SITES INPUT using the Integrated Development Environment

1. SITES INPUT using the Integrated Development Environment __________________________ SITES 2005 INTEGRATED DEVELOPMENT ENVIRONMENT for WATER RESOURCE SITE ANALYSIS

2. OBJECTIVE • Understand SITES inputs • Navigate Integrated Development Environment (IDE)

3. Starting Out Start a new project Create initial data file Modify original data file for other runs

4. New Project Browse parent directory Type name of the new project (folder)

5. Home ScreenFile Menu Proceed – select Continue

6. Global Watershed Data Determines data to enter and analyses to perform

7. Watershed Schematic Hydrologic Model Structures Subwatersheds Channel reaches Junctions Click icon menu to add element to schematic • Single Structure • Uncontrolled Drainage Area Dbl-click to edit element

8. Watershed Info

9. Hydrologic Data Options

10. Structure Data Table 20 entries max Normal Entries(SA or Vol) Normal Entries Special Special

11. Structure Data Table • Enter PS rating • Special riser/conduit not defined by SITES • First row must be crest of PS • Enter AS rating • Preferred to let SITES create the AS rating • Crest of AS spwy is line preceding 1st AS discharge entry

12. Watershed Data

13. Rainfall – Princ Spwy If 10-d rainfall > 6” then 100-yr 10-d box disappears

14. PS Rainfall & Runoff • Rainfall/Runoff Screen ONLY applies to PSH • No PSH run, screen doesn’t appear • RUNOFF option used where snowmelt flooding should be checked • North-central and Northeastern US • AZ not included • See TR-60 Figure 2-1

15. Rainfall – Aux Spwy % PMP

16. Standard Distributions NRCS 6 hr NRCS 24 hr Type I NRCS 24 hr Type Ia NRCS 24 hr Type II NRCS 24 hr Type III Can enter non-standard distribution

17. Distribution Table Dimensionless or rainfall depth Values increasing

18. Pool Data Screen

19. Pool Data • Flood Pool Sediment • Optional entry • Value > crest of PS • Generally FP sediment = PS crest • Permanent Pool • Optional entry • Sets wave berm elevation

20. PS Type Common

21. PS Inlet Ke -energy loss inlet entrance to just inside the conduit See NRCS Design Note 8

22. PS Conduit Constant CL pipe outlet

23. Valley Elevations AS can erode down to “Elev of Valley Floor” Dam Height for classification Profile for embankment quantity computation (optional)

24. Profile Valley XSC Stripping depth 99 profile station/elev entries

25. Embankment Data

26. AS Crest Options

27. AS Crest Data PSH checked on Global WS Data SITES sets crest of AS PSH unchecked on Global WS Data screen User specifies AS crest elevation

28. Tie Station • Tie station is downstream end of level crest of auxiliary spillway • Ties auxiliary spillway crest information with geologic materials

29. AS Inlet Template Distance & Depth - from Tie Station

30. Vegetal Flow Resistance • Vegetal retardance curve index – Ag Handbook 667 • Vegetal retardance class (A–E) SCS TP-61 • Manning’s n

31. Fixed Point – AS Inlet • Physical feature controls inlet channel configuration • Example: hard rock outcrop • SITES forces inlet channel slope through fixed point • Fixed point must be upstream & below the crest

32. AS Exit Template

33. Channel Fill to Valley Floor • Constructed exit channel extended at constant slope to valley floor • General fill properties entered later Valley Floor Elev Fill

34. Vegetal Cover Factor & Maintenance Code • Used to compute effective stress on erodible boundary for uniform vegetal conditions • Discontinuities in cover minimize effect of cover factor (MC 2 or 3) • Erosion occurs in areas without cover • See Ag Handbook 667

35. Potential Rooting Depth& Topsoil Diameter • Rooting Depth > 1’ – protected • Rooting Depth < 1’ – strips away • Topsoil representative diameter only for stability analysis • Constructed exit channel only (no fill in natural ground) • Coarse-grained materials only(d75>0.05 inches)

36. AS Cross-section Trapezoidal 3 Methods Peak SDH Peak SDH

37. AS Materials

38. AS Materials Notes • Integrity evaluation of auxiliary spillway • Describe materials exposed to erosive attack • Geologic profile through spillway • Spillway centerline profile?? • Erosion occurs at weakest materials • Input weakest geologic profile in spillway • Material Description only for labeling • Be descriptive • “CL1, CH2, Limestone” are better than 1, 2

39. PI - Dry Density - % Clay • PI for time of phase 1 (surface-vegetation) failure • PI most important for materials initially exposed at spillway surface • Dry density and percent clay determe the erosion rate coefficient of downcutting for concentrated flow and headcuts in cohesive materials • Use either % clay or detach rate (jet erosion test)

40. Rep Diameter & Kh • Size of material detached as single unit • Fine grained materials & sediments - d75 • Large materials - • Governs computed threshold where surface shear detaches material in concentrated flow or headcut downcutting • Headcut erodibility index (Kh) governs threshold and rate for headcut advance

41. AS Geology Plot

42. AS Topsoil

43. Output Options

44. SDH FBH Only

46. AS Surface Profile

47. AS Surface Conditions

48. Save As . . . After the desired input data set is developed, the data is normally stored under a new file name.

49. Input Tips • Create project directory for each dam • Select projects from MRU list • Descriptive file names help • Use comments to document the alternative • Let SITES be the file manager • Send input file (*.d2c) to reviewer • Send input file (*.d2c) to reviewer

50. Typical Opening Sequence • Open Project Directory (select from list) • Open File (select file, NOT folder) • SITES build creates a folder with same name as input file • Continue – Next Screen Schematic • Dbl-click design structure • User spends most time editing design structure