Engineering Design Standards

2025 Required Improvements, Engineering Design Standards & Standard Details

  1. Full Standards (PDF)

Individual Standards Sections

  1. 100 - General Provisions, Requirements and Covenants (PDF)
  2. 200 - Grading, Storm Water Management, Wetlands, and Erosion Control (PDF)
  3. 300 - Storm Sewer and Sump Pump Drain System (PDF)
  4. 400 - Sanitary Sewer System (PDF)
  5. 500 - Water Distribution System (PDF)
  6. 600 - Roadway System (PDF)
  7. 700 - Commercial Site Development (PDF)
  8. 800 - Project Documents (PDF)
  9. 900 - Construction As-Built Drawings (PDF)

Section 1000 Engineering Standards Details

  1. Detail 01 - Catch Basin Type A (PDF)
  2. Detail 02 - Catch Basin Type C (PDF)
  3. Detail 03 - Inlet (PDF)
  4. Detail 04 - Storm Sewer Installation (PDF)
  5. Detail 05 - Sump Discharge Service Line (PDF)
  6. Detail 06 - Casting Installation and Adjusting (PDF)
  7. Detail 07 - Curb Inlets (PDF)
  8. Detail 08 - Pipe Restrictor (PDF)
  9. Detail 09 - Detention Pond Restrictor Structure Number 1 (PDF)
  10. Detail 10 - Detention Pond Restrictor Structure Number 2 (PDF)
  11. Detail 11 - Fire Hydrant (PDF)
  12. Detail 12 - Fire Hydrant in Excess of 7 Depth (PDF)
  13. Detail 13 - Pressure Connection Valve Vault (PDF)
  14. Detail 14 - Standard Valve (PDF)
  15. Detail 15 - Thrust Block Installations (PDF)
  16. Detail 16 - Water Sampling Station (PDF)
  17. Detail 17 - Water Main Installation (PDF)
  18. Detail 18 - Water Service (PDF)
  19. Detail 19 - Drop Connection (PDF)
  20. Detail 19A - Drop Connection (PDF)
  21. Detail 20 - Sanitary Manhole Pipe Connection (PDF)
  22. Detail 21 - Sanitary Sewer Installation (PDF)
  23. Detail 22 - Sewer Service for Sanitary Sewers (New Lenox, IL) (PDF)
  24. Detail 22A - Sewer Service for Sanitary Sewers (PDF)
  25. Detail 23 - Casing Pipe (PDF)
  26. Detail 24 - Manhole Type A (PDF)
  27. Detail 25 - Typical Service Laterals (PDF)
  28. Detail 26 - Bituminous Pavement Patching (PDF)
  29. Detail 27 - Mountable Combination Concrete Curb and Gutter Type M-3.12 (PDF)
  30. Detail 28 - Barrier Combination Concrete Curb and Gutter Type B-6.12 (PDF)
  31. Detail 29 - Concrete Curb, Type B (PDF)
  32. Detail 30 - Curb Ramps Accessible to the Disabled (PDF)
  33. Detail 31 - Multi-User Path (PDF)
  34. Detail 32 - Roadway Cross-Section – Typical Residential (PDF)
  35. Detail 33 - Roadway Cross-Section – Multi-Family Street (PDF)
  36. Detail 34 - Roadway Cross-Section – Collector (PDF)
  37. Detail 35 - Roadway Cross Section – Minor Arterial (PDF)
  38. Detail 36 - Roadway Cross Section - Arterial (PDF)
  39. Detail 37 - Roadway Cross Section - Industrial (PDF)
  40. Detail 38 - Concentric Cul-de-Sac (PDF)
  41. Detail 39 - Typical Pavement Section at Cul-de-Sac Bubble (PDF)
  42. Detail 40 - Commercial Entrance (PDF)
  43. Detail 41 - Parking Lot Cross-Section (PDF)
  44. Detail 42 - Sidewalk (PDF)
  45. Detail 43 - Street Light - Residential (PDF)
  46. Detail 44 - Street Light – Arterial (PDF)
  47. Detail 45 - Street Light - Decorative (PDF)
  48. Detail 46 - Breakaway Base (PDF)
  49. Detail 47 - Concrete Foundation (PDF)
  50. Detail 48 - Typical Conduit Installation (PDF)
  51. Detail 49 - Street Lighting Notes (PDF)
  52. Detail 50 - Subdivision Street Signs (PDF)
  53. Detail 51 - Permanent Monuments (PDF)