SITES 2005 Water Resource Site Analysis Computer Program User Guide October 2007 Issued October 2007 The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720–2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, SW., Washington, DC 20250–9410, or call (800) 795–3272 (voice) or (202) 720–6382 (TDD). USDA is an equal opportunity provider and employer. The SITES Water Resource Site Analysis computer program version 2005 will analyze the hydrology and hydraulics for designs typical of NRCS Preface dams and ponds. This user guide will help novice and experienced users prepare input, understand the software methodology, and interpret the output. The information needed to utilize the Integrated Development Environment (IDE) for management of input and output in the Windows® environment is provided in a single location in the guide. The remainder of the guide documents the computational portion of the program and the input and output associated with that portion. Much of the technical information provided in this user guide is repeated in the context sensitive IDE help for convenience. Therefore, the occasional user will generally not be required to become familiar with the details of the control file structure documented herein. SITES version 2005 is improved over SITES version 2000.5 and the DAMS2 routines from which it is descended through inclusion of the following features: • An Integrated Development Environment (IDE) has been added for interactive Windows® application and a data integrity check routine is provided to assist in identifying data deficiencies prior to performing computations. The IDE automatically develops the control file used by the computational routine (DAMSITE) from data entered through an interactive user interface. The interface also provides for graphical display of output and comparison of the results from multiple data files. • Earth Spillway Erosion Technology for stability and integrity analyses is now included in the SITES program. The effects of barriers in the auxiliary spillway can be analyzed. Hood inlet calculations and flood pool drawdown computations are also available. Control words have been added as needed to implement the new features. • The new default inflow hydrograph generation procedure is similar to that in the revised NRCS WinTR-20 Beta test program (NRCS, 2003), and hydrographs can have up to 5,000 points. • The Muskingum-Cunge valley flood routing procedure is the default for the damsite executable included with the IDE. • The default water surface profile procedure (WSPVRT) is based on variable retardance in the auxiliary spillway with the spillway profile defined through the inlet and exit channel to the valley floor. • The program messages are revised and categorized into errors, warnings, messages, and notes listed and described in Appendix D. • This version of the program and guide contains terminology reflecting the current Practice Standard 402 for Dams (2002) (TR–60) and the replacement of TR–2 by NEH, Part 628, Dams, Chapter 50, Earth Spillway Design (1998), Chapter 51, Earth Spillway Erosion Model (1998), and Chapter 52, Field Procedures Guide for Headcut Erodibility Index (2001). In these documents, the emergency spillway (ES) is referred to as the auxiliary spillway (AS), and the emergency spillway hydrograph (ESH) is referred to as the stability design hydrograph (SDH). The name of the former DAMS2 program is DAMSITE and the guide’s title is SITES User Guide. The design (210–728.5, SITES 2005, October 2007) i classes of dams are defined in TR–60 as low hazard, significant hazard, and high hazard replacing the old A, B, and C designations. • Those control words beginning with ES– have been changed to begin with AS– to reflect the new terminology. Similarly, the DAMS2 control word has been replaced by the SITES control word. The program will currently accept both old and new control words; use of SITES and the AS– revisions are encouraged. • The software will automatically design a dam or pond to comply with the NRCS criteria contained in either Practice Standard 402 for Dams (2002) (TR–60) or 378 for Ponds as existed when the software was developed. Criteria are constantly being updated or revised. New criteria may need to be entered manually to override existing default options in the software. If an advanced user operates outside of the IDE using the control file directly, they must enter data for the 24-hour storm to override the default 6-hour B distribution default option in the DAMSITE routine. Please report any problems you find to the National Design, Construction, and Soil Mechanics Center Staff (817-509-3752) or the hydraulic engineer in your state. ii (210–728.5, SITES 2005, October 2007) The Water Resource Site Analysis Computer Program—SITES was revised by the following: Acknowledgments D. Temple, ARS, Oklahoma H. Richardson, NRCS, Washington, DC (retired) H. Fox Moody, NRCS, Beltsville, MD H. Goon, NRCS, Washington, DC (retired) M. Lobrecht, NRCS, Texas J. Brevard, NRCS, Washington, DC (retired) G. Hanson, ARS, Oklahoma E. Putnam, NRCS, New York (retired) M. Neilsen, professor, Kansas State University, Kansas D. Woodward, NRCS, Washington, DC (retired) N. Miller, NRCS, Washington, DC (retired) G. Conaway, NRCS, Oregon (retired) D. Hazlewood, NRCS, Colorado (retired) Conservation Engineering Division U.S. Department of Agriculture Natural Resources Conservation Service (210–728.5, SITES 2005, October 2007) iii iv (210–728.5, SITES 2005, October 2007) Chapter 1 Introduction ............................................................................... 1–1 Contents Chapter 2 Program Description ................................................................ 2–1 Chapter 3 SITES Integrated Development Environment ...................... 3–1 Chapter 4 Control File for DAMSITE Input ............................................. 4–1 Typical Runs for Single Structures ......................................... 4–4 Typical Runs for Systems of Structures and Subwatersheds .................................................................... 4–108 Alternate Input Possibilities ................................................ 4–132 Changes to Program Defined Input .................................... 4–153 Changes to Program Defined Criteria ................................ 4–195 Alternate Spillway Designs .................................................. 4–203 Chapter 5 Output Description ................................................................... 5–1 Chapter 6 References ................................................................................. 6–1 Chapter 7 Glossary ...................................................................................... 7–1 Chapter 8 Conversions ............................................................................... 8–1 Appendixes A SITES Integrated Development Environment Quick Start Guide ..................................................................... A–1 B SITES Integrated Development Environment: Frequently Asked Questions ................................................... B–1 C Sample Jobs ............................................................................. C–1 D Output Errors, Warnings, Messages, and Notes ................... D–1 E DAMSITE Control Words ....................................................... E–1 F Blank Worksheets .....................................................................F–1 Table 1–1 Description of DAMSITE generated files ........................ 1–4 Tables Table 4–1 Input options to obtain program generated special output files ............................................................. 4–3 Table 4–2 Examples of control words needed for various cases ...................................................................... 4–7 Table 4–3 Auxiliary spillway channel bottom profile reference numbers defined by the program ................. 4–24 Table 4–4 Complex series routing with the IDE .......................... 4–114 Table 4–5 Hydrograph storage arrays ........................................... 4–117 Table 4–6 Internal hydrograph procedures .................................. 4–118 Table 4–7 Alternative spillway designs ......................................... 4–203 Table 5–1 Abbreviations used in output ........................................... 5–2 Table 5–2 Development of rating tables computed in program (drop or hood inlet PS and earth or vegetated AS) ................................................................... 5–22 (210–728.5, SITES 2005, October 2007) v Figures Figure 2–1 DAMSITE terminology .................................................... 2–3 Figure 2–2 Simplified processing sequence in DAMSITE ............... 2–9 Figure 3–1 SITES IDE interfaces ....................................................... 3–2 Figure 3–2 Top-Level Interface ........................................................