7.0.  
HY-8 Versions 3.1, 4.1, and 6.1 were developed by Philip L. Thompson and were provided to the Federal Highway Administration (FHWA) for distribution.  HY-8 Versions 1.1, 2.1, and 3.0 were produced by the Pennsylvania State University in cooperation with FHWA.  The HY-8 Versions 3.0 and earlier versions were sponsored by the Rural Technical Assistance Program (RTAP) of the National Highway Institute under Project 18B administered by the Pennsylvania Department of Transportation.  Version 6.1 (Energy, HYD, and Route) was produced by GKY and Associates under contract with FHWA.


   
Christopher Smemoe developed HY-8 7.0 at the Environmental Modeling Research Lab at Brigham Young University (BYU) under the direction of Jim Nelson of BYU and with the assistance of Rollin Hotchkiss (BYU) and Philip L. Thompson (Retired from FHWA).  The primary purpose of version 7.0 was to provide a Windows-based graphical user interface (GUI) for the same hydraulic calculations performed in version 6.1 of HY-8.  In the course of the development, all program culvert modeling functions were translated from Basic to the C++ programming language.  Several minor bugs in version 6.1 were corrected in HY-8 version 7.0.  Versions 7.1, 7.2, 7.3, 7.4, and 7.5 of HY-8 were incremental updates in which several new features were included and several bugs were fixed.  Besides bug fixes, the following new features were added to HY-8 7.1 and 7.2:
# Energy dissipation calculators
# A new culvert shape/coefficient database
# The ability to model buried (embedded) culverts
# The Utah State University exit loss equation was added as an option when computing outlet losses
# Modeling of plastic pipes
# Sequent depth computations for hydraulic jumps
# Several improvements and fixes were made to the HY-8 report generation tools.
# Section property matrix of 10 points for interpolation was replaced with direct computation of section properties for each discharge.


HY-8 automated the design methods described in HDS No. 5, "Hydraulic Design of Highway Culverts" dated September 1985, FHWA-IP-85-15; HEC No. 14.  Version 6.1 is the last version of the MS-DOS program that was distributed.  Future versions will likely incorporate revisions and updates to HEC-14, which was the basis for HY-8 energy dissipation.  Hydrologic calculations are available in the Watershed Modeling System (WMS).  Publications on the HY-8 version 7.0 theory are found in HDS-5, which is packaged with the program.
Christopher Smemoe and Eric Jones at Aquaveo (LLC) developed HY-8 7.3 with help from Rollin Hotchkiss (BYU) and Philip L. Thompson (Retired from FHWA). The following new features were added to HY-8 7.3:
# The profile computation code was rewritten to increase program stability and efficiency
# Capability was added to model hydraulic jumps and their lengths in culverts
# Capability was added to model broken back culverts and hydraulic jump locations/lengths in broken back culverts
# Ability to model horizontal and adverse slopes was added
# Two new culvert types were added to the culvert shape/coefficient database: Concrete open-bottom arch (CON/SPAN) and South Dakota prefabricated reinforced concrete box culverts


Christopher Smemoe and Eric Jones at Aquaveo (LLC) developed HY-8 7.4. The following new feature was added to HY-8 7.4:
# Aquatic Organism Passage (AOP)


The software has been structured to be self-contained and requires no user's manual. This facilitates its use by roadway design squadsHowever, the knowledgeable hydraulic engineer will also find the software package useful because it contains advanced featuresThis help file provides necessary instructions and clarifications.
Several graduate students contributed to both the theory and programming efforts of HY-8.  Brian Rowley assisted in the development of version 7.0 and 7.1 while a graduate student at BYU.  Elizabeth Thiele compared several culvert hydraulic computer models in her research and determined several improvements, some of which have just recently been implemented in '''[http://contentdm.lib.byu.edu/cdm/singleitem/collection/ETD/id/1004/rec/1 HY-8 in Culvert Hydraulics: Comparison of Current Computer Models] by Elizabeth Anne Thiele (2007)'''Nathan Lowe studied hydraulic jumps in various closed conduit configurations to make possible comprehensive hydraulic jump calculations in '''[http://contentdm.lib.byu.edu/cdm/singleitem/collection/ETD/id/1623/rec/2 Theoretical Determination of Subcritical Sequent Depths for Complete and Incomplete Hydraulic Jumps in Closed Conduits of Any Shape] by Nathan John Lowe (2008)'''Nathan's equations were used to determine locations and lengths of hydraulic jumps in HY-8 7.3.


HY-8 7.4 incorporates stream simulation aquatic organism passage, as described in [http://www.fhwa.dot.gov/engineering/hydraulics/pubs/11008/ Hydraulic Engineering Circular No. 26 (HEC-26)].


==''Related Topics''==
HY-8 7.5 incorporates Low Flow Hydraulics, as described in [http://www.fhwa.dot.gov/publications/research/infrastructure/structures/bridge/14064/14064.pdf Fish Passage in Large Culverts with Low Flows].


===Introduction===
HY-8 automates the design methods described in HDS No. 5, "Hydraulic Design of Highway Culverts", FHWA-NHI-12-029 and in HEC No.14, FHWA-NHI-06-086.  Version 6.1 is the last version of the MS-DOS program that was distributed.  Hydrologic calculations are available in the Watershed Modeling System (WMS) and in the FHWA Hydraulic Toolbox.
* [[WMS:HY-8|Introduction]]
* [[WMS:HY-8 Getting Started|HY-8 Getting Started]]
* [[WMS:HY-8 Differences from DOS HY-8|Differences from DOS HY-8]]
* [[WMS:HY-8 Limitations|Limitations]]
====Building a Project====
:* [[WMS:HY-8 Building a Project|Building a Project]]
:* [[WMS:HY-8 Locate Project|Locate Project]]
:* [[WMS:HY-8 Culvert Crossing Data|Culvert Crossing Data]]
:* [[WMS:HY-8 Run Analysis|Run Analysis]]
:* [[WMS:HY-8 Report Generation|Report Generation]]
===Crossings Data===
* [[WMS:HY-8 Crossings|Crossings]]
* [[WMS:HY-8 Discharge Data|Discharge Data]]
====Roadway Data====
:* [[WMS:HY-8 Roadway Data|Roadway Data]]
:* [[WMS:HY-8 Roadway Profile|Roadway Profile]]
====Tailwater Data====
:* [[WMS:HY-8 Tailwater Data|Tailwater Data]]
:* [[WMS:HY-8 Channel Shape|Channel Shape]]
:* [[WMS:HY-8 Rating Curve|Rating Curve]]
:* [[WMS:HY-8 Constant Tailwater Elevation|Constant Tailwater Elevation]]
=====Irregular Channel=====
::* [[WMS:HY-8 Irregular Channel|Irregular Channel]]
::* [[WMS:HY-8 Irregular Channel Error|Irregular Channel Error]]
===Culvert Data===
====Culvert Data====
:* [[WMS:HY-8 Culvert Data|Culvert Data]]
:* [[WMS:HY-8 Shapes|Shapes]]
:* [[WMS:HY-8 Material|Material]]
:* [[WMS:HY-8 Plastic Pipe Materials|Plastic Pipe Materials]]
:* [[WMS:HY-8 Concrete Open Bottom Arch|Concrete Open-Bottom Arch]]
:* [[WMS:HY-8 Inlet Type|Inlet Type]]
:* [[WMS:HY-8 Inlet Edge Conditions|Inlet Edge Conditions]]
:* [[WMS:HY-8 Inlet Depression|Inlet Depression]]
:* [[WMS:HY-8 Embedment Depth|Embedment Depth]]


====Site Data====
The software has been structured to be self-contained and this help file functions as the program's user's manual.  This facilitates its use by roadway design squads.  However, the knowledgeable hydraulic engineer will also find the software package useful because it contains advanced features.  This help file provides necessary instructions and clarifications.
:* [[WMS:HY-8 Site Data Input Option|Site Data Input Option]]
 
:* [[WMS:HY-8 Culvert Invert Data|Culvert Invert Data]]
The last update to HY-8 was: November 29, 2022
:* [[WMS:HY-8 Embankment Toe Data|Embankment Toe Data]]
 
===Analysis===
:'''''Note:''''' Aquaveo does not provide technical support for HY-8.
* [[WMS:HY-8 Project Units|Project Units]]
 
* [[WMS:HY-8 Roadway Overtopping|Roadway Overtopping]]
==External Links==
====Head Water Computations====
*[https://www.fhwa.dot.gov/engineering/hydraulics/software/hy8/ HY-8 Website]
=====Inlet Control=====
 
::* [[WMS:HY-8 Inlet Control Computations|Inlet Control Computations]]
 
::* [[WMS:HY-8 Polynomial Generation|Polynomial Generation]]
{{HY8Main}}
::* [[WMS:HY-8 Polynomial Coefficients|Polynomial Coefficients]]
 
=====Outlet Control=====
[[Category:HY-8 General Information|H]]
::* [[WMS:HY-8 Outlet Control Computations|Outlet Control Computations]]
[[Category:External Links]]
::* [[WMS:HY-8 Exit Loss Options|Exit Loss Options]]
====Tables and Plots====
:* [[WMS:HY-8 Tables and Plots|Tables and Plots]]
:* [[WMS:HY-8 Crossing Summary|Crossing Summary]]
:* [[WMS:HY-8 Culvert Summary|Culvert Summary]]
:* [[WMS:HY-8 Water Surface Profiles|Water Surface Profiles]]
:* [[WMS:HY-8 Improved Inlet|Improved Inlet]]
:* [[WMS:HY-8 Customized|Customized]]
:* [[WMS:HY-8 Controlling Plot Display Options|Controlling Plot Display Options]]
===Energy Dissipation===
* [[WMS:HY-8 Energy Dissipators|Energy Dissipators]]
====Scour Hole Geometry====
:* [[WMS:HY-8 Scour Hole Geometry|Scour Hole Geometry]]
====Internal Energy Dissipators====
:* [[WMS:HY-8 Increased Resistance in Box Culverts|Increased Resistance in Box Culverts]]
:* [[WMS:HY-8 Increased Resistance in Circular Culverts|Increased Resistance in Circular Culverts]]
:* [[WMS:HY-8 Tumbling Flow in Box Culverts|Tumbling Flow in Box Culverts]]
:* [[WMS:HY-8 Tumbling Flow in Circular Culverts|Tumbling Flow in Circular Culverts]]
:* [[WMS:HY-8 USBR Type IX Baffled Apron|USBR Type IX Baffled Apron]]
====External Dissipators====
=====Drop Structures=====
::* [[WMS:HY-8 Drop Structures|Drop Structures]]
::* [[WMS:HY-8 Box Inlet Drop Structure|Box Inlet Drop Structure]]
::* [[WMS:HY-8 Straight Drop Structure|Straight Drop Structure]]
=====Stilling Basin=====
::* [[WMS:HY-8 Stilling Basins|Stilling Basins]]
::* [[WMS:HY-8 USBR Type III Stilling Basin|USBR Type III Stilling Basin]]
::* [[WMS:HY-8 USBR Type IV Stilling Basin|USBR Type IV Stilling Basin]]
::* [[WMS:HY-8 Saint Anthony Falls (SAF Stilling Basin)|Saint Anthony Falls (SAF Stilling Basin)]]
=====Streambed level Structures=====
::* [[WMS:HY-8 Streambed Level Structures|Streambed Level Structures]]
::* [[WMS:HY-8 Colorado State University (CSU) Rigid Boundary Basin|Colorado State University (CSU) Rigid Boundary Basin]]
::* [[WMS:HY-8 Riprap Basin and Apron|Riprap Basin and Apron]]
::* [[WMS:HY-8 Contra Costa Basin |Contra Costa Basin ]]
::* [[WMS:HY-8 Hook Basin |Hook Basin ]]
::* [[WMS:HY-8 USBR Type VI Impact Basin|USBR Type VI Impact Basin]]

Latest revision as of 21:49, 24 October 2023

HY-8 Versions 3.1, 4.1, and 6.1 were developed by Philip L. Thompson and were provided to the Federal Highway Administration (FHWA) for distribution. HY-8 Versions 1.1, 2.1, and 3.0 were produced by the Pennsylvania State University in cooperation with FHWA. The HY-8 Versions 3.0 and earlier versions were sponsored by the Rural Technical Assistance Program (RTAP) of the National Highway Institute under Project 18B administered by the Pennsylvania Department of Transportation. Version 6.1 (Energy, HYD, and Route) was produced by GKY and Associates under contract with FHWA.

Christopher Smemoe developed HY-8 7.0 at the Environmental Modeling Research Lab at Brigham Young University (BYU) under the direction of Jim Nelson of BYU and with the assistance of Rollin Hotchkiss (BYU) and Philip L. Thompson (Retired from FHWA). The primary purpose of version 7.0 was to provide a Windows-based graphical user interface (GUI) for the same hydraulic calculations performed in version 6.1 of HY-8. In the course of the development, all program culvert modeling functions were translated from Basic to the C++ programming language. Several minor bugs in version 6.1 were corrected in HY-8 version 7.0. Versions 7.1, 7.2, 7.3, 7.4, and 7.5 of HY-8 were incremental updates in which several new features were included and several bugs were fixed. Besides bug fixes, the following new features were added to HY-8 7.1 and 7.2:

  1. Energy dissipation calculators
  2. A new culvert shape/coefficient database
  3. The ability to model buried (embedded) culverts
  4. The Utah State University exit loss equation was added as an option when computing outlet losses
  5. Modeling of plastic pipes
  6. Sequent depth computations for hydraulic jumps
  7. Several improvements and fixes were made to the HY-8 report generation tools.
  8. Section property matrix of 10 points for interpolation was replaced with direct computation of section properties for each discharge.

Christopher Smemoe and Eric Jones at Aquaveo (LLC) developed HY-8 7.3 with help from Rollin Hotchkiss (BYU) and Philip L. Thompson (Retired from FHWA). The following new features were added to HY-8 7.3:

  1. The profile computation code was rewritten to increase program stability and efficiency
  2. Capability was added to model hydraulic jumps and their lengths in culverts
  3. Capability was added to model broken back culverts and hydraulic jump locations/lengths in broken back culverts
  4. Ability to model horizontal and adverse slopes was added
  5. Two new culvert types were added to the culvert shape/coefficient database: Concrete open-bottom arch (CON/SPAN) and South Dakota prefabricated reinforced concrete box culverts

Christopher Smemoe and Eric Jones at Aquaveo (LLC) developed HY-8 7.4. The following new feature was added to HY-8 7.4:

  1. Aquatic Organism Passage (AOP)

Several graduate students contributed to both the theory and programming efforts of HY-8. Brian Rowley assisted in the development of version 7.0 and 7.1 while a graduate student at BYU. Elizabeth Thiele compared several culvert hydraulic computer models in her research and determined several improvements, some of which have just recently been implemented in HY-8 in Culvert Hydraulics: Comparison of Current Computer Models by Elizabeth Anne Thiele (2007). Nathan Lowe studied hydraulic jumps in various closed conduit configurations to make possible comprehensive hydraulic jump calculations in Theoretical Determination of Subcritical Sequent Depths for Complete and Incomplete Hydraulic Jumps in Closed Conduits of Any Shape by Nathan John Lowe (2008). Nathan's equations were used to determine locations and lengths of hydraulic jumps in HY-8 7.3.

HY-8 7.4 incorporates stream simulation aquatic organism passage, as described in Hydraulic Engineering Circular No. 26 (HEC-26).

HY-8 7.5 incorporates Low Flow Hydraulics, as described in Fish Passage in Large Culverts with Low Flows.

HY-8 automates the design methods described in HDS No. 5, "Hydraulic Design of Highway Culverts", FHWA-NHI-12-029 and in HEC No.14, FHWA-NHI-06-086. Version 6.1 is the last version of the MS-DOS program that was distributed. Hydrologic calculations are available in the Watershed Modeling System (WMS) and in the FHWA Hydraulic Toolbox.

The software has been structured to be self-contained and this help file functions as the program's user's manual. This facilitates its use by roadway design squads. However, the knowledgeable hydraulic engineer will also find the software package useful because it contains advanced features. This help file provides necessary instructions and clarifications.

The last update to HY-8 was: November 29, 2022

Note: Aquaveo does not provide technical support for HY-8.

External Links